The cisco gigabit ethernet dual identity enhanced high speed wan interface card ehwic brings both small form factor pluggable sfp and copper rj 45 gigabit ethernet connectivity to cisco integrated services routers isrs to accelerate applications such as ethernet wan access inter vlan routing ivr and high speed connectivity to lan switchesthe single port cisco gigabit ethernet ehwic provides gigabit ethernet optical and copper connectivity in a compact form factor to the cisco integr