Clustering NAT issue

[imported_JFG]

basically I have an exchange cluster. On my primary router out to the internet I have the virtual server translated to a 1-to-1 address, but if you look at an email header, it looks as if it's comming from our 1-to-many address. Why is this and how can I get the virtual machine to translate to the 1 to 1 ?

Tks

 

[Nothinman]

You mean that you're seeing the private addresses/hostnames in the mail headers and you want to stop that?

 

[imported_JFG]

No. lets say my virtual server is 10.1.6.5 internally & I have that translated to 198.24.24.10. The outside world doesn't see that translation. What they see is my 1 to many translated address that all my private addresses translate to to get to the internet. Does NAT not work with virtual addresses?

 

[Nothinman]

What is a virtual address? 198.24.24.10 is owned by the Fairfax County Government, is that you?

 

[imported_JFG]

No. I was using an example & picked an address out of a log I had opened.

 

[Nothinman]

I still don't get what you mean by virtual addresses, do you mean non-routable IPs?

 

[Aves]

If I'm reading this right...

Your Internet router is configured to NAT ALL outbound traffic to a specific public IP. The 1:1 translation to the mail server is probably only for inbound traffic from the Internet.

You will need to modify the NAT configuration of the router to NAT the outbound traffic from the mail server to the same IPs you're using on the corresponding 1:1 translation for inbound.

Edit: I was bored.

 

[imported_JFG]

aves, I like that diag. It's sort of like that, but a little different. I have mailserver 0.01.1 & 0.0.1.2 which are clustered & use a virtual address of 0.0.2.1. The 0.0.2.1 should translate to 99.100.101.102 but it's translating to the 1- to -many address

 

[Jersey Joe]

your problem is that microsoft blows.... sorry... i'm bitter...

 

[Aves]

Originally posted by: JFG
aves, I like that diag. It's sort of like that, but a little different. I have mailserver 0.01.1 & 0.0.1.2 which are clustered & use a virtual address of 0.0.2.1. The 0.0.2.1 should translate to 99.100.101.102 but it's translating to the 1- to -many address

Same basic deal. You need to have the router recognize that oubound traffic from 0.0.2.1 needs to translate to 99.100.101.102

 

[imported_JFG]

I have IP NAT outside set to 99.100.101.102 but thats not what it translates to. I'm guessing because the traffic is actually coming from 0.0.1.1 or 0.0.1.2 is why??

 

[Aves]

Originally posted by: JFG
I have IP NAT outside set to 99.100.101.102 but thats not what it translates to. I'm guessing because the traffic is actually coming from 0.0.1.1 or 0.0.1.2 is why??

Could be. Try setting those also.