Dear All, Actually the vendor would like to change the DNS entry sometimes. It needs to be dynamic, if I hard code the address in the DNS or in the /etc/hosts file, it means that if the vendor change the adddress, then the system won't work anymore. Thank you, -----Original Message----- From: Chris Larson [SMTP:[EMAIL PROTECTED]] Sent: Wednesday, August 09, 2000 11:01 PM To: 'Cisco Wave'; Cisco Group Study Subject: RE: NAT on DNS replies ONLY Why don't you just add a DNS entry for those systems on your inside DNS so that it replies with the address instead of asking the external dns? It will still ask the external DNS for any other entries is does not have in it's table. -----Original Message----- From: Cisco Wave [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 09, 2000 1:37 AM To: Cisco Group Study Subject: NAT on DNS replies ONLY Dear All, I would like to know if it is possible to NAT only the payload of DNS queries. I know it is possible to NAT the payload and the IP header will be NATed at the same time, like explained in : http://www.cisco.com/warp/public/556/3.html However, waht I would like to do is much basic, but I could not find if it will work or not. Basically, I have a UNIX 'hostA' inside making a DNS query to resolve a name 'nameA'. The internal DNS gets the information from an external DNS and forward it back to the inside hostA. However, the IP matching 'nameA' is an internet IP that is not routed inside. Which means that 'hostA' can not communicate with 'nameA' 's IP address ... What I would like to do, is not to change the routing, and not top translate any addresses in headers because it is working fine like this, I just need to translate the payload of the DNS reply from the DNS server (ie changing from nameA<->IPexternal to nameA<->IPtranslated2internal). Please let me know if you know an answer, or have some URL explaining the process. Thank you for your help, ===== We are NOT Cisco Inc. __________________________________________________ Do You Yahoo!? Kick off your party with Yahoo! Invites. http://invites.yahoo.com/ ___________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
