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Re: 2.8 ipfilter traceroute broken?
- To: misc_(_at_)_openbsd_(_dot_)_org
- Subject: Re: 2.8 ipfilter traceroute broken?
- From: Rémi Guyomarch <rguyom_(_at_)_pobox_(_dot_)_com>
- Date: Tue, 5 Dec 2000 07:22:04 +0100
On Mon, Dec 04, 2000 at 06:15:21PM +0100, Peter Hoelsken wrote:
> I just upgraded from OpenBSD 2.7 to 2.8 and it seems to me that a traceroute
> running through an Interface which does NAT is broken. If I do a tcpdump on
> the external interface I can see the icmp ttl exceeded packets coming in,
> however they don't get translated and forwarded towards the internal host.
> Internal <--->fxp0 OpenBSD xl0<---> Internet
Can you post the tcpdumps on both interface while you are tracerouting
from one of your internal hosts ?
Also, you have enabled ip forwarding (ie routing) on the obsd box,