need to nat without nat protocol unify router > cisco 2960S

[kermitsfrog0]

Alright so.... I'm struggling a bit here and trying to see if I have any options before we just need to get rid of the 2960s and get a new router....  

We have a unify router with internet access providing a LAN subnet of 172.16.46.0/24. 

I have a 2960s assigned to 172.16.46.149 and its able to reach the internet just fine. 

the problem I'm facing now is that there is no 'nat' capabilities in the router and no 'routing' options either it seems. google says I should be able to enable routing with the 'ip routing' command but this shows as an invalid command - google then suggests using the 'sdm prefer lanbase-routing' command, which also shows as an invalid command.... 

Do I have any valid options here?

[kermitsfrog0]

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@kermitsfrog0 wrote:

the problem I'm facing now is that there is no 'nat' capabilities in the router and no 'routing' options either it seems. google says I should be able to enable routing with the 'ip routing' command but this shows as an invalid command - google then suggests using the 'sdm prefer lanbase-routing' command, which also shows as an invalid command.... 

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This is in reference to the 2960s in case it wasn't clear.

[Giuseppe Larosa]

Hello @kermitsfrog0 ,

use show version

if you device is a Catalyst 2960 there is no NAT capabilities on it

depending on the model ip routing can be enabled witth the command ip routing .

post show version to get better help .

if it is a LAN base model it might be limited to L2 switch features

Hope to help

Giuseppe

[kermitsfrog0]

Switch#sh ver
Cisco IOS Software, C2960S Software (C2960S-UNIVERSALK9-M), Version 12.2(53)SE2, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Wed 21-Apr-10 06:08 by prod_rel_team
Image text-base: 0x00003000, data-base: 0x01B00000

ROM: Bootstrap program is Alpha board boot loader
BOOTLDR: C2960S Boot Loader (C2960S-HBOOT-M) Version 12.2(53r)SE, RELEASE SOFTWARE (fc3)

Switch uptime is 18 minutes
System returned to ROM by power-on
System image file is "flash:/c2960s-universalk9-mz.122-53.SE2/c2960s-universalk9-mz.122-53.SE2.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:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

cisco WS-C2960S-24TS-L (PowerPC) processor (revision B0) with 131072K bytes of memory.
Processor board ID FOC1503X065
Last reset from power-on
3 Virtual Ethernet interfaces
1 FastEthernet interface
28 Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : C0:62:6B:92:9B:80
Motherboard assembly number : 73-11910-06
Power supply part number : 341-0328-02
Motherboard serial number : FOC15017A97
Power supply serial number : DCA1432M4JJ
Model revision number : B0
Motherboard revision number : A0
Model number : WS-C2960S-24TS-L
Daughterboard assembly number : 73-11933-04
Daughterboard serial number : FOC15022537
System serial number : FOC1503X065
Top Assembly Part Number : 800-30954-02
Top Assembly Revision Number : A0
Version ID : V02
CLEI Code Number : COMGG00ARB
Daughterboard revision number : A0
Hardware Board Revision Number : 0x01

Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 28 WS-C2960S-24TS-L 12.2(53)SE2 C2960S-UNIVERSALK9-M

Configuration register is 0xF

Switch#

[Giuseppe Larosa · Accepted solution]

Hello @kermitsfrog0 ,

>> WS-C2960S-24TS-L = LAN Base

https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-2960-s-series-switches/data_sheet_c78-726680.html?dtid=osscdc000283

as already suggested you can add a router to provide routing and NAT and you can use the Catalyst 2960S a L2 access switch

Hope to help

Giuseppe

[kermitsfrog0]

crap. alright, off to get an ISR instead... thank you Giuseppe.

[paul driver]

Hello
I the 2960s is a layer2 switch it has no routing capabilities and no NAT function, so if you require both features on a single device then a rtr would be applicable and you could still use the2960s as a access-layer device for end users connectivity