On Sat, Mar 22, 2008 at 11:16 PM, Dan Cowsill <danthehat@(protected):
> Hi folks,
>
> Today I had some really serious problems with my Gentoo router. I
> could ping it, and all the network connections were in place and
> functional, but no outside access. I looked into it and found that
> the syslog was flooded with this:
>
>
> Mar 22 21:25:55 localhost kernel: nf_conntrack: table full, dropping packet.
> Mar 22 21:26:00 localhost kernel: printk: 11 messages suppressed.
> Mar 22 21:26:00 localhost kernel: nf_conntrack: table full, dropping packet.
> Mar 22 21:26:05 localhost kernel: printk: 16 messages suppressed.
>
>
> These messages spanned a full 20 hours of the log. I understand that
> conntrack is the connection tracking system that iptables uses. I
> also understand that its maximum is something on the order of 65000
> simultaneous connections. For a simple home network, I think we can
> agree that I would probably never approach this number of connections
> with normal use.
>
> So my question is this: what could have caused the router's
> connection tracker to overflow?
> --
> Dan Cowsill
> http://www.danthehat.net
> --
> gentoo-user@(protected)
>
>

What type of 'net services do you run between your home network and
the outside? Is there a possibility that someone out have put a denial
of service attack on you?
--
gentoo-user@(protected)