From owner-freebsd-stable@FreeBSD.ORG Fri Dec 11 04:07:29 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9F989106566C for ; Fri, 11 Dec 2009 04:07:29 +0000 (UTC) (envelope-from pusateri@bangj.com) Received: from jj.bangj.com (jj.bangj.com [198.86.87.199]) by mx1.freebsd.org (Postfix) with ESMTP id 907408FC14 for ; Fri, 11 Dec 2009 04:07:28 +0000 (UTC) Received: from [172.16.10.11] (cpe-066-026-040-218.nc.res.rr.com [66.26.40.218]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (No client certificate requested) by jj.bangj.com (Postfix) with ESMTPSA id BBF49E08; Thu, 10 Dec 2009 23:07:25 -0500 (EST) Mime-Version: 1.0 (Apple Message framework v1077) Content-Type: multipart/mixed; boundary=Apple-Mail-7-876888700 From: Tom Pusateri In-Reply-To: Date: Thu, 10 Dec 2009 23:07:26 -0500 Message-Id: References: <3E18B7A0-9391-47A2-B52D-24E44DDF1A33@bangj.com> To: "Li, Qing" X-Mailer: Apple Mail (2.1077) Cc: freebsd-stable@freebsd.org Subject: Re: IPv6 - bad neighbor solicitation messages X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Dec 2009 04:07:29 -0000 --Apple-Mail-7-876888700 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Its been happening for a while. I've attached the tcpdump textual output, the tcpdump raw saved file, = and before and after netstat -s output. Thanks, Tom On Dec 10, 2009, at 10:22 PM, Li, Qing wrote: > I haven't made any significant changes in the IPv6 code > for 3 months now. Could you please get a packet capture and=20 > email it to me? >=20 > Thanks, >=20 > -- Qing --Apple-Mail-7-876888700 Content-Disposition: attachment; filename=tcpdump.txt Content-Type: text/plain; name="tcpdump.txt" Content-Transfer-Encoding: quoted-printable 22:59:51.008261 IP6 (hlim 63, next-header ICMPv6 (58) payload length: = 16) 2610:28:1800:4001:225:ff:fef1:7305 > = 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, echo = request, length 16, seq 0 22:59:51.008291 IP6 (hlim 64, next-header ICMPv6 (58) payload length: = 16) 2610:28:1800:4001:2a0:c9ff:fe45:326c > = 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, echo reply, = length 16, seq 0 22:59:52.562108 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum = ok] ICMP6, neighbor solicitation, length 32, who has = 2610:28:1800:4001:2a0:c9ff:fe45:326c source link-address option (1), length 8 (1): = 00:25:00:f1:73:05 22:59:52.562134 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > = 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor = advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, = Flags [solicited, override] destination link-address option (2), length 8 (1): = 00:a0:c9:45:32:6c 22:59:52.562382 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 120) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: = [icmp6 sum ok] ICMP6, redirect, length 120, = 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305 redirected header option (4), length 80 (10):=20 0x0000: 040a 0000 0000 0000 6000 0000 0020 3afe 0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c 0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305 0x0030: 8800 2ee6 6000 0000 2610 0028 1800 4001 0x0040: 02a0 c9ff fe45 326c 0201 00a0 c945 326c 22:59:53.562387 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum = ok] ICMP6, neighbor solicitation, length 32, who has = 2610:28:1800:4001:2a0:c9ff:fe45:326c source link-address option (1), length 8 (1): = 00:25:00:f1:73:05 22:59:53.562405 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > = 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor = advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, = Flags [solicited, override] destination link-address option (2), length 8 (1): = 00:a0:c9:45:32:6c 22:59:53.562556 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 120) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: = [icmp6 sum ok] ICMP6, redirect, length 120, = 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305 redirected header option (4), length 80 (10):=20 0x0000: 040a 0000 0000 0000 6000 0000 0020 3afe 0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c 0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305 0x0030: 8800 2ee6 6000 0000 2610 0028 1800 4001 0x0040: 02a0 c9ff fe45 326c 0201 00a0 c945 326c 22:59:54.562607 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum = ok] ICMP6, neighbor solicitation, length 32, who has = 2610:28:1800:4001:2a0:c9ff:fe45:326c source link-address option (1), length 8 (1): = 00:25:00:f1:73:05 22:59:54.562630 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > = 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor = advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, = Flags [solicited, override] destination link-address option (2), length 8 (1): = 00:a0:c9:45:32:6c 22:59:54.562770 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 120) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: = [icmp6 sum ok] ICMP6, redirect, length 120, = 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305 redirected header option (4), length 80 (10):=20 0x0000: 040a 0000 0000 0000 6000 0000 0020 3afe 0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c 0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305 0x0030: 8800 2ee6 6000 0000 2610 0028 1800 4001 0x0040: 02a0 c9ff fe45 326c 0201 00a0 c945 326c 22:59:56.008687 IP6 (hlim 63, next-header ICMPv6 (58) payload length: = 16) 2610:28:1800:4001:225:ff:fef1:7305 > = 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 sum ok] ICMP6, echo = request, length 16, seq 5 22:59:56.008704 IP6 (hlim 64, next-header ICMPv6 (58) payload length: = 16) 2610:28:1800:4001:2a0:c9ff:fe45:326c > = 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, echo reply, = length 16, seq 5 22:59:56.008825 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 104) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: = [icmp6 sum ok] ICMP6, redirect, length 104, = 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305 redirected header option (4), length 64 (8):=20 0x0000: 0408 0000 0000 0000 6000 0000 0010 3a3f 0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c 0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305 0x0030: 8100 d5d9 0e94 0005 4b21 c3bb 000e 1c77 22:59:56.008837 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) fe80::2a0:c9ff:fe45:326c > fe80::20e:cff:fe74:9778: [icmp6 sum ok] = ICMP6, neighbor solicitation, length 32, who has fe80::20e:cff:fe74:9778 source link-address option (1), length 8 (1): = 00:a0:c9:45:32:6c 22:59:56.008947 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 24) fe80::20e:cff:fe74:9778 > fe80::2a0:c9ff:fe45:326c: [icmp6 sum ok] = ICMP6, neighbor advertisement, length 24, tgt is = fe80::20e:cff:fe74:9778, Flags [router, solicited] 22:59:56.009587 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001::1 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 = sum ok] ICMP6, neighbor solicitation, length 32, who has = 2610:28:1800:4001:2a0:c9ff:fe45:326c source link-address option (1), length 8 (1): = 00:0e:0c:74:97:78 22:59:57.009900 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001::1 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 = sum ok] ICMP6, neighbor solicitation, length 32, who has = 2610:28:1800:4001:2a0:c9ff:fe45:326c source link-address option (1), length 8 (1): = 00:0e:0c:74:97:78 22:59:57.563329 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum = ok] ICMP6, neighbor solicitation, length 32, who has = 2610:28:1800:4001:2a0:c9ff:fe45:326c source link-address option (1), length 8 (1): = 00:25:00:f1:73:05 22:59:57.563348 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > = 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor = advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, = Flags [solicited, override] destination link-address option (2), length 8 (1): = 00:a0:c9:45:32:6c 22:59:58.010222 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001::1 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: [icmp6 = sum ok] ICMP6, neighbor solicitation, length 32, who has = 2610:28:1800:4001:2a0:c9ff:fe45:326c source link-address option (1), length 8 (1): = 00:0e:0c:74:97:78 22:59:58.563549 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum = ok] ICMP6, neighbor solicitation, length 32, who has = 2610:28:1800:4001:2a0:c9ff:fe45:326c source link-address option (1), length 8 (1): = 00:25:00:f1:73:05 22:59:58.563565 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > = 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor = advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, = Flags [solicited, override] destination link-address option (2), length 8 (1): = 00:a0:c9:45:32:6c 22:59:58.563679 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 120) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: = [icmp6 sum ok] ICMP6, redirect, length 120, = 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305 redirected header option (4), length 80 (10):=20 0x0000: 040a 0000 0000 0000 6000 0000 0020 3afe 0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c 0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305 0x0030: 8800 2ee6 6000 0000 2610 0028 1800 4001 0x0040: 02a0 c9ff fe45 326c 0201 00a0 c945 326c 22:59:59.563828 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:225:ff:fef1:7305 > ff02::1:ff45:326c: [icmp6 sum = ok] ICMP6, neighbor solicitation, length 32, who has = 2610:28:1800:4001:2a0:c9ff:fe45:326c source link-address option (1), length 8 (1): = 00:25:00:f1:73:05 22:59:59.563846 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) 2610:28:1800:4001:2a0:c9ff:fe45:326c > = 2610:28:1800:4001:225:ff:fef1:7305: [icmp6 sum ok] ICMP6, neighbor = advertisement, length 32, tgt is 2610:28:1800:4001:2a0:c9ff:fe45:326c, = Flags [solicited, override] destination link-address option (2), length 8 (1): = 00:a0:c9:45:32:6c 22:59:59.564017 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) fe80::20e:cff:fe74:9778 > ff02::1:ff45:326c: [icmp6 sum ok] ICMP6, = neighbor solicitation, length 32, who has = 2610:28:1800:4001:2a0:c9ff:fe45:326c source link-address option (1), length 8 (1): = 00:0e:0c:74:97:78 22:59:59.564030 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 32) fe80::2a0:c9ff:fe45:326c > fe80::20e:cff:fe74:9778: [icmp6 sum ok] = ICMP6, neighbor advertisement, length 32, tgt is = 2610:28:1800:4001:2a0:c9ff:fe45:326c, Flags [solicited, override] destination link-address option (2), length 8 (1): = 00:a0:c9:45:32:6c 22:59:59.564243 IP6 (hlim 255, next-header ICMPv6 (58) payload length: = 120) fe80::20e:cff:fe74:9778 > 2610:28:1800:4001:2a0:c9ff:fe45:326c: = [icmp6 sum ok] ICMP6, redirect, length 120, = 2610:28:1800:4001:225:ff:fef1:7305 to 2610:28:1800:4001:225:ff:fef1:7305 redirected header option (4), length 80 (10):=20 0x0000: 040a 0000 0000 0000 6000 0000 0020 3afe 0x0010: 2610 0028 1800 4001 02a0 c9ff fe45 326c 0x0020: 2610 0028 1800 4001 0225 00ff fef1 7305 0x0030: 8800 2ee6 6000 0000 2610 0028 1800 4001 0x0040: 02a0 c9ff fe45 326c 0201 00a0 c945 326c --Apple-Mail-7-876888700 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii --Apple-Mail-7-876888700 Content-Disposition: attachment; filename=netstat1 Content-Type: application/octet-stream; name="netstat1" Content-Transfer-Encoding: 7bit tcp: 261 packets sent 238 data packets (49512 bytes) 6 data packets (432 bytes) retransmitted 1 data packet unnecessarily retransmitted 0 resends initiated by MTU discovery 13 ack-only packets (5 delayed) 0 URG only packets 0 window probe packets 0 window update packets 4 control packets 370 packets received 229 acks (for 49517 bytes) 12 duplicate acks 0 acks for unsent data 130 packets (10535 bytes) received in-sequence 0 completely duplicate packets (0 bytes) 0 old duplicate packets 0 packets with some dup. data (0 bytes duped) 0 out-of-order packets (0 bytes) 0 packets (0 bytes) of data after window 0 window probes 1 window update packet 0 packets received after close 0 discarded for bad checksums 0 discarded for bad header offset fields 0 discarded because packet too short 0 discarded due to memory problems 1 connection request 2 connection accepts 0 bad connection attempts 0 listen queue overflows 0 ignored RSTs in the windows 3 connections established (including accepts) 7 connections closed (including 0 drops) 3 connections updated cached RTT on close 3 connections updated cached RTT variance on close 2 connections updated cached ssthresh on close 0 embryonic connections dropped 229 segments updated rtt (of 155 attempts) 5 retransmit timeouts 0 connections dropped by rexmit timeout 0 persist timeouts 0 connections dropped by persist timeout 0 Connections (fin_wait_2) dropped because of timeout 0 keepalive timeouts 0 keepalive probes sent 0 connections dropped by keepalive 0 correct ACK header predictions 123 correct data packet header predictions 2 syncache entries added 0 retransmitted 1 dupsyn 0 dropped 2 completed 0 bucket overflow 0 cache overflow 0 reset 0 stale 0 aborted 0 badack 0 unreach 0 zone failures 2 cookies sent 0 cookies received 1 SACK recovery episode 1 segment rexmit in SACK recovery episodes 48 byte rexmits in SACK recovery episodes 8 SACK options (SACK blocks) received 0 SACK options (SACK blocks) sent 0 SACK scoreboard overflow 0 packets with ECN CE bit set 0 packets with ECN ECT(0) bit set 0 packets with ECN ECT(1) bit set 0 successful ECN handshakes 0 times ECN reduced the congestion window udp: 637 datagrams received 0 with incomplete header 0 with bad data length field 0 with bad checksum 5 with no checksum 10 dropped due to no socket 221 broadcast/multicast datagrams undelivered 0 dropped due to full socket buffers 0 not for hashed pcb 406 delivered 178 datagrams output 0 times multicast source filter matched sctp: 0 input packets 0 datagrams 0 packets that had data 0 input SACK chunks 0 input DATA chunks 0 duplicate DATA chunks 0 input HB chunks 0 HB-ACK chunks 0 input ECNE chunks 0 input AUTH chunks 0 chunks missing AUTH 0 invalid HMAC ids received 0 invalid secret ids received 0 auth failed 0 fast path receives all one chunk 0 fast path multi-part data 0 output packets 0 output SACKs 0 output DATA chunks 0 retransmitted DATA chunks 0 fast retransmitted DATA chunks 0 FR's that happened more than once to same chunk 0 intput HB chunks 0 output ECNE chunks 0 output AUTH chunks 0 ip_output error counter Packet drop statistics: 0 from middle box 0 from end host 0 with data 0 non-data, non-endhost 0 non-endhost, bandwidth rep only 0 not enough for chunk header 0 not enough data to confirm 0 where process_chunk_drop said break 0 failed to find TSN 0 attempt reverse TSN lookup 0 e-host confirms zero-rwnd 0 midbox confirms no space 0 data did not match TSN 0 TSN's marked for Fast Retran Timeouts: 5 iterator timers fired 0 T3 data time outs 0 window probe (T3) timers fired 0 INIT timers fired 0 sack timers fired 0 shutdown timers fired 0 heartbeat timers fired 0 a cookie timeout fired 0 an endpoint changed its cookiesecret 0 PMTU timers fired 0 shutdown ack timers fired 0 shutdown guard timers fired 0 stream reset timers fired 0 early FR timers fired 0 an asconf timer fired 0 auto close timer fired 0 asoc free timers expired 0 inp free timers expired 0 packet shorter than header 0 checksum error 0 no endpoint for port 0 bad v-tag 0 bad SID 0 no memory 0 number of multiple FR in a RTT window 0 RFC813 allowed sending 0 RFC813 does not allow sending 0 times max burst prohibited sending 0 look ahead tells us no memory in interface 0 numbers of window probes sent 0 times an output error to clamp down on next user send 0 times sctp_senderrors were caused from a user 0 number of in data drops due to chunk limit reached 0 number of in data drops due to rwnd limit reached 0 times a ECN reduced the cwnd 0 used express lookup via vtag 0 collision in express lookup 0 times the sender ran dry of user data on primary 0 same for above 0 sacks the slow way 0 window update only sacks sent 0 sends with sinfo_flags !=0 0 unordered sends 0 sends with EOF flag set 0 sends with ABORT flag set 0 times protocol drain called 0 times we did a protocol drain 0 times recv was called with peek 0 cached chunks used 0 cached stream oq's used 0 unread messages abandonded by close 0 send burst avoidance, already max burst inflight to net 0 send cwnd full avoidance, already max burst inflight to net 0 number of map array over-runs via fwd-tsn's ip: 935 total packets received 0 bad header checksums 0 with size smaller than minimum 0 with data size < data length 0 with ip length > max ip packet size 0 with header length < data size 0 with data length < header length 0 with bad options 0 with incorrect version number 0 fragments received 0 fragments dropped (dup or out of space) 0 fragments dropped after timeout 0 packets reassembled ok 919 packets for this host 12 packets for unknown/unsupported protocol 0 packets forwarded (0 packets fast forwarded) 4 packets not forwardable 0 packets received for unknown multicast group 0 redirects sent 413 packets sent from this host 28 packets sent with fabricated ip header 0 output packets dropped due to no bufs, etc. 0 output packets discarded due to no route 0 output datagrams fragmented 0 fragments created 0 datagrams that can't be fragmented 0 tunneling packets that can't find gif 0 datagrams with bad address in header icmp: 10 calls to icmp_error 0 errors not generated in response to an icmp message Output histogram: echo reply: 8 destination unreachable: 10 0 messages with bad code fields 0 messages less than the minimum length 0 messages with bad checksum 0 messages with bad length 0 multicast echo requests ignored 0 multicast timestamp requests ignored Input histogram: echo reply: 2 echo: 8 8 message responses generated 0 invalid return addresses 0 no return routes ICMP address mask responses are disabled igmp: 12 messages received 0 messages received with too few bytes 0 messages received with wrong TTL 0 messages received with bad checksum 0 V1/V2 membership queries received 0 V3 membership queries received 0 membership queries received with invalid field(s) 0 general queries received 0 group queries received 0 group-source queries received 0 group-source queries dropped 12 membership reports received 0 membership reports received with invalid field(s) 12 membership reports received for groups to which we belong 0 V3 reports received without Router Alert 2 membership reports sent ip6: 392 total packets received 0 with size smaller than minimum 0 with data size < data length 0 with bad options 0 with incorrect version number 0 fragments received 0 fragments dropped (dup or out of space) 0 fragments dropped after timeout 0 fragments that exceeded limit 0 packets reassembled ok 108 packets for this host 0 packets forwarded 0 packets not forwardable 0 redirects sent 156 packets sent from this host 0 packets sent with fabricated ip header 0 output packets dropped due to no bufs, etc. 0 output packets discarded due to no route 0 output datagrams fragmented 0 fragments created 0 datagrams that can't be fragmented 0 packets that violated scope rules 6 multicast packets which we don't join Input histogram: UDP: 98 ICMP6: 294 Mbuf statistics: 35 one mbuf two or more mbuf: lo0= 24 333 one ext mbuf 0 two or more ext mbuf 0 packets whose headers are not continuous 0 tunneling packets that can't find gif 0 packets discarded because of too many headers 0 failures of source address selection Source addresses selection rule applied: 70 first candidate 5 same address 62 appropriate scope icmp6: 0 calls to icmp6_error 0 errors not generated in response to an icmp6 message 0 errors not generated because of rate limitation Output histogram: echo: 4 echo reply: 26 router solicitation: 3 neighbor solicitation: 8 neighbor advertisement: 55 MLDv2 listener report: 12 0 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length Input histogram: echo: 26 echo reply: 4 router advertisement: 110 neighbor solicitation: 100 neighbor advertisement: 5 redirect: 43 Histogram of error messages to be generated: 0 no route 0 administratively prohibited 0 beyond scope 0 address unreachable 0 port unreachable 0 packet too big 0 time exceed transit 0 time exceed reassembly 0 erroneous header field 0 unrecognized next header 0 unrecognized option 0 redirect 0 unknown 26 message responses generated 0 messages with too many ND options 0 messages with bad ND options 45 bad neighbor solicitation messages 0 bad neighbor advertisement messages 0 bad router solicitation messages 0 bad router advertisement messages 0 bad redirect messages 0 path MTU changes rip6: 0 messages received 0 checksum calculations on inbound 0 messages with bad checksum 0 messages dropped due to no socket 0 multicast messages dropped due to no socket 0 messages dropped due to full socket buffers 0 delivered 0 datagrams output --Apple-Mail-7-876888700 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii --Apple-Mail-7-876888700 Content-Disposition: attachment; filename=netstat2 Content-Type: application/octet-stream; name="netstat2" Content-Transfer-Encoding: 7bit tcp: 261 packets sent 238 data packets (49512 bytes) 6 data packets (432 bytes) retransmitted 1 data packet unnecessarily retransmitted 0 resends initiated by MTU discovery 13 ack-only packets (5 delayed) 0 URG only packets 0 window probe packets 0 window update packets 4 control packets 370 packets received 229 acks (for 49517 bytes) 12 duplicate acks 0 acks for unsent data 130 packets (10535 bytes) received in-sequence 0 completely duplicate packets (0 bytes) 0 old duplicate packets 0 packets with some dup. data (0 bytes duped) 0 out-of-order packets (0 bytes) 0 packets (0 bytes) of data after window 0 window probes 1 window update packet 0 packets received after close 0 discarded for bad checksums 0 discarded for bad header offset fields 0 discarded because packet too short 0 discarded due to memory problems 1 connection request 2 connection accepts 0 bad connection attempts 0 listen queue overflows 0 ignored RSTs in the windows 3 connections established (including accepts) 7 connections closed (including 0 drops) 3 connections updated cached RTT on close 3 connections updated cached RTT variance on close 2 connections updated cached ssthresh on close 0 embryonic connections dropped 229 segments updated rtt (of 155 attempts) 5 retransmit timeouts 0 connections dropped by rexmit timeout 0 persist timeouts 0 connections dropped by persist timeout 0 Connections (fin_wait_2) dropped because of timeout 0 keepalive timeouts 0 keepalive probes sent 0 connections dropped by keepalive 0 correct ACK header predictions 123 correct data packet header predictions 2 syncache entries added 0 retransmitted 1 dupsyn 0 dropped 2 completed 0 bucket overflow 0 cache overflow 0 reset 0 stale 0 aborted 0 badack 0 unreach 0 zone failures 2 cookies sent 0 cookies received 1 SACK recovery episode 1 segment rexmit in SACK recovery episodes 48 byte rexmits in SACK recovery episodes 8 SACK options (SACK blocks) received 0 SACK options (SACK blocks) sent 0 SACK scoreboard overflow 0 packets with ECN CE bit set 0 packets with ECN ECT(0) bit set 0 packets with ECN ECT(1) bit set 0 successful ECN handshakes 0 times ECN reduced the congestion window udp: 647 datagrams received 0 with incomplete header 0 with bad data length field 0 with bad checksum 5 with no checksum 10 dropped due to no socket 231 broadcast/multicast datagrams undelivered 0 dropped due to full socket buffers 0 not for hashed pcb 406 delivered 178 datagrams output 0 times multicast source filter matched sctp: 0 input packets 0 datagrams 0 packets that had data 0 input SACK chunks 0 input DATA chunks 0 duplicate DATA chunks 0 input HB chunks 0 HB-ACK chunks 0 input ECNE chunks 0 input AUTH chunks 0 chunks missing AUTH 0 invalid HMAC ids received 0 invalid secret ids received 0 auth failed 0 fast path receives all one chunk 0 fast path multi-part data 0 output packets 0 output SACKs 0 output DATA chunks 0 retransmitted DATA chunks 0 fast retransmitted DATA chunks 0 FR's that happened more than once to same chunk 0 intput HB chunks 0 output ECNE chunks 0 output AUTH chunks 0 ip_output error counter Packet drop statistics: 0 from middle box 0 from end host 0 with data 0 non-data, non-endhost 0 non-endhost, bandwidth rep only 0 not enough for chunk header 0 not enough data to confirm 0 where process_chunk_drop said break 0 failed to find TSN 0 attempt reverse TSN lookup 0 e-host confirms zero-rwnd 0 midbox confirms no space 0 data did not match TSN 0 TSN's marked for Fast Retran Timeouts: 5 iterator timers fired 0 T3 data time outs 0 window probe (T3) timers fired 0 INIT timers fired 0 sack timers fired 0 shutdown timers fired 0 heartbeat timers fired 0 a cookie timeout fired 0 an endpoint changed its cookiesecret 0 PMTU timers fired 0 shutdown ack timers fired 0 shutdown guard timers fired 0 stream reset timers fired 0 early FR timers fired 0 an asconf timer fired 0 auto close timer fired 0 asoc free timers expired 0 inp free timers expired 0 packet shorter than header 0 checksum error 0 no endpoint for port 0 bad v-tag 0 bad SID 0 no memory 0 number of multiple FR in a RTT window 0 RFC813 allowed sending 0 RFC813 does not allow sending 0 times max burst prohibited sending 0 look ahead tells us no memory in interface 0 numbers of window probes sent 0 times an output error to clamp down on next user send 0 times sctp_senderrors were caused from a user 0 number of in data drops due to chunk limit reached 0 number of in data drops due to rwnd limit reached 0 times a ECN reduced the cwnd 0 used express lookup via vtag 0 collision in express lookup 0 times the sender ran dry of user data on primary 0 same for above 0 sacks the slow way 0 window update only sacks sent 0 sends with sinfo_flags !=0 0 unordered sends 0 sends with EOF flag set 0 sends with ABORT flag set 0 times protocol drain called 0 times we did a protocol drain 0 times recv was called with peek 0 cached chunks used 0 cached stream oq's used 0 unread messages abandonded by close 0 send burst avoidance, already max burst inflight to net 0 send cwnd full avoidance, already max burst inflight to net 0 number of map array over-runs via fwd-tsn's ip: 945 total packets received 0 bad header checksums 0 with size smaller than minimum 0 with data size < data length 0 with ip length > max ip packet size 0 with header length < data size 0 with data length < header length 0 with bad options 0 with incorrect version number 0 fragments received 0 fragments dropped (dup or out of space) 0 fragments dropped after timeout 0 packets reassembled ok 929 packets for this host 12 packets for unknown/unsupported protocol 0 packets forwarded (0 packets fast forwarded) 4 packets not forwardable 0 packets received for unknown multicast group 0 redirects sent 413 packets sent from this host 28 packets sent with fabricated ip header 0 output packets dropped due to no bufs, etc. 0 output packets discarded due to no route 0 output datagrams fragmented 0 fragments created 0 datagrams that can't be fragmented 0 tunneling packets that can't find gif 0 datagrams with bad address in header icmp: 10 calls to icmp_error 0 errors not generated in response to an icmp message Output histogram: echo reply: 8 destination unreachable: 10 0 messages with bad code fields 0 messages less than the minimum length 0 messages with bad checksum 0 messages with bad length 0 multicast echo requests ignored 0 multicast timestamp requests ignored Input histogram: echo reply: 2 echo: 8 8 message responses generated 0 invalid return addresses 0 no return routes ICMP address mask responses are disabled igmp: 12 messages received 0 messages received with too few bytes 0 messages received with wrong TTL 0 messages received with bad checksum 0 V1/V2 membership queries received 0 V3 membership queries received 0 membership queries received with invalid field(s) 0 general queries received 0 group queries received 0 group-source queries received 0 group-source queries dropped 12 membership reports received 0 membership reports received with invalid field(s) 12 membership reports received for groups to which we belong 0 V3 reports received without Router Alert 2 membership reports sent ip6: 412 total packets received 0 with size smaller than minimum 0 with data size < data length 0 with bad options 0 with incorrect version number 0 fragments received 0 fragments dropped (dup or out of space) 0 fragments dropped after timeout 0 fragments that exceeded limit 0 packets reassembled ok 108 packets for this host 0 packets forwarded 0 packets not forwardable 0 redirects sent 167 packets sent from this host 0 packets sent with fabricated ip header 0 output packets dropped due to no bufs, etc. 0 output packets discarded due to no route 0 output datagrams fragmented 0 fragments created 0 datagrams that can't be fragmented 0 packets that violated scope rules 6 multicast packets which we don't join Input histogram: UDP: 98 ICMP6: 314 Mbuf statistics: 35 one mbuf two or more mbuf: lo0= 24 353 one ext mbuf 0 two or more ext mbuf 0 packets whose headers are not continuous 0 tunneling packets that can't find gif 0 packets discarded because of too many headers 0 failures of source address selection Source addresses selection rule applied: 79 first candidate 5 same address 71 appropriate scope icmp6: 0 calls to icmp6_error 0 errors not generated in response to an icmp6 message 0 errors not generated because of rate limitation Output histogram: echo: 4 echo reply: 28 router solicitation: 3 neighbor solicitation: 9 neighbor advertisement: 63 MLDv2 listener report: 12 0 messages with bad code fields 0 messages < minimum length 0 bad checksums 0 messages with bad length Input histogram: echo: 28 echo reply: 4 router advertisement: 110 neighbor solicitation: 111 neighbor advertisement: 6 redirect: 49 Histogram of error messages to be generated: 0 no route 0 administratively prohibited 0 beyond scope 0 address unreachable 0 port unreachable 0 packet too big 0 time exceed transit 0 time exceed reassembly 0 erroneous header field 0 unrecognized next header 0 unrecognized option 0 redirect 0 unknown 28 message responses generated 0 messages with too many ND options 0 messages with bad ND options 48 bad neighbor solicitation messages 0 bad neighbor advertisement messages 0 bad router solicitation messages 0 bad router advertisement messages 0 bad redirect messages 0 path MTU changes rip6: 0 messages received 0 checksum calculations on inbound 0 messages with bad checksum 0 messages dropped due to no socket 0 multicast messages dropped due to no socket 0 messages dropped due to full socket buffers 0 delivered 0 datagrams output --Apple-Mail-7-876888700 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii --Apple-Mail-7-876888700 Content-Disposition: attachment; filename=icmp6.tcpdump Content-Type: application/octet-stream; name="icmp6.tcpdump" Content-Transfer-Encoding: base64 1MOyoQIABAAAAAAAAAAAAPQBAAABAAAAt8MhS0UgAABGAAAARgAAAACgyUUybAAODHSXeIbdYAAA AAAQOj8mEAAoGABAAQIlAP/+8XMFJhAAKBgAQAECoMn//kUybIAA2HoOlAAASyHDtgAOGuC3wyFL YyAAAEYAAABGAAAAAA4MdJd4AKDJRTJsht1gAAAAABA6QCYQACgYAEABAqDJ//5FMmwmEAAoGABA AQIlAP/+8XMFgQDXeg6UAABLIcO2AA4a4LjDIUu8kwgAVgAAAFYAAAAzM/9FMmwAJQDxcwWG3WAA AAAAIDr/JhAAKBgAQAECJQD//vFzBf8CAAAAAAAAAAAAAf9FMmyHAGPyAAAAACYQACgYAEABAqDJ //5FMmwBAQAlAPFzBbjDIUvWkwgAVgAAAFYAAAAADgx0l3gAoMlFMmyG3WAAAAAAIDr/JhAAKBgA 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