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


-- 
Ugo

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