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Tunnel GRE config/ HELP

Tunnel GRE config/ HELP

Created: Nov 9, 2018 21:51:54Latest reply: Nov 28, 2018 08:00:45 1841 5 0 0 0
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Hello guys I've spent the whole day doing some researches on how to fix this issue.

So our company is setting up a tunnel GRE with a customer, customer is using a Cisco Router and Tunnel configuration is UP UP while my Tunnel config is UP DOWN... I've done all i could and all researches I can but protocols is not coming UP.


My topology is simples, its just 2 routers connected p2p and thats all, theres nothing in between.

Source and Tunnel interfaces are binded to a VRF called RPE



this its my source interface config:

interface GigabitEthernet1/1/2
 description
 undo shutdown
 ip binding vpn-instance RPE
 ip address 192.168.2.1 255.255.255.252
 undo dcn

GigabitEthernet1/1/2              192.168.2.1/30       up         up




this is my tunnel interface config:

interface Tunnel1/1/4001
 ip address 192.168.2.1 255.255.255.252
 tunnel-protocol gre
 source 192.168.2.1
 destination vpn-instance RPE 192.168.2.2

Tunnel1/1/4001                    192.168.2.1/30       up         down



Tunnel1/1/4001 current state : UP
Line protocol current state : DOWN
Description:HUAWEI, Tunnel1/1/4001 Interface
Route Port,The Maximum Transmit Unit is 1500
Internet Address is 192.168.2.1/30
Encapsulation is TUNNEL, loopback not set
Tunnel source 192.168.2.1 (GigabitEthernet1/1/2), destination vrf RPE 192.168.2.2
Tunnel protocol/transport GRE/IP, key disabled
keepalive disabled
Checksumming of packets disabled







I hope I can have help from the good community... thanks in advanced.
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No.9527
Created Nov 15, 2018 06:22:09

the configuration seems fine, no problem.
but there is one suggestion as I found from your configuration:
1. the tunnel address don't be same as physical interface. Otherwise there will be some wrong when query routing forwarding table of device.
2. the tunnel source address is local physical interface address and the tunnel destination address is peer physical interface address.

please modify the connecting interfaces addresses then try again.
If still not solved, you'd better create a ticket to support you, and provide detailed device information such as version/model/whole configuration etc.

And I am very curious why you establish vpn between them since it is p2p connectivity as you descripted, I think only need static routing then be ok.
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rociot
rociot Created Nov 9, 2018 23:54:52

Hi friend :)

According with your current configuration, I recommend you to review following links, are similar that yours.

http://support.huawei.com/hedex/ ... 253C%252Fb%253E

http://support.huawei.com/hedex/ ... 253C%252Fb%253E

Let me know if it works.
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DavioSardinha
DavioSardinha Created Nov 11, 2018 09:34:18

Posted by rociot at 2018-11-09 23:54 Hi friend :)According with your current configuration, I recommend you to review following links, a ...
Hello mate, well I've checked what you've sent on the links but I still can't make that protocol to come up, in fact steps were followed as the guide says for VRF cconfigs... I still can't figure it out what the issue is.
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Finn92
Finn92 Created Nov 15, 2018 03:55:14

hello sir

According with your current configuration, I recommend you refer below link to configure GRE tunnel :
http://support.huawei.com/hedex/pages/EDOC1100007335AEH0806S/03/EDOC1100007335AEH0806S/03/resources/dc/dc_cfg_gre_0021.html?ft=0&fe=10&hib=9.3.10.4.8.1&id=dc_cfg_gre_0021_2&text=Example%20for%20Configuring%20a%20Static%20Route%20for%20GRE%20to%20Implement%20Interworking%20Between%20IPv4%20Networks&docid=EDOC1100007335

and one thing you should check ,why are you tunnel IP is same as physical interface ip .and in tunnel the destination IP is peer tunnel IP , not physical interface IP .
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No.9527
No.9527 Created Nov 15, 2018 06:22:09

the configuration seems fine, no problem.
but there is one suggestion as I found from your configuration:
1. the tunnel address don't be same as physical interface. Otherwise there will be some wrong when query routing forwarding table of device.
2. the tunnel source address is local physical interface address and the tunnel destination address is peer physical interface address.

please modify the connecting interfaces addresses then try again.
If still not solved, you'd better create a ticket to support you, and provide detailed device information such as version/model/whole configuration etc.

And I am very curious why you establish vpn between them since it is p2p connectivity as you descripted, I think only need static routing then be ok.
View more
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Mysterious.color
Mysterious.color Created Nov 28, 2018 08:00:45

thanks for helping in solving problems and teach us
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