[admin@MikroTik] routing ospf> interface add interface=ether2 hello-interval=5s
[admin@MikroTik] routing ospf> interface print
0 interface=ether2 cost=1 priority=1 authentication-key=""
retransmit-interval=5s transmit-delay=1s hello-interval=5s
dead-interval=40s
[admin@MikroTik] routing ospf>
Virtual Links
Home menu level: /routing ospf virtual-link
Description
As stated in OSPF RFC, the backbone area must be contiguous. However, it is possible to define
areas in such a way that the backbone is no longer contiguous. In this case the system administrator
must restore backbone connectivity by configuring virtual links. Virtual link can be configured
between two routers through common area called transit area, one of them should have to be
connected with backbone. Virtual links belong to the backbone. The protocol treats two routers
joined by a virtual link as if they were connected by an unnumbered point-to-point network
Property Description
neighbor-id ( IP address ; default: 0.0.0.0 ) - specifies router-id of the neighbour
transit-area ( name ; default: (unknown) ) - a non-backbone area the two routers have in common
Notes
Virtual links can not be estabilished through stub areas
Example
To add a virtual link with the 10.0.0.201 router through the ex area, do the following:
[admin@MikroTik] routing ospf virtual-link> add neighbor-id=10.0.0.201 \
\... transit-area=ex
[admin@MikroTik] routing ospf virtual-link> print
Flags: X - disabled, I - invalid
#
NEIGHBOR-ID
TRANSIT-AREA
0
10.0.0.201
ex
[admin@MikroTik] routing ospf virtual-link>
Virtual link should be configured on both routers
Neighbours
Home menu level: /routing ospf neigbor
Description
The submenu provides an access to the list of OSPF neighbors, id est the routers adjacent to the
current router, and supplies brief statistics
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