Date: Thu, 3 Aug 2000 14:05:13 -0700 (PDT) From: Ben Hacker Jr <strbenjr@yahoo.com> To: list DC-FBSD <fug-washdc@Sytex.Net>, questions FBSD <freebsd-questions@FreeBSD.ORG>, Stable FBSD <freebsd-stable@FreeBSD.ORG> Cc: Ben Hacker Jr <bhacker1@csc.com> Subject: Router "ep2" issue Message-ID: <20000803210513.11627.qmail@web4502.mail.yahoo.com>
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Hello all...
I built a router about six months back and it has been
working pretty good except that sometimes I will lose
connectivity to the subnet on one of the ports (ep2).
I lost connectivity again today and tried to figure
out what
was going wrong. I don't know how to tell if it is
caused
by hardware or my configuration.
10Mb 100Mb
+---------------+
10.44.17.062/27=|ep0 FreeBSD |
10.44.17.126/27=|ep1 Router
xl0|=10.44.25.250/30
10.44.17.222/27=|ep2 |
+---------------+
me@FBSD_Router1$ uname -a
FreeBSD FBSD_Router1 3.4-STABLE FreeBSD 3.4-STABLE #2:
Fri Mar 17 11
:42:33 EST 2000
me@FBSD_Router1:/usr/src/sys/compile/Router1-4 i386
me@FBSD_Router1$
network_interfaces="xl0 ep2 ep1 ep0 lo0"
ifconfig_xl0="inet 10.44.25.250 netmask
255.255.255.252"
ifconfig_ep2="inet 10.44.17.222 netmask
255.255.255.224"
ifconfig_ep1="inet 10.44.17.126 netmask
255.255.255.224"
ifconfig_ep0="inet 10.44.17.62 netmask
255.255.255.224"
defaultrouter="10.44.25.249"
After logging into the router from the ep1 subnet I
tried to ping
out to all the subnets. The results are listed below:
me@FBSD_Router1$ ping 10.44.17.38
PING 10.44.17.38 (10.44.17.38): 56 data bytes
VIA ep0
64 bytes from 10.44.17.38: icmp_seq=0 ttl=128
time=1.114 ms
64 bytes from 10.44.17.38: icmp_seq=1 ttl=128
time=0.645 ms
64 bytes from 10.44.17.38: icmp_seq=2 ttl=128
time=0.594 ms
64 bytes from 10.44.17.38: icmp_seq=3 ttl=128
time=0.596 ms
64 bytes from 10.44.17.38: icmp_seq=4 ttl=128
time=0.617 ms
64 bytes from 10.44.17.38: icmp_seq=5 ttl=128
time=0.611 ms
64 bytes from 10.44.17.38: icmp_seq=6 ttl=128
time=0.613 ms
64 bytes from 10.44.17.38: icmp_seq=7 ttl=128
time=0.608 ms
me@FBSD_Router1$ ping 10.44.17.105
PING 10.44.17.105 (10.44.17.105): 56 data bytes
VIA ep1
64 bytes from 10.44.17.105: icmp_seq=0 ttl=128
time=0.722 ms
64 bytes from 10.44.17.105: icmp_seq=1 ttl=128
time=0.600 ms
64 bytes from 10.44.17.105: icmp_seq=2 ttl=128
time=0.587 ms
64 bytes from 10.44.17.105: icmp_seq=3 ttl=128
time=0.610 ms
64 bytes from 10.44.17.105: icmp_seq=4 ttl=128
time=0.578 ms
me@FBSD_Router1$ ping 10.44.17.200
VIA ep2
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available (Apparently
this is the problem.)
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
me@FBSD_Router1$ ping 10.44.12.150
PING 10.44.12.150 (10.44.12.150): 56 data bytes
VIA xl0
64 bytes from 10.44.12.150: icmp_seq=0 ttl=254
time=1.629 ms
64 bytes from 10.44.12.150: icmp_seq=1 ttl=254
time=1.754 ms
64 bytes from 10.44.12.150: icmp_seq=2 ttl=254
time=1.665 ms
I had found in the past that if I down the adapter ep2
and brought
it back up again the communications would resume so
that is what
the shellscript "updown2" does.
me@FBSD_Router1$ su root -c updown2
Password:
ep2: flags=8c02<BROADCAST,OACTIVE,SIMPLEX,MULTICAST>
mtu 1500
inet 10.44.17.222 netmask 0xffffffe0 broadcast
10.44.17.223
inet 10.54.17.222 netmask 0xffffffe0 broadcast
10.54.17.223
ether 00:a0:24:23:70:cc
ep2:
flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu
1500
inet 10.44.17.222 netmask 0xffffffe0 broadcast
10.44.17.223
inet 10.54.17.222 netmask 0xffffffe0 broadcast
10.54.17.223
ether 00:a0:24:23:70:cc
Once I bring the adapter down and back up again it
apparently
functions fine (for a while at least. See below.)
What should I
do now??
Replace the adapter?
Make some configuration change for that adapter in my
Kernel?
Update to v3.5? (The last time I cvsup'ed was prior
to the
router going online for real work.)
Or... What other config file do you want to see?
me@FBSD_Router1$ ping 10.44.17.200
PING 10.44.17.200 (10.44.17.200): 56 data bytes
VIA ep2
64 bytes from 10.44.17.200: icmp_seq=0 ttl=128
time=0.641 ms
64 bytes from 10.44.17.200: icmp_seq=1 ttl=128
time=0.588 ms
64 bytes from 10.44.17.200: icmp_seq=2 ttl=128
time=0.568 ms
64 bytes from 10.44.17.200: icmp_seq=3 ttl=128
time=0.591 ms
64 bytes from 10.44.17.200: icmp_seq=4 ttl=128
time=0.575 ms
64 bytes from 10.44.17.200: icmp_seq=5 ttl=128
time=0.566 ms
^C
--- 10.44.17.200 ping statistics ---
6 packets transmitted, 6 packets received, 0% packet
loss
round-trip min/avg/max/stddev =
0.566/0.588/0.641/0.025 ms
me@FBSD_Router1$
=====
-=*=- -=*=- -=*=- -=*=- -=*=- -=*=- -=*=- -=*=- -=*=-
Ben Hacker Jr Technical Specialist
Computer Sciences Corporation
(703) 289-3477 MC 291
bhacker1@csc.com 3170 Fairview Park Drive
strben@altavista.com Falls Church, VA 22304
-=*=- -=*=- -=*=- -=*=- -=*=- -=*=- -=*=- -=*=- -=*=-
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