PIX and Dynamic Updating DNS zones

[genghiskhan]

How does PIX know, which is primary dns server for dynamic updating? We will be replacing the existing dns servers soon, and I am interested in the process the PIX uses to find the primary dns server.

Thanks,

Roger

[mostiguy]

PIX are almost completely DNS UNaware. They do not know anything about zones, primaries or secondaries

[genghiskhan]

This may be true. BUT...

The situation that we have is thus. We have 2 dns servers on vms running bind 4.x. We have a portion of a class c for NAT for internal hosts connectivity.

There is a zone file on the dns server for this class c. This zone file gets updated by the PIX (at least I assume so) with the NATed ip address.

The dns entry looks similar to this 240.192.168.192.in-addr.arpa. IN PTR host240.my.domain.

Each host that gets assigned a NAT address, also has an entry in this dns zone file. Though the host name is not the real host name.

I don't suppose this a real necessity, but it might in a certain instance. Then again maybe not!

Thanks for the answer!

Rgoer

[genghiskhan]

Scratch that! I have learned that a previous administrator back in the beginning had entered this info manually.

Thanks!

Roger