Site-A(Mikrotik Router):
/interface gre
add !keepalive local-address=10.29.122.66 mtu=1400
name=GRE-Borak-banasree-L3-DATA remote-address=220.220.220.92
/ip address
add address=10.29.122.66/30 interface=ether2 network=10.29.122.64
add address=192.168.2.1/24 interface=ether3 network=192.168.2.0
add address=172.16.1.2/30 interface=GRE-Borak-banasree-L3-DATA
network=172.16.1.0
/ip route
add distance=1 gateway=10.29.122.65
/routing ospf interface
add interface=ether3 network-type=broadcast passive=yes
add authentication=md5 authentication-key=abc authentication-key-id=113
interface=GRE-Borak-banasree-L3-DATA network-type=point-to-point
/routing ospf network
add area=backbone network=172.16.1.0/30
add area=backbone network=192.168.2.0/24
Site-B(Mikrotik Router):
/interface gre
add !keepalive local-address=220.220.220.92 mtu=1400
name=GRE-Borak-banasree-L3-DATA remote-address=10.29.122.66
/ip address
add address=220.220.220.92/29 interface=ether1 network=220.220.220.88
add address=192.168.1.1/24 interface=ether2 network=192.168.1.0
add address=172.16.1.1/30 interface=GRE-Borak-banasree-L3-DATA
network=172.16.1.0
/ip route
add distance=1 gateway=220.220.220.89
/routing ospf interface
add interface=ether2 network-type=broadcast passive=yes
add authentication=md5 authentication-key=abc authentication-key-id=113
interface=GRE-Borak-banasree-L3-DATA network-type=point-to-point
/routing ospf network
add area=backbone network=172.16.1.0/30
add area=backbone network=192.168.1.0/24
Borak(Mikrotik Router):
/ip address
add address=220.220.220.89/29 interface=ether1 network=220.220.220.88
add address=10.29.122.65/30 interface=ether2 network=10.29.122.64
PC1:
PC1> ip 192.168.1.2
255.255.255.0 192.168.1.1
PC2:
PC2> ip 192.168.2.2 255.255.255.0 192.168.2.1