Got it

Some Problems with GRE Tunnels

Latest reply: Oct 9, 2013 01:16:19 3102 5 0 0 0

I have developed a lab using many features supported by eNSP.


In my topology I use a principal link and a backup link bult with GRE tunnels.


In order to force the routers to use the backup link, I need to reset the physical interfaces associated.


I attached a screenshot of the lab.


Nat process also doesn´t work pretty well. Many times it is necessary to reset interfaces.


Thanks.

Mauricio B.

HCDA HCSI

Chile

www.nettrainers.cl

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j00223546
Created Sep 29, 2013 03:20:26

Can you give more details?
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MauroLatam
Created Sep 29, 2013 18:26:00

Of course.

Principal link between sites is through AR3 according tho the figure.

If AR3 is down, connectivity should be achieved through AR4 (GRE tunnel), but it is necessary to shu/undo shu G2/0/0 in AR2 and AR5 (interfaces facing AR4). It´s like GRE tunnel doesn´t work well.


In the same way, AR2 and AR5 do NAT to get 1.1.1.1 in AR4 (simulating Internet), but many times it is necessary to reset the interfaces with nat outbound command in order to get NAT working.


Thanks.

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j00223546
Created Oct 8, 2013 08:40:05

There is a problem with NAT and we will fix it in next version. But we didn't meet with the problem you said about GRE.
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MauroLatam
Created Oct 8, 2013 16:11:52

Reply 4 #

If you give me an email , I'll send to you the lab. I don´t want to upload it here because anyone could download it.


thanks.

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j00223546
Created Oct 9, 2013 01:16:19

Reply 5 #

OK. My email is jianghuaying@huawei.com.
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