can someone help me to set up my VPN connection for remote users using Cisco 877 as router/modem and ASA as VPN concentrator/firewall. i'm working on this issue for 2 weeks but i can't success. got VPN working with Cisco 877 alone but i can't combin both 877 and ASA. i heard that it's more benefict to run ASA as VPN concentrator, but when i try i can't because i don't know how to set up this configuration.this is my arch :
Internet-----Cisco 877----ASA 5505----LAN
Netpro's please Adevice.