04-21-2018 08:12 PM - edited 03-08-2019 02:44 PM
I have configured this ospf topology like this below with goals is every node can access each other.
PKT file : https://drive.google.com/open?id=1c6g0tgbqI9S2FKl9JREWGPjnKmXWRWmy
Problem : From R1_area1 cant connect to local area network(server) and gateway from each router in OSPF area 0
Do I miss configuration?
Some verification of my configuration this below
R1_Area1#sh ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 2.2.2.2 0 FULL/ - 00:00:36 12.1.1.2 Serial0/3/0 R1_Area1#sh ip ospf da R1_Area1#sh ip ospf database OSPF Router with ID (1.1.1.1) (Process ID 1) Router Link States (Area 1) Link ID ADV Router Age Seq# Checksum Link count 1.1.1.1 1.1.1.1 1005 0x80000004 0x00136c 3 2.2.2.2 2.2.2.2 1005 0x80000002 0x004a4b 2 Summary Net Link States (Area 1) Link ID ADV Router Age Seq# Checksum 25.1.1.0 2.2.2.2 1011 0x80000001 0x00cf72 R1_Area1#
R2_Area1_2#sh ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 3.3.3.3 1 2WAY/DROTHER 00:00:36 25.1.1.3 GigabitEthernet0/0 4.4.4.4 1 FULL/BDR 00:00:36 25.1.1.4 GigabitEthernet0/0 5.5.5.5 1 FULL/DR 00:00:36 25.1.1.2 GigabitEthernet0/0 1.1.1.1 0 FULL/ - 00:00:36 12.1.1.1 Serial0/3/0 R2_Area1_2#sh ip os R2_Area1_2#sh ip ospf da R2_Area1_2#sh ip ospf database OSPF Router with ID (2.2.2.2) (Process ID 1) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 2.2.2.2 2.2.2.2 1035 0x80000003 0x0062a6 1 5.5.5.5 5.5.5.5 1035 0x80000004 0x004dab 2 4.4.4.4 4.4.4.4 1035 0x80000004 0x00ab70 2 3.3.3.3 3.3.3.3 1026 0x80000006 0x00a450 2 Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 25.1.1.2 5.5.5.5 1026 0x80000003 0x0032b6 Summary Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 12.1.1.0 2.2.2.2 1070 0x80000001 0x000a02 7.1.1.0 2.2.2.2 1060 0x80000002 0x0065a6 Router Link States (Area 1) Link ID ADV Router Age Seq# Checksum Link count 2.2.2.2 2.2.2.2 1071 0x80000002 0x004a4b 2 1.1.1.1 1.1.1.1 1071 0x80000004 0x00136c 3 Summary Net Link States (Area 1) Link ID ADV Router Age Seq# Checksum 25.1.1.0 2.2.2.2 1077 0x80000001 0x00cf72
R3_Area0#sh ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 2.2.2.2 1 2WAY/DROTHER 00:00:39 25.1.1.1 GigabitEthernet0/0 4.4.4.4 1 FULL/BDR 00:00:39 25.1.1.4 GigabitEthernet0/0 5.5.5.5 1 FULL/DR 00:00:39 25.1.1.2 GigabitEthernet0/0 R3_Area0#sh ip os R3_Area0#sh ip ospf da R3_Area0#sh ip ospf database OSPF Router with ID (3.3.3.3) (Process ID 1) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 2.2.2.2 2.2.2.2 1131 0x80000003 0x0062a6 1 4.4.4.4 4.4.4.4 1131 0x80000004 0x00ab70 2 5.5.5.5 5.5.5.5 1131 0x80000004 0x004dab 2 3.3.3.3 3.3.3.3 1122 0x80000006 0x00a450 2 Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 25.1.1.2 5.5.5.5 1122 0x80000003 0x0032b6 Summary Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 12.1.1.0 2.2.2.2 1166 0x80000001 0x000a02 7.1.1.0 2.2.2.2 1156 0x80000002 0x0065a6
R4_area0#sh ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 2.2.2.2 1 FULL/DROTHER 00:00:37 25.1.1.1 GigabitEthernet0/0 5.5.5.5 1 FULL/DR 00:00:37 25.1.1.2 GigabitEthernet0/0 3.3.3.3 1 FULL/DROTHER 00:00:37 25.1.1.3 GigabitEthernet0/0 R4_area0#sh ip ospf da R4_area0#sh ip ospf database OSPF Router with ID (4.4.4.4) (Process ID 1) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 4.4.4.4 4.4.4.4 1175 0x80000004 0x00ab70 2 2.2.2.2 2.2.2.2 1175 0x80000003 0x0062a6 1 5.5.5.5 5.5.5.5 1175 0x80000004 0x004dab 2 3.3.3.3 3.3.3.3 1166 0x80000006 0x00a450 2 Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 25.1.1.2 5.5.5.5 1166 0x80000003 0x0032b6 Summary Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 12.1.1.0 2.2.2.2 1210 0x80000001 0x000a02 7.1.1.0 2.2.2.2 1200 0x80000002 0x0065a6
R5_Area0#sh ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 2.2.2.2 1 FULL/DROTHER 00:00:33 25.1.1.1 GigabitEthernet0/0 4.4.4.4 1 FULL/BDR 00:00:33 25.1.1.4 GigabitEthernet0/0 3.3.3.3 1 FULL/DROTHER 00:00:33 25.1.1.3 GigabitEthernet0/0 R5_Area0#sh ip ospf da R5_Area0#sh ip ospf database OSPF Router with ID (5.5.5.5) (Process ID 1) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 5.5.5.5 5.5.5.5 1212 0x80000004 0x004dab 2 2.2.2.2 2.2.2.2 1211 0x80000003 0x0062a6 1 4.4.4.4 4.4.4.4 1211 0x80000004 0x00ab70 2 3.3.3.3 3.3.3.3 1202 0x80000006 0x00a450 2 Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 25.1.1.2 5.5.5.5 1202 0x80000003 0x0032b6 Summary Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 12.1.1.0 2.2.2.2 1247 0x80000001 0x000a02 7.1.1.0 2.2.2.2 1237 0x80000002 0x0065a6
Thanks in advance
Solved! Go to Solution.
04-22-2018 12:56 AM
Hi,
It is looking a Packet tracer bug. I tested the same configuration in my lab and GNS3. it is working fine. I created another lab in Packet tracer and there is the same issue.
Regards,
Deepak Kumar
04-21-2018 11:26 PM
Maybe I am missing something, but it should work as it is written. It looks like Packet tracer bug.
When show ip ospf database is issued there should be entry for each route that is advertised into OSPF, however present are only routes between OSPF neighbors (on other hand all routes from the same area are present in routing table).
Solution to go around ping problem (but not to remove root cause itself) would be to configure on ABR:
ip route 0.0.0.0 0.0.0.0 null0
router ospf 1
default-information originate
04-22-2018 01:43 AM
04-22-2018 12:56 AM
Hi,
It is looking a Packet tracer bug. I tested the same configuration in my lab and GNS3. it is working fine. I created another lab in Packet tracer and there is the same issue.
Regards,
Deepak Kumar
04-22-2018 04:23 AM
Ok thanks, I created again on gns3 and it works.
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide