From: Nathasha Aleyevka (naleyevka@yahoo.com)
Date: Fri Feb 11 2005 - 00:01:08 GMT-3
Hello there,
Here is my scenario"
R3
/
NON-Broadcast
/
R2----p-t-m-
\
point-to-multipoint
\
R1
R2's OSPF multipoint interface must be configured as a
multipoint interface. I use Ip ospf network point to
multipoint interface c-d, on R2 and R1, I establish
adj and have identical databes, everything is a OK.
Now
R3 has a multipoint subinterface, network type by
default is NON-Broadcast, I am not allowed to use the
ip ospf network command on R3to change this type. With
a point to miltipoint network type at one end and a
NON-broadcast network type at the other end,
OSPF establishes adj between R2 and R3, but will not
exchange routing tables, the hello/dead/retransmit
timers are identical. I can ping across, but the
routing tables are different, I have 5 OSPF routes on
R2 and 0 routes on R3. R3's interface being a
non-broadcast is looking for a DR, the other side
doesnt use a DR/BDR!!! Apparently this is a normal
behavior. Is there a work around it?
R3
R3#o ne
Neighbor ID Pri State Dead Time
Address Interface
2.2.2.2 10 FULL/DR 00:01:33
120.20.234.2 Serial1/0.23
R3#
On R2
R2#o ne
Neighbor ID Pri State Dead Time
Address Interface
1.1.1.1 0 FULL/ - 00:01:56
120.20.234.4 Serial0/0.234
3.3.3.3 1 FULL/ - 00:01:33
120.20.234.3 Serial0/0.234
R2#
I tried neighbor statements on R2/R3, it doesnt help.
I implemented a GRE tunnel between R2/R3, it didnt
help. Any ideas?? It is much appreciated.
Thank you
Nathasha
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