Hello,
I'm a little bit confused with the final note given in this task.
This task asks us to do the following:
• Create a loopback interface on R8 to use the subnet of 8.8.8.1 /24.
• Enable OSPF between R7 and R8 (150.50.5.64) and on the newly created
loopback interface on R8.
• Make the loopback interface a point-to-point OSPF network.
• Have R8 redistribute the Ethernet (150.50.4.0) subnet into OSPF.
• Ensure that all BGP speakers in AS200 have subnets
8.8.8.0 and 150.50.4.0 in their BGP tables.
The solution for this final part is:
R5
--
router bgp 65256
neighbor 150.50.100.2 next-hop-self
neighbor 150.50.100.6 next-hop-self
However, the following note is included:
We could use the same next-hop-self thing we did on R7.
It's good to read through the lab and know your
topology. Changing next-hop to yourself MAY cause routing problems in larger
networks. In this instance, since R2 is the hub but R5 is the route-reflector.
So R2
would see R5 as the next hop for R6's network. But R5 would send the packet
back
THROUGH R2 for L3 mappings. Routing loop!
But this is exactly what was done (that is, next-hop-self)
So I don't really know what this final note really means.
Is "next-hop-self" the actual solution, or do we have to look for an
alternative?
Thank you!
C. Valero.
--- On
