07-05-2007 10:36 AM - edited 03-05-2019 05:09 PM
I had a non-backbone/non-stub area, with loopback address 192.168.253.27. the redistributed connected subnets does not include the VLAN1 network, but include the lo0. sh int vlan 1 showed that vlan 1 is up, line protocol is up. There should be a Route Link State and Type-5 AS External Link States for the vlan 1 as the lo0.Why the VLAN 1 network is not even in the ospf database? Any help is appreciated.
router ospf 100
router-id 192.168.253.27
log-adjacency-change
redistribute connected metric-type 1 subnets
network 192.168.249.96 0.0.0.7 area 192.168.253.27
vlan100
ip address 192.168.249.97 255.255.255.248
vlan 1
ip 10.1.240.65 255.255.255.248
when I do sh ip ospf database self-originate
test#sh ip ospf database self-originate
OSPF Router with ID (192.168.253.27) (Process ID 100)
Router Link States (Area 192.168.253.27)
Link ID ADV Router Age Seq# Checksum Link count
192.168.253.27 192.168.253.27 1076 0x80000067 0x00D417 1
Net Link States (Area 192.168.253.27 )
Link ID ADV Router Age Seq# Checksum
192.168.249.97 192.168.253.27 1076 0x8000000E 0x007E36
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
192.168.253.27 192.168.253.27 1577 0x80000005 0x002D47 0
test#sh ip ospf database self-originate
OSPF Router with ID (192.168.253.27) (Process ID 100)
Router Link States (Area 192.168.253.27)
Link ID ADV Router Age Seq# Checksum Link count
192.168.253.27 192.168.253.27 1082 0x80000067 0x00D417 1
Net Link States (Area 192.168.253.27)
Link ID ADV Router Age Seq# Checksum
192.168.249.97 192.168.253.27 1082 0x8000000E 0x007E36
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
192.168.253.27 192.168.253.27 1582 0x80000005 0x002D47 0
test#sh int vlan 1
Vlan1 is up, line protocol is up
Hardware is EtherSVI, address is 000c.864a.4f00 (bia 000c.864a.4f00)
Internet address is 10.1.240.65/29
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 03:16:50, output 00:01:57, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
test#sh ip ospf 100
Routing Process "ospf 100" with ID 192.168.253.27
Start time: 1w0d, Time elapsed: 1d22h
Supports only single TOS(TOS0) routes
Supports opaque LSA
Supports Link-local Signaling (LLS)
It is an autonomous system boundary router
Redistributing External Routes from,
connected, includes subnets in redistribution
static with metric mapped to 10000, includes subnets in redistribution
Router is not originating router-LSAs with maximum metric
Initial SPF schedule delay 5000 msecs
test#sh ip route connected
192.168.0.0/16 is variably subnetted, 367 subnets, 9 masks
C 192.168.249.96/29 is directly connected, Vlan100
C 192.168.253.27/32 is directly connected, Loopback0
10.0.0.0/8 is variably subnetted, 52 subnets, 6 masks
C 10.1.240.64/29 is directly connected, Vlan1
I had FWSM in the test switch. It's using VLAN 1 when booted into the maintenance partition. I am not sure whether this has anything to do with the vlan 1 redistribution.
sincerely,
ding
07-05-2007 11:01 AM
Ding,
The switch should certainly generate a type 5 LSA for everyone of those connected networks that's being redistributed into OSPF. I'm not too familiar with FWSM functionality to give you a definite answer as to whether that's the cause. Can you try removing the FWSM and check.
HTH
Sundar
07-05-2007 11:19 AM
Hi Sundar,
Thanks for the quick reply.
I tried your suggestion. shutdown vlan 1. no shutdown vlan 1. By magic, everything is working. Beside that, I put network 10.1.240.64 0.0.0.7 area 192.168.253.27 before shutdown vlan 1, 10.1.240.64 is type 5 LSA redistributed to area 0. After that, I took the network statement out, shutdown/no shutdown vlan 1. Everything is working as expected.
Have a nice day.
ding
07-05-2007 11:23 AM
Glad to hear it works now :-)
Weird. Look for IOS bug.
HTH
Sundar
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