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Error: The interface has ...

Error: The interface has already been used by GRE shows on NE20E.

Latest reply: Dec 31, 2018 14:35:27 820 6 7 0 0
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[~NE20E-nat-instance-NAT]   nat address-group group1 group-id 1 unnumbered interface   GigabitEthernet0/0/1
    
    If a  interface enabled with GRE   cannot be used for other services.
     #
    interface GigabitEthernet0/0/1
    undo shutdown
    ip address x.x.x.x 255.255.255.252
    undo dcn
    binding tunnel gre
    #
      http://support.huawei.com/hedex/pages/EDOC100017018230007880/02/EDOC100017018230007880/02/resources/software/nev8r9_vrpv8r15/user/vrp/binding_tunnel_gre.html?ft=0&fe=10&hib=8.1.15.2.1&id=binding_tunnel_gre&text=binding%2520tunnel%2520gre&docid=EDOC1000170182

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4am
Created Dec 29, 2018 03:09:42

Unnumbered interface solves the problem that the public IP address of an enterprise is insufficient.
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SupperRobin
Created Dec 29, 2018 03:21:25

The process marking red will cover each other and cause Boardleaf and ServiceLeaf cannot communicate with each other.
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Finn92
Created Dec 29, 2018 03:41:03

interface GigabitEthernet0/0/1
undo shutdown
ip address x.x.x.x 255.255.255.252
undo dcn
binding tunnel gre
could you explain the command ?
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NoOneNoWhere
Admin Created Dec 29, 2018 06:50:49

I have the same question as Finn92 mentioned above, I would like to know more about why need to use commands "undo dcn" and how it works for the GRE tunnel.
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littlestone
Created Dec 29, 2018 11:06:32

Tunneling is a way of transferring data between networks using the infrastructure of the Internet. The data (or load) transmitted using tunnels can be data frames or packages of different protocols. Tunnel Protocol Frames Data of Other Protocols
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w1
Created Dec 31, 2018 14:35:27

Sorry, what do you want to show us by posting this case, I don't know what is the key information from this case, if possible, please explain more details, thanks in advance.
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