redirecting from one VS to another

Hello,

I have searched the forums and found little relating to this, as I am sure this is a bit of a unique situation.

I have two sites to be hosted behind our F5, each needing a different virtual server configuration to work properly. I have two URLs that connect to the same IP(scmdev.xx.xx.xx and scmssodev.xx.xx.xx) and the way the current configuration is we have TMG doing the redirect depending on the URL requested.

Being that I need to have two drastically different VS's on the F5 to make the sites work, I am wondering how to creat a central VS to redirect to the correct VS depending on the URL requested. I am trying to use the following iRule:

when HTTP_REQUEST {

switch [HTTP::HOST] {

scmdev.xxx.xxx.xx { virtual NAME_OF_VSERVER1 }

scmssodev.xxx.xxx.xx { virtual NAME_OF_VSERVER2 }

default {reject}

}

}

I know that this rule works when I use pool NAME_OF_POOL instead of virtual,so I am stumped as to why it cant do this to a another local VS? I have the central server setup for proxy on both SSL profiles, but when I try to connect it just shows me that the page doesnt exist, basically like it has nowhere to go. Any help on this would be greatly appreciated.