We're experiencing difficulities maintaining an IPSec tunnel from our branch site PIX 506e to our central office Nortel Contivity 4500 Extranet Swtich. Does anyone have ANY VPN interoperability reference info. that supports the Cisco to Nortel site-...

All:PPTP VPN client connections are established on a Cisco 2651 router. The 2651 router is conifgured to proxy DHCP requests, on the behalf of the VPN clients, to an internal DHCP server. A PIX has positioned between the 2651 router and the interna...