Hi all, I have a routing problem that I can't understand.
I have firewall equipped with OpenBSD 4.3. On this machine i have 3 nic: nic A: 89.96.AA.xx/28 nic B: 89.96.BB.xx/29 nic C: 10.1.1.0/24 As you can read, nic A and nic B are on different and separate subnets. I've put on /etc/mygate the address of the ISP's router, that is in the same subnet of A. I have pf configured to nat ALL traffic generated inside the DMZ (from nic C) on a couple of addresses active on nic A. Now here comes the problem: I have to route addressed for an external subnet (89.97.xx.xx). I expected that this traffic was passing through nic A because of the default route, but it exits from nic B instead. I have take a look to netstat -rn and I found out that a route for that address appears magically on nic B (with flags UHLc). If I delete it with "route delete" and than I make traffic again, the route appears again. Why? For the moment, I played for time with a static route, but this is unaccetable for me (at least without a reason!). Thank you in advance.
