Showing results for 
Search instead for 
Did you mean: 

OSPF support old L3 switches 3750 and 4500?

Level 1
Level 1

I need to find out if OSPF can be configured on the outdated (probably eol) L3 switches WS-C3750G-24TS-1U and WS-C4506-E. Can't find an official document from Cisco to confirm that OSPF  (version 1 or version 2?) is supported. The neighboring OSPF devices will be VMware Velocloud SDWAN devices (640 and 610 models). 


Show version WS-C3750G-24TS-1U:

Cisco IOS Software, C3750 Software (C3750-IPBASEK9-M), Version 12.2(55)SE5, RELE             ASE SOFTWARE (fc1)
Technical Support:
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Thu 09-Feb-12 18:59 by prod_rel_team
Image text-base: 0x01000000, data-base: 0x02D00000


ROM: Bootstrap program is C3750 boot loader
BOOTLDR: C3750 Boot Loader (C3750-HBOOT-M) Version 12.2(44)SE5, RELEASE SOFTWARE              (fc2)


KOB001 uptime is 3 years, 32 weeks, 1 day, 11 hours, 52 minutes
System returned to ROM by power-on
System restarted at 09:50:46 GMT Mon Mar 25 2019
System image file is "flash:c3750-ipbasek9-mz.122-55.SE5/c3750-ipbasek9-mz.122-5             5.SE5.bin"


This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.


A summary of U.S. laws governing Cisco cryptographic products may be found at:


If you require further assistance please contact us by sending email to


cisco WS-C3750G-24TS-1U (PowerPC405) processor (revision E0) with 131072K bytes of memory.
Processor board ID FOC1246W2AU
Last reset from power-on
4 Virtual Ethernet interfaces
28 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.


512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : 00:24:13:34:C5:00
Motherboard assembly number     : 73-10219-11
Power supply part number        : 341-0098-02
Motherboard serial number       : FOC12463WZE
Power supply serial number      : AZS1242040V
Model revision number           : E0
Motherboard revision number     : B0
Model number                    : WS-C3750G-24TS-S1U
System serial number            : FOC1246W2AU
Top Assembly Part Number        : 800-26859-04
Top Assembly Revision Number    : C0
Version ID                      : V07
CLEI Code Number                : COMB600BRC
Hardware Board Revision Number  : 0x09


Switch Ports Model              SW Version            SW Image
------ ----- -----              ----------            ----------
*    1 28    WS-C3750G-24TS-1U  12.2(55)SE5           C3750-IPBASEK9-M


Configuration register is 0xF



Show version WS-C4506-E:

Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500e-IPBASE-M), Versio             n 15.0(2)SG, RELEASE SOFTWARE (fc4)
Technical Support:
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Tue 26-Apr-11 17:31 by prod_rel_team
Image text-base: 0x10000000, data-base: 0x12AE09C4


ROM: 12.2(44r)SG10
Darkside Revision 4, Nexu Revision 12, Fortooine Revision 1.32


Switch4506 uptime is 18 weeks, 6 days, 6 hours, 37 minutes
System returned to ROM by power-on
System image file is "bootflash:cat4500e-ipbase-mz.150-2.SG.bin"


cisco WS-C4506-E (MPC8548) processor (revision 12) with 524288K bytes of memory.
Processor board ID FOX1611GVKS
MPC8548 CPU at 1GHz, Supervisor 6L-E
Last reset from PowerUp
10 Virtual Ethernet interfaces
88 Gigabit Ethernet interfaces
2 Ten Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.


Configuration register is 0x2102

7 Replies 7

Joseph W. Doherty
Hall of Fame
Hall of Fame

Your 3750G may need the IPServices IOS to provide OSPF (yours appears to have the IPBase IOS - which might only support RIP).

Your 4500 is also running an IPBase IOS and has the sup 6L.  The latter, a sup with the "L", is a feature limited version versus the sup 6.  Cannot recall all the particulars, for restrictions/limitations, on a "L" sup, but such a sup and/or the IPBase IOS may preclude running OSPF.

To confirm, on either, whether OSPF is provided, insure IP routing is enabled and try to configure router ospf #.

If OSPF is supported, it will be OSPFv2 (for IPv4).

Thanks for your response. I thought the ip base feature set is identical across all IOS models and includes a limited version of OSPF. We might not require the full version of OSPF. 

"Identical", no - similar, yes.  (At least on switches, one reason, different switch series have different architectures - on the Cat 4500, architectures differs between sups too.)

". . . and includes a limited version of OSPF."

I too do recall (?) some switches offering a very restricted variant of OSPF and/or EIGRP.  Likely such a feature would be the kind that might vary (if provided) across different platforms, even with the same IOS feature level.  (Also remember, not all products always offer the same feature sets.  For example, initially, 3750s had an IPBase, IPServices, and IPAdvancedServices feature IOSs.  Later, Cisco combined IPServices and IPAdvancedServices into just one feature set, on the 3750 platform.)

I further recall (?) the "lobotomized" variants of OSPF and/or EIGRP were oriented for edge devices, not transit routing devices.

Leo Laohoo
Hall of Fame
Hall of Fame

That's a 3750G and it can go up to 15.0(2)SE train.  

Look for an IOS version with "ipservicesk9" in the filename and OSPF will work.

Will I not need a license to install the "ipservicesk9" image? If that is the case I think we're better off replacing the switch with a newer model.


"Will I not need a license to install the "ipservicesk9" image?"

On a 3750G . . .  Need license to install - no.  Need license to legally use - yes.

in short - yes those switch will support ospf, but I would say you would require at least ipservices/ advipservices or adventerprise train software.

Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Review Cisco Networking for a $25 gift card