OSPF neighbor 9500 to c3560X

[bruce.thornton]

Need help.

This should be fairly simply.....however. I have a C9500-16X that has routing enabled(couple of ports routed working with neighbors)that I'm trying to establish a neighbor relation with an old C3560X(:c3560e-universalk9-mz.152-4.E10.bin) enabled. The links are up, I can ping each side of the link, however no neighbor can be establish.

See below

9500 config:

interface TenGigabitEthernet1/0/16
description Link<>VG0202 Gateway
no switchport
ip address 10.13.255.13 255.255.255.252

############################

router ospf 100
router-id 10.13.255.100
passive-interface default
no passive-interface TenGigabitEthernet1/0/1
network 10.13.187.16 0.0.0.7 area 0.0.0.0
network 10.13.255.12 0.0.0.3 area 0.0.0.0
network 10.13.0.0 0.0.255.255 area 0.0.0.0

######################################

BTRBRGBBCFH9500_1#sho cdp nei te1/0/16 de
-------------------------
Device ID: CFHSurgVG_Sw1.ghsbtr.net
Entry address(es):
IP address: 10.13.255.14
Platform: cisco WS-C3560X-24P, Capabilities: Router Switch IGMP
Interface: TenGigabitEthernet1/0/16, Port ID (outgoing port): GigabitEthernet1/ 1
Holdtime : 143 sec

Version :
Cisco IOS Software, C3560E Software (C3560E-UNIVERSALK9-M), Version 15.2(4)E10, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2020 by Cisco Systems, Inc.
Compiled Tue 31-Mar-20 21:44 by prod_rel_team

advertisement version: 2
VTP Management Domain: ''
Duplex: full
Management address(es):
IP address: 10.13.255.14

Cisco 3560X config:

interface GigabitEthernet1/1
description Link<>9400-port 16
no switchport
ip address 10.13.255.14 255.255.255.252
end

####################################

CFHSurgVG_Sw1#sho run | b router ospf 100
router ospf 100
router-id 10.13.255.101
network 10.13.187.16 0.0.0.7 area 0.0.0.0
network 10.13.255.12 0.0.0.3 area 0.0.0.0

#######################################

CFHSurgVG_Sw1#sho cdp nei gi1/1 de
-------------------------
Device ID: BTRBRGBBCFH9500_1.ghsbtr.net
Entry address(es):
IP address: 10.13.255.13
Platform: cisco C9500-16X, Capabilities: Router Switch IGMP
Interface: GigabitEthernet1/1, Port ID (outgoing port): TenGigabitEthernet1/0/16
Holdtime : 135 sec

Version :
Cisco IOS Software [Fuji], Catalyst L3 Switch Software (CAT9K_IOSXE), Version 16.9.3, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2019 by Cisco Systems, Inc.
Compiled Wed 20-Mar-19 08:02 by mcpre

advertisement version: 2
VTP Management Domain: 'GHSDOMAIN_MT3'
Duplex: full
Management address(es):
IP address: 10.13.255.13

Any ideas!!!!!!!!!!!!!!!!!!

[Tyson Joachims]

On the 9500, you have passive interface default enabled. You will have to issue the following command to allow OSPF adjacencies to form on the port:

no passive-interface TenGigabitEthernet1/0/16

[balaji.bandi]

Do the same config on Cisco 3560X  (Some IOS by default passive-interface) - test and advise.

router ospf 100

no passive-interface GigabitEthernet1/1

Cat 9500

router ospf 100
no passive-interface TenGigabitEthernet1/0/16

[Georg Pauwen]

@balaji.bandi 

Out of curiosity, which IOS versions have OSPF set to passive-interface default, by default ?

[balaji.bandi]

 @Georg Pauwen  apologies may be mixed up auto-summary  vs passive interface. (Some IOS by default passive-interface)

[paul driver]

Hello

Assuming it just a paste typo and you have indeed allowed that interface to be non passive as suggested by @Tyson Joachims 

what sdm template is being used?

can you post  output of:

debug up ospf adj

[Richard Burts]

Assuming that the original post was accurate then passive interface was an issue. I would like to hear from the original poster about whether the passive interface has been corrected and whether there are any remaining issues.