On 7. 11. 2009 19:07, Jason wrote:
Have you tried restarting routing?
/etc/rc.d/routing restart
I have found the same symptoms with other outages and not performing the
above.
I have done "/etc/rc.d/netif restart" and "/etc/rc.d/routing restart".
Wtih using these commands, I have found this to be successful in
restoring
network interfaces communication, without having to reboot.
Hope this helps.
On Sat, Nov 07, 2009 at 03:05:40PM +0100, umage thus spake:
Hello. I have had 3 network outages this week, and everytime it
happened, I found that my freebsd8rc1 machine/router was unable to
communicate over the WAN interface even after the outages ended. A
reboot helps, but that's not an acceptable solution.
The symptoms are very weird: even though dhclient successfully
receives a dhcp lease and sets up the interface, I am unable to ping
the gateway. The ifconfig utility says the interface is up and
configured correctly; netstat -arn says routes are set up as they
should be; and tcpdump reports random network traffic arriving on the
interface (so the network itself is up and running). Taking the
interface down and back up doesn't help, reloading ipfw rules doesn't
help.
I have some more things to test - whether tcpdump reports any
attempts at outgoing traffic, and whether disconnecting/reconnecting
the network cable will do anything. And maybe reverting ipfw rules to
what I've been using before. Other than this, I have no idea what
else to do...
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Thank you for the hint, I will try it when this happens again.
Note: the output of netstat -r was identical to what it is currently...
FYI: I've been using freebsd 6.2 -> 7.2 until now, and I never had to
intervene - the system resumed networking as usual. It might have
something to do with migrating to 8rc1 (most likely not), or that I'm
now using DHCP and there's a glitch somewhere (maybe).
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