10-17-2002 04:52 PM - edited 03-02-2019 02:10 AM
SITE A (S0)----(64K DDN)---- (S0) SITE B (S1)----(512K FR)----(s0) SITE C (E0)
SITE A:
--------------------------------------------------------
interface e0
ip address 202.101.1.0 255.255.255.192
interface s0
ip address 202.101.224.2 255.255.255.252
ip route 192.1.1.0 255.255.255.0 202.101.224.1
SITE B:
----------------------------------------------------------
interface s0
ip address 202.101.224.1 255.255.255.252
interface s1
encapsulation frame-relay ietf
bandwidth 512
ip address 202.101.1.2 255.255.255.252
frame-relay map ip 202.101.1.1 387
router ospf 101
network 202.101.1.0 0.0.0.3 area 35
network 202.101.224 0.0.0.3 area 35
ip route 202.101.1.0 255.255.255.192 202.101.224.2
SITE C
---------------------------------------------------------------
interface s0
encapsulation frame-relay ietf
ip address 202.101.1.1 255.255.255.252
fram-relay map ip 202.101.1.2 935
router ospf 101
network 202.101.1.0 0.0.0.3 area 35
network 192.1.1.0 0.0.0.255 area 35
Now, from SITE C I can ping the s0 of SITE A, but can't ping E0 of SITE A, why? OSPF can't study route from static routing?
thks!
10-17-2002 05:08 PM
You've got at least two errors in your config. You have 202.101.1.0/30 assigned to a serial link and 202.101.1.0/26 assigned to the ethernet on router A. That is not going to work. Plus you have not told OSPF on router B to advertise static routes (look up the redistribute static command).
There may be more, but I stopped looking. Good luck and good hunting!
Vincent C Jones
10-17-2002 05:10 PM
You are using the same network address on the ethernet in router A and the serial link between routers B and C, ie 202.101.1. This is not valid. The different masks do not make any difference.
10-19-2002 06:47 AM
David,
In addition to what the two previous responders said, include the keyword "broadcast" at the end of the frame relay map statements so that broadcast and multicast packets (necessary for any routing protocol) will be sent accross the frame relay link.
Good Luck!
Mark
10-20-2002 06:17 AM
Hi David,
The reason you can reach the serial port on Router A and not the Ethernet is that when a packet arrives at Router B it will see the serial 0 of Router A as being being directly connected and so pass the packet, however as it has no knowledge on how to get to the Ethernet of router A it will drop the packet.
As indicated by the previous writers you may want to redistribute static routes into OSPF on router B and also renumber your serial link (B to C) ,this should resolve your problem.
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