Date: Thu, 16 Oct 1997 18:15:48 -0700 (PDT) From: Jamie Lawrence <jal@42is.com> To: freebsd-questions@freebsd.org Subject: routing oddity, redux Message-ID: <199710170115.SAA00520@colonel.42inc.com>
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Hi -
This is a followup on a message sent by someone else earlier today.
We're having problems with out gateway - after setting up a kvm switch
to control multiple machines from one keyboard/monitor pair, the
Freebsd gateway no longer seems to like the internal network. The
problem seems really strange:
The first machine to contact the server can connect, see the
gateway, access any local services, telnet to machines anywhere
on the 'net, etc.
However, when another machine tries to access the gateway, in some
situations neither of them can see the gateway anymore. In other
situations, the original machine still has access. I cannot determine
what the decisive action is that bumps the first one.
I've checked to make sure all the workstations are properly
configured, etc. No configuration changes were make to the FreeBSD box
(running 2.1.7) during the move to the kvm switch. It has been running
fine as a gateway for about 6 or so months previously. I took it off
the kvm switch, and the problem persists, although, I have made a
number of changes to various things in the mean time.
Anyway. Appended are the output of relevent commands... The route get
material seemed interesting to me. "Enterprise" was the first to
contact the server this reboot. "Vegas" is just another workstation.
Any suggestions would be wildly appreciated. Free brownies for
whomever solves the problem (via snailmail, if nessessary).
Thanks much.
-j
Script started on Thu Oct 16 17:26:16 1997
colonel: {1} netstat -r
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
default ts2.emf.net UGc 2 0 ppp0
localhost localhost UH 0 1 lo0
205.149 ts2.emf.net UGc 7 0 ppp0
205.149.2 ts2.emf.net UGc 0 0 ppp0
205.149.5 ts2.emf.net UGc 0 0 ppp0
205.149.7 ts2.emf.net UGc 0 0 ppp0
205.217.32 ts2.emf.net UGc 0 0 ppp0
205.217.44 ts2.emf.net UGc 0 0 ppp0
www/32 link#1 UC 0 0
www.42is.com/32 link#1 UC 0 0
www.thirdwave.com/ link#1 UC 0 0
www.findelvis.com/ link#1 UC 0 0
205.217.45.245/32 link#1 UC 0 0
205.217.45.246/32 link#1 UC 0 0
205.217.45.247/32 link#1 UC 0 0
205.217.45.248/32 link#1 UC 0 0
205.217.45.249/32 link#1 UC 0 0
205.217.45.250/32 link#1 UC 0 0
205.217.45.251/32 link#1 UC 0 0
205.217.45.252/32 link#1 UC 0 0
205.217.45.253/32 link#1 UC 0 0
205.217.45.254/32 link#1 UC 0 0
205.217.46 ts2.emf.net UGc 0 0 ppp0
205.217.47.80/28 205.217.47.82 UGSc 1 3 de0
205.217.47.82 0:0:c0:b4:5b:da UHLW 1 0 lo0
Enterprise link#1 UHRLW 1 23 de0 18
BASE-ADDRESS.MCAST localhost US 0 0 lo0
colonel: {2} ifconfig -a
de0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 205.217.47.82 netmask 0xfffffff0 broadcast 205.217.47.95
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1 netmask 0xff000000
ppp0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
inet 205.217.47.81 --> 205.149.0.6 netmask 0xffffff00
sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552
tun0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
colonel: {3} exit
exit
Script done on Thu Oct 16 17:26:38 1997
Script started on Thu Oct 16 17:23:38 1997
colonel: {1} route get enterprise
route to: Enterprise
destination: Enterprise
interface: de0
flags: <UP,HOST,REJECT,DONE,LLINFO>
recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire
16384 16384 0 0 0 0 1500 2
colonel: {2} route get vegas
route to: vegas
destination: 205.217.47.80
mask: 255.255.255.240
gateway: 205.217.47.82
interface: de0
flags: <UP,GATEWAY,DONE,STATIC>
recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire
16384 16384 0 0 0 0 1500 0
colonel: {3} exit
exit
Script done on Thu Oct 16 17:23:58 1997
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