11-06-2005 12:38 AM - edited 03-03-2019 10:53 AM
have the following setup:
PC---fa0/0-Router1-fa0/1---fa0/0-Router2-fa0/1---PC
and am trying to get 6to4 tunnels happening between the two routers but
to no avail. I believe its something in the route in place but for the
life of me I cant spot the error, as the error I get when I try to ping
from a PC to the non-directly attached router I get "request timed out"
errors
It might be a tunnel problem as the destination comes up as "UNKNOWN"
Can someone please help!!! Ive got GRE tunneling and manual tunnels
working, but need to test this config (6to4 tunnels) as well.
Configs as follows:
Router1#sh run
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router1
!
boot-start-marker
boot-end-marker
!
memory-size iomem 10
no network-clock-participate slot 1
no network-clock-participate wic 0
no aaa new-model
ip subnet-zero
!
ip cef
ipv6 unicast-routing
!
interface Tunnel0
no ip address
no ip redirects
ipv6 address 2002:C0A8:6301::1/64
tunnel source FastEthernet0/1
tunnel mode ipv6ip 6to4
!
interface FastEthernet0/0
no ip address
duplex auto
speed auto
ipv6 address 2002:C0A8:6301:1::1/64
ipv6 enable
!
interface Serial0/0
no ip address
shutdown
!
interface FastEthernet0/1
ip address 192.168.99.1 255.255.255.0
duplex auto
speed auto
ipv6 enable
!
interface Serial0/1
no ip address
shutdown
!
ip http server
no ip http secure-server
ip classless
!
ipv6 route 2002::/16 Tunnel0
!
line con 0
line aux 0
line vty 0 4
!
end
Router2#sh run
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router2
!
boot-start-marker
boot-end-marker
!
!
memory-size iomem 10
no network-clock-participate slot 1
no network-clock-participate wic 0
no aaa new-model
ip subnet-zero
!
ip cef
ipv6 unicast-routing
!
interface Tunnel0
no ip address
no ip redirects
ipv6 address 2002:C0A8:2101::1/64
tunnel source FastEthernet0/0
tunnel mode ipv6ip 6to4
!
interface FastEthernet0/0
ip address 192.168.33.1 255.255.255.0
duplex auto
speed auto
!
interface Serial0/0
no ip address
shutdown
no fair-queue
!
interface BRI0/0
no ip address
shutdown
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
ipv6 address 2002:C0A8:2101:1::1/64
ipv6 enable
!
interface Serial0/1
no ip address
shutdown
!
ip http server
no ip http secure-server
ip classless
!
ipv6 route 2002::/16 Tunnel0
!
line con 0
line aux 0
line vty 0 4
!
end
Configs attached include the sh route and sh int tunnel 0 commands as well as the router configs
11-07-2005 07:44 AM
The issue is that fa0/1 on router1 and fa0/0 on router2 are not on the same ipv4 subnet. Bear in mind that ipv4 connectivity must be established for ipv6 traffic to be transported in an ipv4 tunnel.
Since the two routers are back to back, change the ip address on fa0/0 of router2 to 192.168.99.2 and the ipv6 address of tu0 to ipv6 address 2002:C0A8:6302::1/64.
You will also need to change the ipv6 address of fa0/1 to 2002:C0A8:6302:1::1/64 on router2 and the connected PC.
Hope this helps,
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