Forum Discussion
Mike_Maher
Nimbostratus
Apr 26, 2011IPv6 translation to v4
So we are in the process of doing a POC in our labs using Big-IP. Currently we have LTM and ASM on 2 seperate hardware devices. Right now I have an ASM setup with a v6 Virtual Server, that has SNATing setup with a v4 address. The traffic is then pointed to a pool that contains a v4 Virtual Server on that same device that pushes the traffic through a class to the web server on the back in that is v4.
When running TCPDump I see traffic hitting the v6 VS but I am not seeing any traffic hit the v4 server. Honestly I am not sure if I should be seeing it in TCPdump or if TMOS is smarter than I am :) and just handling it via some internal channel.
If anyone has any thoughts on or is trying to make v6 work through ASM I would appreciate any help.
Mike
- hoolio
Cirrostratus
Hi Mike, - Hoolio is correct, we currently do not support IPv6 traffic in ASM. I am sure that something is choking somewhere there when ASM tries to look at the IPv6 address.
- Actually, I just realized another issue that you have - if you've added an IPv4 virtual IP to a pool, it won't work at all - while the GUI allows it, unfortunately, the only way this will properly work is if you use a virtual command in an iRule. VIP still cannot be a pool member - I believe there is an issue with the GUI validation that we need to investigate.
- Mike_Maher
Nimbostratus
Guys, - Mike_Maher
Nimbostratus
So will something as simple as this work? - Mike_Maher
Nimbostratus
Oh one other thing we have another iRule that will be needed on the v6 VS as well, that preserves the orginal source address and UA String in the header. I looks like this. Would there be a problem with running both of these on the same VS. Thanks - hoolio
Cirrostratus
Are you testing on one BIG-IP? If so, you can use the virtual command to send traffic to another VS: - Mike_Maher
Nimbostratus
So would this work to cover everything in one iRule?
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