Hi,
I have a doubt in the determination of the next hop
for the adjacent router's prefixes on a Broadcast link.
R2 (DR, pfx: n2)
|L2
| L3
R1-------------------R3 (pfx: n3)
The router R1 is the calculating router and R2 is the DR.
R2 has prefix n2 on the link and R3 has n3 and the link local
address are L2 and L3 respectively.
Here the DR R2 generates the Intra-Area-Prefix(IAP) Lsa
for the network with prefixes n2 and n3 in that.
While calculating the routing table, R1 goes through the
IAP lsa of R2 and calculates the next hop for both
n2 and n3 as L2 only.
This will cause wrong forwarding
from R1 to R2 for the packets destined to n3.
In the draft, there does not seem to be a mention of
this situation.
In this case, to calculate the right next hop, the R1
has to look at the Link-Lsa of R3 and see that
the prefix n3 appears in it, then install the route
n3 with next-hop as Link-Local address from this Link Lsa.
Is there something I am missing here?
Though the purpose 2 of the link-lsa indirectly explains it.
Thanks,
Manoj
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