Re: 2.4.20: MASQ firewall is losing TCP sessions [tcpdumped]

From: Martin Josefsson (
Date: Sun Jun 15 2003 - 13:36:57 EST

On Sun, 2003-06-15 at 19:55, insecure wrote:

> Looks like firewall forgot about our connection. What's going on?
> Kernel: 2.4.20, .config is at the end of this mail.

Kernel 2.4.20 has a very serious problem with ip_conntrack.
It has been corrected in 2.4.21 so please upgrade.

> I'd be happy to provide more info on known connections and the like,
> but I failed to find an iptables equivalent of ipchains -M. :(

cat /proc/net/ip_conntrack

Upgrade to 2.4.21, if that doesn't work you can provide more info.

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This archive was generated by hypermail 2b29 : Sun Jun 15 2003 - 22:00:43 EST