We have a Cisco ASA 5520 for our main firewall. We have remote offices connected with IPSEC VPN tunnels using the Cisco ASA 5505. Our internal network has vlan 1 for the computers and servers and vlan 15 for the IP Phones. We want to put the IP phones at the remote offices. How can I get VLAN 15 and VLAN 1 to work over the VPN tunnel? Any help would be appreciated.