I am using 1841's at 4 locations, and 3 of them are acting as DHCP servers. For the purposes of VLAN with our VOIP system, I'd like the routers dhcp servers to be able to recognize and ignore certain tagged frames, as is done using scope options in MS dhcp server. I have been searching for a way to implement this functionality, but not finding anything specifically about it. Can anyone point me to an article addressing this? THanks!