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From the internal eth0 int, i can access eth2 and eth3 - eth1 can access eth2 and eth3 and the DMZ(eth3) can only access eth2.
All the rules is already setup, but i have a minor problem with my nat.
The DMZ zone, where i have my mail, web, dns, etc servers, all this servers has a public ip, and it works fine. But when one of this servers access the internet via eth2, the servers own public ip is not shown.
The ip addy that is shown is the ip from eth2. This is not good when a DNS server connects to another DNS and wants to do an axfr, and the axfr security is setup on the servers IPs.
So, how do i get the DMZs servers IPs to be shown on the internet? Is there a nat rule that needed to be inserted once or for each ip?
Well, i must say:
Give the man a cigar
It works - tanx man...
Now i just have one more thing.
The internal eth0 172.16.0.0 network connects to the internet via eth2(gateway) and is shown on the internet with the ip addy of eth2.
If there a way to make the internal network eth0 public shown by an ip from the DMZ(eth3) or the DMZ(eth3's) ip addy, so it would not use the ip on eth2.
I have a similar problem, would be glad if someone could help me, sorry for posting this as a reply, but you 2 seem obivous choices for this subject, so here goes:
masq'ing eth1 through eth0 works great, however no traffic is masq'd from eth3 through eth2. I can ping eth3 boxes from eth2, however no eth3 box gets out. This may have something to do with the default gateway on my box, but I dont know. My Q is, how do I get eth3 + eth2 runnin the same as eth1 + eth0 ? do I somehow need to route eth3 through eth0 ?