I have an ACE that I'm trying to get configured. I need a rserver to have the same ip address and a class map vip address. ex below.
rserver host RED
ip address 220.127.116.11
serverfarm host REDS
rserver RED 9000
lass-map match-all stb-RED
2 match virtual-address 18.104.22.168 255.255.255.0 any
Shouldn't the transparent command under serverfarm allow this configuration? When I issue the class map command I get this error message.
Error: Entered VIP address is not the first address in the VIP range
loader: Version 12.2
system: Version A2(3.6a) [build 3.0(0)A2(3.6a)]
system image file: [LCP] disk0:c6ace-t1k9-mz.A2_3_6a.bin
installed license: no feature license is installed
You will have a IP conflict in network if you have two same IP's and that's why it is not allowing you to do the same.
You can configure the VIP and use this VIP as a secondary IP on the real server. That should take care of the requirement. But yes, ACE won't let you do what you are doing.
This is correct; you cannot have the VIP and real using the same IP in the config. This will be seen as a Dup IP from the ACE perspective since it owns the VIP IP. How you do this is to configure the server with a unique IP from the subnet configured on the ACE server vlan. This is what you use to define the real in the config. The server IP needs to be L2 adjacent to the ACE for this to work. The transparent keyword tells the ACE to just L2 forward the traffic to the Mac address the real resolves to, but keeps the vip IP as the destination. This is why the server needs to be L2 adjacent to the ACE so that it can see the REALs actual mac address. Without the transparent keyword we NAT the VIP address to the REAL that gets the connections.
You will also need to create a loopback IP using the same address as the vip on the server.
The reason you need to use a loopback IP is so that the server does not arp for this address. You do not want the server to advertise that it owns this address since it is already assigned to the ACE VIP.
The link below is for IOS server load balancing but the loopback samples are still relevant.
I hope this information is helpful