Hi Edward, The Switch adds these via option 82 to the DHCP packet made by a DHCP client, so the DHCP server can make some decisions as to what to do with that user. Generally Circuit-Id is used to identify the originating switch and switch port that the customer is connected to, and the remote-id may be a service id/customer id.
Depending on your context you could use the Circuit-Id/Remote-Id to always allocate a specific IP address to a Switch port regardless as to what the mac address of the client device is. In a situation where the network infrastructure owner is different to the service owner (e.g. a wholesale environment) the infrastructure owner may move ports associated with a customer around - so the wholesale operator in a lot of instances is told to rely on using the remote-id and not the circuit-id to identify their client (but knowing the circuit-id may be useful if there is a fault) Cheers, Adam On Thu, May 17, 2012 at 4:25 AM, Bodnar, Edward <[email protected]>wrote: > Can anybody provide some clarity around these commands. > > Ip dhcp snooping information option format-type ( circuit-id | remote-id ) > > > Need info on what they do and why I would use them. > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
