Re: [SLUG] Firewalling and Optus@Home

[Jamie Honan]

> As some of you have discovered, tcp wrappers is not sufficient to
> prevent Optus from thinking you're running a server.  This is because
> inetd accepts the connection, then works out if access is allowed, and
> closes the connection if not.  Optus merely detect the connection
> establishment.

Rather like rattling a stranger's front door to see if it is
locked? A little impolite, I would think.

(Surely optus' concern is bandwidth overutilisation. Wouldn't
it be more useful for them to look at extravagent upstream traffic
patterns and then investigate?)

Thanks for this John.

One question. Say you didn't want to have two network cards,
but you still wanted to have masquerade for your local
net.

Has anyone tried to use ip aliasing on the eth0 interface
to achieve this? I guess this might be tricky with dhcp.

Jamie

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