That's what I though, but it is not being translated. The thing is: I'm doing a DNAT Prerouting to reach the server, because originally the trap is going to my linux box. Then I have to do a SNAT Postrouting to change the source Ip Address of the Network Element that generates the trap, one by one. So, Which NAT the "ip_nat_snmp_basic" module is going to translate in the packet payload? Anyway I can see the ip_nat_snmp_basic.ko as compiled in the netfilter kernel, so I though that it was going to work. Regards, Pablo. -----Mensaje original----- De: netfilter-bounces@xxxxxxxxxxxxxxxxxxx [mailto:netfilter-bounces@xxxxxxxxxxxxxxxxxxx] En nombre de Jason Opperisano Enviado el: viernes, 11 de febrero de 2005 14:50 Para: netfilter@xxxxxxxxxxxxxxxxxxx Asunto: Re: Snmp alg On Thu, 2005-02-10 at 11:46, pablo.1.munoz@xxxxxx wrote: > Hi all, I have a linux Fedora Core 3 (Kernel 2.6.9-1.667) and I'm > doing several NATs for different traps generated by several > equipments. > > I want to translate also in the payload of the packet the agent > address which is the source address. > > I have read the rfc2962 about that, but I want to know how can I > implement this with my linux with netfilter support, where I'm doing > all the NATs. is the "ip_nat_snmp_basic" module not sufficient for this? -j -- "I'll leave the world the same way I came into it - dirty, screaming and torn away from the woman I love." --The Simpsons