[c-nsp] Setting relay agent IP on 4500

[Phil Mayers]

On 31/07/17 15:38, Jason Lixfeld wrote:

> Agreed. However, if the relay is configured to use option 82 sub option 
> 5 (RFC3527), the relay can overwrite the giaddr to an IP that is 
> reachable by the DHCP server (typically the egress interface instead of 
> the ingress interface).  The relay would also inserts the link subnet 
> into the option 5 field, and the server uses that value to select the 
> subnet it should allocate from, instead of using giaddr to signal that.

I am assuming that IOS does not do this on a "global" IP helper, then?