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Lorenzo Thurman wrote:

> I ran into a problem that I have solved, but it raised a question that I'd
> like to find an answer for:
> 
> I was not able to receive QuickTime or RealAudio broadcasts via UDP. I fixed
> that problem by allowing packets from my DSL modem through my firewall. I
> believe this might be a security problem as a packet spoofing that address
> would also get through. If this is true, can I use the modem's MAC address
> as part of my ruleset and thus reduce the security risk? 

no. iptables can do it but the 2.4 kernel is still in beta.

raf

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