[c-nsp] ipv6 IOS SLB workaround question

[Dave]

We're currently using IOS SLB to load balance a number of web clusters 
based on server availability and leastconns. This has worked for us for 
a good long while and the IOS SLB works pretty well in v4, however it 
appears from talking to Cisco that there are no plans to upgrade IOS SLB 
to work with IPv6.

Since the IOS SLB is not slated to work with IPv6 does anyone have any 
ideas about a work around for this ? I was trying to figure out a way to 
send traffic for a specific IPv6 address to a vserver IPv4 address, 
anyone have any ideas ?

For example:

DNS for www.slbtestsite.blah is 2001:db8::216
the SLB vserver ip is 192.0.2.216

if someone hits www.slbtestsite.blah how could we map this space to use 
the correct vserver and serverfarm to respond ?

Thanks

Dave