IPTables limits?

[Karl Pearson <karlp ourldsfamily com>]

I'm curious if there's a limit on how many iptables entries it takes to 
hammer a system. Okay, a better question: When am I running the risk of 
messing up my IP traffic if I add DROP entries in the INPUT rule of 
iptables?

The machine in question acts as a small gateway for one subnet behind a 
Smoothwall 3.0 gateway that is the gateway for it and the rest of the 
network.

The machine is a single core AMD 64 3200+ with 2GB of ram running 32-bit 
Fedora 8.

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 _/   _/ arl _/_/_/  _/ earson    KarlP ourldsfamily com
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