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 From:  "Philippe Lang" <philippe dot lang at attiksystem dot ch>
 To:  "Ugo Bellavance" <ugob at camo dash route dot com>, <m0n0wall at lists dot m0n0 dot ch>
 Subject:  RE: [m0n0wall] Re: DCC protocol support in M0n0wall?
 Date:  Fri, 26 Aug 2005 18:03:30 +0200

Yes, everything is opened outgoing. But I'm not using 1:1 NAT like you. I'm doing port forwarding.
(Inbound/Server NAT in M0n0wall) Does that have an effect maybe?

-----Message d'origine-----
De : news [mailto:news at sea dot gmane dot org] De la part de Ugo Bellavance
Envoyé : vendredi, 26. août 2005 17:44
À : m0n0wall at lists dot m0n0 dot ch
Objet : [m0n0wall] Re: DCC protocol support in M0n0wall?

Philippe Lang wrote:
> Hi,
> After replacing my firewall with a M0n0wall, I noticed errors in 
> /var/maillog regarding a protocol used by Spamassin: DCC. It's used 
> here for exchanging checksums of spam.
> Apparently, the DCC protocol has the same problem as active FTP, when 
> going through NAT: it requires some support in the firewall, like a 
> module or a proxy.
> Which nat-unfriendly protocol does the M0n0wall support? Is there a 
> way of telling him about DCC maybe?

I don't have any problems with DCC on my MailScanner/SpamAssassin server that is behind a m0n0wall
(1-to-1 NAT).

Did you open port 6277 UDP outgoing?

> ----------------------------------
> Philippe Lang
> Attik System
> rte de la Fonderie 2
> 1700 Fribourg
> Switzerland
> http://www.attiksystem.ch
> Tel:   +41 (26) 422 13 75 
> Fax:   +41 (26) 422 13 76
> GSM:   +41 (79) 351 49 94
> Email: philippe dot lang at attiksystem dot ch
> Skype: philippe.lang


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