iNTERCELL_GROUP
Mar 23, 2011Nimbostratus
2 Diff VIPS with different Pools, but Pool Members with the same IP and Port
Hi Guys!
I am new to these forums and very excited to join and hope to contribute if I can. I only have been working with F5 LTMs and GTM's for the past 5 yrs but on and off. I am pretty familiar with the platform and quite comfortable.
My question is I am working on a big migration and I am coming across many issues where the applications don't work completely due to some 3rd party handler on the application. I recently came across some VIP on port 80 with completely different websites that have different pools, but the pool members have the same IP address and Port 80 on running on their server node's IIS Binding.
When we first added the members,the server nodes were running the different sites on different ports such as: 81, 82 with the VIP still running on port 80. However, as I stated above, the 3rd party handler's on the server's default port is 80. So the developers asked me to use port 80 on the pool members instead of port 81, and 82 for testing, and it worked. But the 2 different sites are on the same server and all configured in IIS. So here is the summary:
VIP: x.x.101.101 = http://something.domain.com
Port: 80
Pool Members:
x.x.34.10 Port 80 (IIS Binding)
x.x.34.11 Port 80 (IIS Binding)
External DNS Binding in IIS = http://something.domain.com
VIP: x.x.101.102 = http://something1.domain.com
Port: 80
Pool Members:
x.x.34.10 Port 80 (IIS Binding)
x.x.34.11 Port 80 (IIS Binding)
External DNS Binding in IIS = http://something1.domain.com
The application team has 2 other sites set up the same way. I am confused on to how this will work, how does the F5 no where to send the request to and actually pull up the correct website since they are both running on the same server with the same IP Address and Port. They said that the site is working fine now since the Pool Member change to Port 80 from ports 81 and 82 as well as their IIS binding.
Thanks Guys I really appreciate the help! Any explanation will be greatly honored!
ICG