08-28-2009 10:12 PM - edited 03-04-2019 05:53 AM
R3: -- HUB Router
R4: -- Cloud
R5: -- Spoke Router
As discussed in above scenario I am not able to ping from R3 to R5 in GRE Multimode Tunnel. Actually I want to run OSPF over Dynamic Multipoint IPSec VPNs (Using Multipoint GRE NHRP)
R3#
R3#sh run
R3#sh running-config
Building configuration...
Current configuration : 1520 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
boot-start-marker
boot-end-marker
!
no aaa new-model
!
resource policy
!
memory-size iomem 5
ip cef
!
interface Tunnel1
description ********* TUNNEL INTERFACE TO R5 ********
ip address 172.30.1.2 255.255.255.0
no ip redirects
ip mtu 1416
ip nhrp map multicast dynamic
ip nhrp network-id 5050
ip nhrp holdtime 100
tunnel source FastEthernet0/0
tunnel mode gre multipoint
!
interface Loopback1
description ******** LAN INTERFACE ********
ip address 192.168.10.1 255.255.255.0
!
interface Loopback2
description ******** LAN INTERFACE ONE ********
ip address 192.168.11.1 255.255.255.0
!
interface FastEthernet0/0
description ******* WAN INTERFACE *********
ip address 1.1.1.1 255.255.255.0
duplex auto
speed auto
!
ip route 0.0.0.0 0.0.0.0 1.1.1.2
!
ip http server
no ip http secure-serve
control-plane
!
!
line con 0
line aux 0
line vty 0 4
!
!
end
R4#sh run
R4#sh running-config
Building configuration...
Current configuration : 1046 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R4
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
memory-size iomem 5
ip cef
!
interface FastEthernet0/0
description ******** WAN TO R3 ************
ip address 1.1.1.2 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
description ******** WAN TO R5 ************
ip address 2.2.2.1 255.255.255.0
duplex auto
speed auto
!
ip http server
no ip http secure-server
!
control-plane
!
line con 0
line aux 0
line vty 0 4
!
end
R5#sh run
R5#sh running-config
Building configuration...
Current configuration : 1570 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R5
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
memory-size iomem 5
ip cef
!
!
interface Tunnel1
description **********TUNNEL INTERFACE TO R3********
ip address 172.30.1.1 255.255.255.0
no ip redirects
ip mtu 1416
ip nhrp map multicast 1.1.1.2
ip nhrp map 172.30.1.2 1.1.1.2
ip nhrp network-id 5050
ip nhrp holdtime 100
ip nhrp nhs 172.30.1.2
tunnel source FastEthernet0/1
tunnel mode gre multipoint
!
interface Loopback1
description ******* LAN INTERFACE ********
ip address 192.168.1.1 255.255.255.0
!
interface Loopback2
description ******* LAN INTERFACE ONE ********
ip address 192.168.2.1 255.255.255.0
!
ip route 0.0.0.0 0.0.0.0 2.2.2.1
!
ip http server
no ip http secure-server
!
control-plane
!
line con 0
line aux 0
line vty 0 4
!
end
R5#
08-29-2009 12:29 AM
Hello,
I do not see the configuration of the Fa0/1 interface in the R5 output but I assume that it is present and configured OK.
There is a typo in the Tunnel1 configuration on the R5: you have mapped the tunnel IP address 172.30.1.2 to the real IP 1.1.1.2. Notice that this is wrong - this points to the R4 that is only a cloud. It should correctly point to 1.1.1.1 - the R3. The correct line on R5 should be therefore:
ip nhrp map 172.30.1.2 1.1.1.1
Best regards,
Peter
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