In our main site we have a vlan for guest Internet via DSL and through a VLAN in our 3560 switches. We have 3560 switches in all sites. I would like to designate switch ports in the remote office as part of that guest Internet vlan. We use point to p...

In the past we have always had point to point links between our 3 remote offices and our corporate office. We're now switching to a MPLS network for all four sites.We currently use Cisco 1721 routers for our WAN. What protocol should we use for routi...