[f-nsp] traceroutes to a virtual server address on ServerIron failing

[Joe Abley]

If I have a virtual server configured on a ServerIron, what config is  
required on the SI such that traceroutes to that address get answered  
sensibly? It looks to me as though the Foundry is just throwing  
packets inbound to the virtual server address away if the destination  
port doesn't match the port configured for the virtual server.

Does this ring a bell for anybody?