Forum Discussion
TJ_Vreugdenhil
Cirrus
Jan 09, 2019Reply with External DNS IP's with Internal LTM VIP's
Hi everyone -
Environment:
* F5 LTM VE (has only Internal LTM VIP's (RFC 1918)
* F5 DNS VE (Has internal and DMZ access only to LTM)
* Upstream Firewall that NAT's Public IP to Pri...
Rico
Cirrus
Jan 09, 2019TJ,
F5 DNS has a feature that seems to solve your issue. When defining the servers in DNS, you have the option to set a Translation Address and a Destination Address. The destination address is the address returned upon a DNS request whereas the translation address would be the actual IP that is checked for health monitoring. This allows you to have two IP addresses associated with each server, one for internal use (pre-NAT) and one for external use (post-NAT).
Here is some helpful documentation on how it is configured.
Hope this helps.
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