Date: Tue, 13 Feb 2007 14:03:56 -0500 From: Matthew Pope <mpope@teksavvy.com> To: freebsd-questions@freebsd.org Subject: Re: Connection timed out Message-ID: <45D20B9C.8080602@teksavvy.com> In-Reply-To: <448xf3hw0f.fsf@be-well.ilk.org> References: <45CF9010.7040905@teksavvy.com> <448xf3hw0f.fsf@be-well.ilk.org>
next in thread | previous in thread | raw e-mail | index | archive | help
I find that during the blocking behaviour, when I try and ping the windows box, a tcpdump shows that each second ping attempt is followed by a response (it appears) from an IPv6 address (10.1.1.99 is the freebsd host): Virtual terminal 1: $ tcpdump > tcpdump.out Virtual terminal 2: $ ping 10.1.1.173 [my win2K box, named mpworkstation] Virtual terminal 1: $ CTRL-C Virtual terminal 1: $ cat tcpdump.out 13:30:51.066625 802.1d config 8000.00:30:19:53:05:00.8011 root 8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15 13:30:53.069431 802.1d config 8000.00:30:19:53:05:00.8011 root 8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15 13:30:53.778918 IP 10.1.1.99 > mpworkstation: ICMP echo request, id 25361, seq 0, length 64 13:30:54.712093 IP 10.1.1.99.domain > blackhole-1.iana.org.domain: 39723 [1au] PTR? 99.1.1.10.in-addr.arpa. (51) 13:30:54.779708 IP 10.1.1.99 > mpworkstation: ICMP echo request, id 25361, seq 1, length 64 13:30:54.803586 arp who-has 10.1.1.2 tell 10.1.1.119 13:30:54.840818 IP blackhole-1.iana.org.domain > 10.1.1.99.domain: 39723 NXDomain* 0/1/1 (128) 13:30:55.072256 802.1d config 8000.00:30:19:53:05:00.8011 root 8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15 13:30:55.780687 IP 10.1.1.99 > mpworkstation: ICMP echo request, id 25361, seq 2, length 64 13:30:55.841542 IP 10.1.1.99.domain > blackhole-2.iana.org.domain: 1862 [1au] PTR? 2.1.1.10.in-addr.arpa. (50) 13:30:55.970699 IP blackhole-2.iana.org.domain > 10.1.1.99.domain: 1862 NXDomain* 0/1/1 (127) 13:30:55.971365 IP 10.1.1.99.domain > blackhole-1.iana.org.domain: 16894 [1au] PTR? 119.1.1.10.in-addr.arpa. (52) 13:30:56.099288 IP blackhole-1.iana.org.domain > 10.1.1.99.domain: 16894 NXDomain* 0/1/1 (129) 13:30:56.781666 IP 10.1.1.99 > mpworkstation: ICMP echo request, id 25361, seq 3, length 64 13:30:57.075128 802.1d config 8000.00:30:19:53:05:00.8011 root 8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15 13:30:57.778934 IP 192.168.1.108.netbios-dgm > 192.168.1.255.netbios-dgm: NBT UDP PACKET(138) 13:30:57.779300 IP 10.1.1.108.netbios-dgm > 10.1.1.255.netbios-dgm: NBT UDP PACKET(138) 13:30:57.782640 IP 10.1.1.99 > mpworkstation: ICMP echo request, id 25361, seq 4, length 64 13:30:58.099166 IP 10.1.1.99.domain > epazote.arin.net.domain: 41215 [1au] PTR? 255.1.168.192.in-addr.arpa. (55) 13:30:58.783615 IP 10.1.1.99 > mpworkstation: ICMP echo request, id 25361, seq 5, length 64 13:30:59.077884 802.1d config 8000.00:30:19:53:05:00.8011 root 8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15 13:30:59.784593 IP 10.1.1.99 > mpworkstation: ICMP echo request, id 25361, seq 6, length 64 13:31:00.099647 IP 10.1.1.99.domain > c3.NSTLD.COM.domain: 18950 [1au] PTR? 255.1.168.192.in-addr.arpa. (55) 13:31:00.174654 IP c3.NSTLD.COM.domain > 10.1.1.99.domain: 18950- 0/2/1 (115) 13:31:00.174865 IP 10.1.1.99.domain > blackhole-2.iana.org.domain: 21147 [1au] PTR? 255.1.168.192.in-addr.arpa. (55) 13:31:00.302542 IP blackhole-2.iana.org.domain > 10.1.1.99.domain: 21147 NXDomain* 0/1/1 (132) 13:31:00.303203 IP 10.1.1.99.domain > blackhole-1.iana.org.domain: 15742 [1au] PTR? 108.1.168.192.in-addr.arpa. (55) 13:31:00.424762 IP blackhole-1.iana.org.domain > 10.1.1.99.domain: 15742 NXDomain* 0/1/1 (132) 13:31:00.425485 IP 10.1.1.99.domain > blackhole-2.iana.org.domain: 36677 [1au] PTR? 255.1.1.10.in-addr.arpa. (52) 13:31:00.539310 IP blackhole-2.iana.org.domain > 10.1.1.99.domain: 36677 NXDomain* 0/1/1 (129) 13:31:00.539955 IP 10.1.1.99.domain > blackhole-1.iana.org.domain: 34458 [1au] PTR? 108.1.1.10.in-addr.arpa. (52) 13:31:00.653398 IP blackhole-1.iana.org.domain > 10.1.1.99.domain: 34458 NXDomain* 0/1/1 (129) 13:31:00.785569 IP 10.1.1.99 > mpworkstation: ICMP echo request, id 25361, seq 7, length 64 13:31:01.081370 802.1d config 8000.00:30:19:53:05:00.8011 root 8000.00:30:19:53:05:00 pathcost 0 age 0 max 20 hello 2 fdelay 15 Lowell Gilbert wrote: >Matthew Pope <mpope@teksavvy.com> writes: > > > >>I am trying to resolve a connection timed out problem. The problem >>occurs when I attempt to ssh, or http to my freebsd host from my >>windows (2K) box. About 3/4 of the time I get a "Connection timed >>out" when I attempt to ssh into the freebsd host. >>Coincident with this behaviour, I can not ping my windows box from the >>freebsd host, and when I try I get no packets returned. >> >>Meanwhile, the freebsd box at no time has any problems pinging google, >>only the local network. I recall having a sockets timeout variable or >>something that needed tuning when I ran freebsd as a http / ssh server >>before . Can someone provide a hint as to how I can resolve this? >>Thanks, >>Matthew >> >>-bash-2.05b$ uname -a >>FreeBSD ns.mbpesecurity.com 6.1-RELEASE-p10 FreeBSD 6.1-RELEASE-p10 >>#0: Mon Oct 23 00:47:22 EDT 2006 root@ns.mbpesec >>urity.com:/usr/obj/usr/src/sys/MPKERNEL i386 >> >> > >Does the FreeBSD box access the Internet through the same link as it >reaches the Windows machine? [I'm guessing not, but you didn't say.] > > > Yes, both are plugged into the same router/switch, a Cisco Catalyst 2900. >Is there anything in the logs or on the console? > The logs do not show anything related, however a tcpdump during the ping does show something, see above. >Does the link light >stay on for the FreeBSD machine? > > The network adaptor link light appears broken as it is always off. >_______________________________________________ >freebsd-questions@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-questions >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > > >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?45D20B9C.8080602>