Date: Mon, 29 Sep 1997 23:26:02 -0700 (PDT) From: Annelise Anderson <andrsn@leland.Stanford.EDU> To: freebsd-questions@freebsd.org Subject: Network Connection Not Working Message-ID: <Pine.GSO.3.96.970929231230.3884A-100000@elaine24.Stanford.EDU>
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Some time after I left the office today my computer lost its ability
to talk to the outside world--I can dial in to it but can't ping
anything, I'm not getting mail, can't telnet, etc. (So this is
being written from a different e-mail account.)
I tried quite a few things--reinstating resolv.conf although I'd
moved it when I set up the cache only nameserver (with forwarders);
rebooting; killing routed -s and later restarting it. Everthing seems
to be running--httpd, sendmail, named, etc. So here is some output--
my current guess is that wire that goes from the Ethernet card
connector (10-Base-2) is broken--does this look consistent with that?
And if so, do I just cut it and reattach it?
Thanks for your help....
Annelise
Relevant parts of /var/log/messages (I rebooted) look like this:
Sep 29 20:03:49 andrsn /kernel: 1 3C5x9 board(s) on ISA found at 0x300
Sep 29 20:03:49 andrsn /kernel: ep0 at 0x300-0x30f irq 10 on isa
Sep 29 20:03:49 andrsn /kernel: ep0: aui/utp/bnc[*BNC*] address 00:20:af:be:eb:e0
Sep 29 20:03:50 andrsn named[92]: starting. named 4.9.6-REL Fri Sep 5 16:37:03 PDT 1997 andrsn@andrsn.stanford.edu:/usr/obj/usr/src/usr.sbin/named
Sep 29 20:03:50 andrsn named[93]: Ready to answer queries.
Sep 29 20:04:04 andrsn routed[67]: sendto(ep0, 224.0.0.1): No route to host
Sep 29 20:04:20 andrsn routed[67]: sendto(ep0, 224.0.0.1): No route to host
Sep 29 20:07:41 andrsn routed[67]: ignore RTM_ADD without gateway
Sep 29 20:12:57 andrsn routed[67]: sendto(ep0, 224.0.0.1): No route to host
Sep 29 20:16:07 andrsn routed[67]: interface ep0 to 36.33.0.163 broken: in=0 ierr=0 out=3 oerr=3
Sep 29 20:16:27 andrsn routed[67]: interface ep0 to 36.33.0.163 restored
Sep 29 20:16:46 andrsn routed[67]: sendto(ep0, 224.0.0.1): No route to host
Sep 29 20:17:03 andrsn routed[67]: sendto(ep0, 224.0.0.1): No route to host
Sep 29 20:19:26 andrsn routed[67]: interface ep0 to 36.33.0.163 broken: in=0 ierr=0 out=1 oerr=1
Sep 29 20:19:41 andrsn routed[67]: interface ep0 to 36.33.0.163 restored
Sep 29 20:38:28 andrsn routed[67]: sendto(ep0, 224.0.0.1): No route to host
The network before looked like this:
>From root@andrsn.stanford.edu Mon Sep 29 22:18:41 1997
Date: Mon, 29 Sep 1997 02:00:01 -0700 (PDT)
From: "A. Anderson" <root@andrsn.stanford.edu>
Subject: andrsn daily run output
network:
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
lp0* 1500 <Link> 0 0 0 0 0
ep0 1500 <Link> 00.20.af.be.eb.e0 4675592 812 523700 1 0
ep0 1500 36.33/16 andrsn 4675592 812 523700 1 0
tun0* 1500 <Link> 210 0 167 0 0
sl0* 552 <Link> 0 0 0 0 0
sl1* 552 <Link> 0 0 0 0 0
ppp0* 1500 <Link> 540 15 481 0 0
lo0 16384 <Link> 193928 0 193928 0 0
lo0 16384 your-net localhost 193928 0 193928 0 0
It looks similar now (netstat -in)--but lots of collisions and errors.
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
lp0* 1500 <Link> 0 0 0 0 0
ep0 1500 <Link> 00.20.af.be.eb.e0 282 0 1126 836 836
ep0 1500 36.33/16 36.33.0.163 282 0 1126 836 836
tun0* 1500 <Link> 0 0 0 0 0
sl0* 552 <Link> 0 0 0 0 0
sl1* 552 <Link> 0 0 0 0 0
ppp0* 1500 <Link> 0 0 0 0 0
lo0 16384 <Link> 203 0 203 0 0
lo0 16384 127 127.0.0.1 203 0 203 0 0
Routing tables (when it was working)
Internet:
Destination Gateway Flags Refs Use Netif Expire
default 36.33.0.1 UGSc 13 28 ep0
36.33/16 link#2 UCc 0 0
36.33.0.1 link#2 UHLW 13 0
36.33.0.157/32 0:20:af:be:eb:e0 ULS2c 0 0 ep0
36.33.0.163 0:20:af:be:eb:e0 UHLW 0 148 lo0
127.0.0.1 127.0.0.1 UH 0 55 lo0
Routing tables after it quit working are identical except for a fer numbers:
Internet:
Destination Gateway Flags Refs Use Netif Expire
default 36.33.0.1 UGSc 14 38 ep0
36.33/16 link#2 UCc 0 0
36.33.0.1 link#2 UHLW 13 0
36.33.0.157/32 0:20:af:be:eb:e0 ULS2c 0 0 ep0
36.33.0.163 0:20:af:be:eb:e0 UHLW 1 161 lo0
127.0.0.1 127.0.0.1 UH 1 93 lo0
19 10:37pm ~ # ifconfig -au
ep0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 36.33.0.163 netmask 0xffff0000 broadcast 36.33.255.255
ether 00:20:af:be:eb:e0
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1 netmask 0xff000000
The right stuff seems to be up--
I'm not sure if netstat -a contains useful information or not:
20 10:37pm ~ # netstat -a
Active Internet connections (including servers)
Proto Recv-Q Send-Q Local Address Foreign Address (state)
tcp 0 0 *.http *.* LISTEN
tcp 0 0 *.55556 *.* LISTEN
tcp 0 0 *.5556 *.* LISTEN
tcp 0 0 *.smtp *.* LISTEN
tcp 0 0 *.pop3 *.* LISTEN
tcp 0 0 *.rkinit *.* LISTEN
tcp 0 0 *.printer *.* LISTEN
tcp 0 0 *.kshell *.* LISTEN
tcp 0 0 *.eklogin *.* LISTEN
tcp 0 0 *.klogin *.* LISTEN
tcp 0 0 *.time *.* LISTEN
tcp 0 0 *.daytime *.* LISTEN
tcp 0 0 *.chargen *.* LISTEN
tcp 0 0 *.discard *.* LISTEN
tcp 0 0 *.echo *.* LISTEN
tcp 0 0 *.ident *.* LISTEN
tcp 0 0 *.finger *.* LISTEN
tcp 0 0 *.uucp *.* LISTEN
tcp 0 0 *.login *.* LISTEN
tcp 0 0 *.cmd *.* LISTEN
tcp 0 0 *.telnet *.* LISTEN
tcp 0 0 *.ftp *.* LISTEN
tcp 0 0 *.sunrpc *.* LISTEN
tcp 0 0 *.domain *.* LISTEN
udp 0 0 andrsn.1288 andrsn.domain
udp 0 0 *.router *.*
udp 0 0 *.55555 *.*
udp 0 0 *.rplay *.*
udp 0 0 *.discard *.*
udp 0 0 *.ntalk *.*
udp 0 0 *.biff *.*
udp 0 0 *.sunrpc *.*
udp 0 0 *.domain *.*
udp 0 0 localhost.domain *.*
udp 0 0 andrsn.domain *.*
udp 0 0 *.syslog *.*
Active UNIX domain sockets
Address Type Recv-Q Send-Q Inode Conn Refs Nextref Addr
f07aa200 dgram 0 0 0 f04ebb14 0 f04eb694
f07add00 dgram 0 0 0 f04ebb14 0 f04eb814
f07a6a00 stream 0 0 f07a7d80 0 0 0 /var/run/printer
f07a4500 dgram 0 0 0 f04ebb14 0 f04eb994
f07a2e00 dgram 0 0 0 f04ebb14 0 f04eba14
f0795d00 dgram 0 0 0 f04ebb14 0 0
f078f000 dgram 0 0 f0790680 0 f04eb914 0 /var/run/log
--
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