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RouterOS v7.1beta6: GRE/IPIP tunnel doesn't work[SOLVED]

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vadamlyuk
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Joined: Tue Jan 09, 2018 12:02 pm

RouterOS v7.1beta6: GRE/IPIP tunnel doesn't work

Thu Jul 01, 2021 7:38 pm

Hello,

I'm trying to setup simple GRE tunnel:
Code:Select all 
/interface ethernet set [ find default-name=ether1 ] disable-running-check=no /interface gre add local-address=185.x.x.238 name=tunnel0 remote-address=109.y.y.5 /ip address add address=185.x.x.238/24 interface=ether1 network=185.x.x.0 add address=10.255.251.2/30 interface=tunnel0 network=10.255.251.0
It works find in case local RouterOS version is 6.48.3 (tested with RouterOS 6.48.3 and Cisco on Remote side)
But when I'm just changing RouterOS version to 7.1beta7 GRE tunnel is stops working:
- I see "route inactive" flag in routing table
Code:Select all 
DIcH 10.255.251.0/30 tunnel0 0
- as result I see that traffic to 10.255.251.1 is going via default route, but not via tunnel0

Is it possible to check somehow the reason why route to GRE tunnel interface is "inactive"?

WBR, Vadim

P.S. By the way, using IPIP tunnel I have the same problem, while EoIP (which is also GRE) works fine on RouterOS v7.1beta6
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Cablenut9
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Joined: Fri Jan 08, 2021 5:30 am

Re: l雷竞技RouterOS v7.1beta6: GRE / IPIP隧道不我rk[SOLVED]

Thu Jul 01, 2021 8:21 pm

Mikrotik has a Mik-only keepalive mechanism, so try disabling that.
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vadamlyuk
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Joined: Tue Jan 09, 2018 12:02 pm

Re: l雷竞技RouterOS v7.1beta6: GRE / IPIP隧道不我rk

Thu Jul 01, 2021 8:57 pm

Mikrotik has a Mik-only keepalive mechanism, so try disabling that.
Yes, thanks, it's a solution both for GRE and IPIP tunnels on RouterOSv7
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