[LARTC] Sessionbased traffic on NANO?

Tóth Nándor nug@sch.bme.hu
Tue Feb 1 21:49:22 CET 2005


Hi!

Steen Suder wrote:
> I use the wellknown nano setup (by Christoph Simon) on a few sites with 
> success.
> 
> From time to time a user approaches me with problems that seems to 
> originate from the fact that only trafic to the samt DST IP on the net 
> will get out the same link.
> 
> The problem happens with traffic from applications that contact 
> different IPs in the "same session".
> 
> An example is Anarchy Online, where the the client contacts a new IP 
> during game login and, hence, this traffic gets out over a new link. In 
> that second the game clients connection to the servers are lost.
> 
> There exist other examples, but it's always the same issue.
> 
> I know that this issue has been brought up on several occasions, but I 
> have found no solutions to this "simple" issue.
> 
> Does anyone have suggestions on how to handle this, besides "nailing" 
> the traffic to a specific uplink, based on DST PORT?

,,Nail'' the traffic of the specific user's computer using routing based 
on his/her source ip address (policy routing).

For icq, see my previos post.

I think there is no generally useful solution.

BTW. There are games that let only one player from a private (nat-ed) 
network.

-- 
Udv,
   Nandor



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