Re: Re: ipchains / help

["louie miranda" <louie@noc.chikka.com>]

Hey i got it working, thnx!


louie...


----- Original Message -----
From: "Jens Schuessler" <jgs@trash.net>
To: <debian-firewall@lists.debian.org>
Sent: Tuesday, June 04, 2002 7:38 PM
Subject: Re: Re: ipchains / help


> * louie miranda <louie@noc.chikka.com> [04-06-02 07:32]:
> > Chain input (policy ACCEPT):
> > target     prot opt     source                destination
ports
>
> First of all you should set the policy to DENY or REJECT and then
> permit only the protocols that you need. Then read something about
> the different ICMP types.
> For example:
> To ping a host on the outside you have to accept outgoing ICMP packets
type 8:
>
> ipchains -A output -i $external interface -p icmp --icmp-type  8 -j ACCEPT
>
> To receive an answer to your echo request permit type 0 "echo reply":
>
> ipchains -A input  -i $external interface -p icmp --icmp-type  0 -j ACCEPT
>
> Jens
>
>
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