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Beginner

Sub-interfaces on a Cisco 861

I am currently trying to setup a GRE tunnel on a cisco 861. As part of a configuration template provide by an outside source I am recommended to use a sub-interface on the router but the recommended configuration does not work.

Recommended configuration (IP's removed for security):

interface fa4/0

ip address 10.x.x.x 255.255.255.0

duplex auto

speed auto

no cdp enable

!

interface fa4/1

ip address 109.x.x.x 255.255.255.0

crypto map cmevpn

ip access-group 199 in

!

Fa4 is the WAN interface, /0 is suppose to be the tunnel, /1 is the normal internet connection

Can anyone explain why it doesn't work and how best to get a working solution

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VIP Mentor

Sub-interfaces on a Cisco 861

configure tunnel like this:

interface Tunnel1

ip address 10.13.99.2 255.255.255.252

ip mtu 1300

ip tcp adjust-mss 1260

tunnel source 195.243.205.xxx

tunnel destination 195.243.205.yyy

tunnel protection ipsec profile vpn_profile_xvv_vdf

regards

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