ASR1001-X EoGRE tunnel issues.

[Kinh]

Hi Guys,

I want to use EOGRE tunneling  between two cisco ASR1001-X in point to point.

Tunnel is up but i haven't received Eogre packet when i send icmp.

Do you have any suggestion on this?

Thanks

My configuration:

Cisco IOS XE Software, Version 17.03.05
Cisco IOS Software [Amsterdam], ASR1000 Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 17.3.5, RELEASE SOFTWARE (fc2)

#Router 1

interface Tunnel3
mac-address 0000.0000.0001
ip address 10.133.1.1 255.255.255.0
tunnel source BDI1
tunnel mode ethernet gre ipv4 p2p
tunnel destination 172.10.10.2
tunnel key 1
!
interface GigabitEthernet0/0/0
no ip address
ip nbar protocol-discovery
negotiation auto
service-policy input WEBUI-MARKING-IN
service-policy output WEBUI-QUEUING-OUT
service instance 1 ethernet
encapsulation dot1q 1
bridge-domain 1

!
interface BDI1
mac-address 0000.0000.0001
ip address 172.10.10.1 255.255.255.0
encapsulation dot1Q 1

#Router2

interface Tunnel3
ip address 10.133.1.2 255.255.255.0
tunnel source BDI1
tunnel mode ethernet gre ipv4 p2p
tunnel destination 172.10.10.1
tunnel key 1

interface GigabitEthernet0/0/0
no ip address
negotiation auto
service instance 1 ethernet
encapsulation dot1q 1
bridge-domain 1
!
interface BDI1
mac-address 0000.0000.0002
ip address 172.10.10.2 255.255.255.0
encapsulation dot1Q 1

[marce1000]

 - You may need to lower MTU values , check this article : https://community.cisco.com/t5/networking-knowledge-base/gre-tunnel-mtu-interface-mtu-and-fragmentation/ta-p/3673508

 M.

[Kinh]

Thanks for this articles.

I change my MTU (1450 bytes).

However Icmp packets don't go through tunnel gre.

I think, there are mistakes in my configuration but i don't understand where... 

Kinh.

[Kinh]

Up, nobody try this solution (EOGRE ?)

[MHM Cisco World]

I will run lab check your config 

[Kinh]

I tried another configuration Interface and Hardware Component Configuration Guide - Ethernet over GRE Tunnels [Cisco ASR 1000 Series Aggregation Services Routers] - Cisco

But packets doesn't go through Eogre tunnel. i don't  see inner ethernet header.