A stupid question...

[Greg Panula]

Edoardo Causarano wrote:
> 
> su-2.05a# ping 192.168.1.1
> PING 192.168.1.1 (192.168.1.1): 56 data bytes
> ping: sendto: No route to host
> ping: sendto: No route to host
> ^C
> --- 192.168.1.1 ping statistics ---
> 2 packets transmitted, 0 packets received, 100% packet
> 
> rl1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
>          inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
>          inet6 fe80::2c0:26ff:fea3:4f97%rl1 prefixlen 64 scopeid 0x2
>          ether 00:c0:26:a3:4f:97
>          media: Ethernet autoselect (100baseTX <full-duplex>)
>          status: active
> 
> I can't ping my own interfaces (there's alsto an external one) and even
> postfix can't find a route to hit itself on the external iface. I'm a
> bit lost on this, what have I done wrong? Also, I don't know if it's
> related but the machine (you've guessed it... mailserver & fw/gw)
> sometimes becomes unresponsive on one of the two rl's and the only
> solution is to reboot. Anyone has some hints for me?

Confirm routing tabling is still kosher... 'netstat -rn'
Check network buffers... 'netstat -m'
Check your logs(e.g. /var/log/messages) for any interesting messages...
maybe something related to rl1 losing connectivity, buffer space, etc.

good luck,
  greg