However, the absence of ipfilters / iptables means, the gateways really have no history information and no control over who is having access to either of its interfaces.
If I mounted my gateway's /net onto my machine, I would expect that the gateway would do no extra filtering on my connections than it did on any of its own connections. That's a feature, not a bug. Am I misunderstanding what you're saying?
Rahul Murmuria
Tim Newsham | www.thenewsh.com/~newsham | thenewsh.blogspot.com