NAT Dropping Internal Connection

Han Hwei Woo hhwoo at argosy.ca
Fri Jun 27 06:42:44 PDT 2003


Is there any reason you are running both ipfw + ipfilter? Although they
probably should play nice together, it might be best not to tempt fate,
especially when you're experiencing problems. Also, are you using ipnat or
natd to perform NAT?

----- Original Message ----- 
From: "Jeremy Bingham" <jeremy at satanosphere.com>
To: <freebsd-questions at freebsd.org>
Sent: Wednesday, June 25, 2003 4:16 PM
Subject: Re: NAT Dropping Internal Connection

On 25/06/03 14:39 -0400, FBSD_User wrote:
> Sounds like hardware problem with the switch or hub on your LAN.

Rebooting the machine makes the NAT stuff work again. Could the hub
still be a problem in that case?

-j

>
> -----Original Message-----
> From: owner-freebsd-questions at freebsd.org
> [mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Jeremy
> Bingham
> Sent: Wednesday, June 25, 2003 2:25 PM
> To: freebsd-questions at freebsd.org
> Subject: NAT Dropping Internal Connection
>
> I have a P-200 running 4.8-STABLE running as a NAT box at home. It
> runs
> well, except that periodically it will drop it's connection on the
> internal side of the network. The external interface still works,
> but the
> internal machines can't ping the NAT box at all and the NAT box
> can't
> ping the internal machines.
>
> I've looked through the mailing lists and google for hints why this
> might be happening, but I can't find anything. /var/log/messages
> also
> reveals nothing. Here are the relevant kernel options:
>
> options IPFIREWALL
> options IPFIREWALL_FORWARD
> options IPFIREWALL_DEFAULT_TO_ACCEPT
> options IPDIVERT
> options IPFILTER
> options IPSTEALTH
> options RANDOM_IP_ID
> options TCP_DROP_SYNFIN
>
> Would any of those cause the problem, or is there a kernel option
> that
> I'm accidentally leaving off?
>
> Thanks,
>
> -Jeremy Bingham
>
>
> ----------------------------------------------
> /* You are not expected to understand this. */
>
> Captain_Tenille
> http://www.satanosphere.com/
> jeremy at satanosphere.com
>

-- 

----------------------------------------------
/* You are not expected to understand this. */

Captain_Tenille
http://www.satanosphere.com/
jeremy at satanosphere.com




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