Redirecting ports & DHCP Question
Hello folks.
I have set up a bridging firewall using iptables (2.4.19) and have a
quick couple of questions.
Before I ask my questions I just feel the need to say that the bridging
and firewalling code (in this case I mean when the two are used
together) has matured quite nicely. I set up a firewall a year or two
ago using 2.2.X/ipchains with brcfg, which at the time seemed a bit
like black magic. :)
Anyway, the first question is I have a Squid Proxy server running on
port 13001 doing some caching/filtering. I was wondering, if it's
possible to just have my firewall redirect port 80 to port 13001? It
seems posable, but browsing the man page I didn't find anything that
jumped out at me (well there was some NAT stuff, but this isn't a NAT).
The other question is one that I'm just having trouble tracking down
ports on. We get our IPs via DHCP from a server outside our network
and there for out side the firewall. I can't seem to be able to open
up the holes I need to let the DHCP request/responses flow through.
What I have done is open up port 67 & 68 to 0/0, I think that's the
first part of the equation, but I'm not sure what the second is. I'm
going to keep wading through the DHCP documentation, but if some who
has been there and done that would be so kind...
Thanks,
Matt
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