Hi James - > The VLAN used by the phone can be configured in several ways: > > 1. Hard-code it on the phone. Not recommended if you have lots of phones. > 2. Auto-discovery using CDP. Requires Cisco or older HP switches. > 3. Auto-discovery using DHCP. Disabled by default in SIP 2.1.x. > > We use the third option. The phone first does DHCP on the default VLAN > (since it does not yet know which VLAN to use). The DHCP server sends > back the VLAN to use, which cause the phone to send a DHCP release, > reconfigure itself for the new VLAN, and do DHCP again on the new > VLAN. We use this method because we have newer HP switches that have > removed CDP support in favor of LLDP, which Polycom does not (yet?) > support.
Hey, thanks! I just learned something new. I've been doing untagged VLANs with them because they don't properly support CDP. Now I can get that extra port back for computers. What's the DHCP option you use to send the VLAN info? Thanks, Noah _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
