« Mikrotik : Tunnel GRE » : différence entre les versions
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We have two sites, '''Site1''' with local network range 10.1.101.0/24 and '''Site2''' with local network range 10.1.202.0/24.  | |||
The first step is to create GRE tunnels. A router on site 1:  | |||
{| class="wikitable"  | |||
|<code>/interface gre add name=myGre</code> <code>remote-address=192.168.90.1</code> <code>local-address=192.168.80.1</code>  | |||
|}  | |||
A router on site 2:  | |||
{| class="wikitable"  | |||
|<code>/interface gre add name=myGre</code> <code>remote-address=192.168.80.1</code> <code>local-address=192.168.90.1</code>  | |||
|}  | |||
As you can see tunnel configuration is quite simple.  | |||
In this example, a keepalive is not configured, so tunnel interface will have a '''running''' flag even if remote tunnel end is not reachable  | |||
Now we just need to set up tunnel addresses and proper routing. A router on site 1:  | |||
{| class="wikitable"  | |||
|<code>/ip address add address=172.16.1.1/30</code> <code>interface=myGre</code>  | |||
<code>/ip route add dst-address=10.1.202.0/24</code> <code>gateway=172.16.1.2</code>  | |||
|}  | |||
A router on site 2:  | |||
{| class="wikitable"  | |||
|<code>/ip address add address=172.16.1.2/30</code> <code>interface=myGre</code>  | |||
<code>/ip route add dst-address=10.1.101.0/24</code> <code>gateway=172.16.1.1</code>  | |||
|}  | |||
At this point, both sites have Layer 3 connectivity over the GRE tunnel.  | |||
=== Liens ===  | === Liens ===  | ||
Version du 27 mars 2024 à 09:25
We have two sites, Site1 with local network range 10.1.101.0/24 and Site2 with local network range 10.1.202.0/24.
The first step is to create GRE tunnels. A router on site 1:
/interface gre add name=myGre remote-address=192.168.90.1 local-address=192.168.80.1
 | 
A router on site 2:
/interface gre add name=myGre remote-address=192.168.80.1 local-address=192.168.90.1
 | 
As you can see tunnel configuration is quite simple.
In this example, a keepalive is not configured, so tunnel interface will have a running flag even if remote tunnel end is not reachable
Now we just need to set up tunnel addresses and proper routing. A router on site 1:
/ip address add address=172.16.1.1/30 interface=myGre
  | 
A router on site 2:
/ip address add address=172.16.1.2/30 interface=myGre
  | 
At this point, both sites have Layer 3 connectivity over the GRE tunnel.