Site to Site VPN Between Cisco 851W and ASA 5505

By Repcsi ·
Hello Everyone,

I would like to be able to create a site to site vpn between a cisco 851w and an ASA 5505 device. At first I tried to configure it from the command line, but the vpn connection would not work. My second try was with the ASDM and SDM. Phase 1 and Phase 2 works great, VPN leds are on, on both devices.
My problem is that from the ASA's inside interfaces ( I can ping the 851w's vlan 1 ip (, but I can't reach the hosts behind the 851 router( I can't use browsers to access the 851 router's config page, so I suppose it's allowing only icmp packets by a configuration failure. From the 851's side I couldn't ping even the ASA 5505's inside interface. Tried it with rules protecting and permitting icmp and ip packets, and I tried IP connections too with the default protected setting on the routers. If the problem is complex i can provide config files. I'm working on the problem, but if someone could give me some clues, I would be thankful.

Thanks in Advance!

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