CISCO_4006 layer three routing possible

Unanswered Question
Apr 22nd, 2010

Dear All

I have cisco 4006 as centrel switch and it is connected with diffrent cisco models like cisco 2950 from other locations

i have 4 subnets connected with cisco 4006. it is possible to do routing on this cisco 4006 switch if possible then tell me how.

i have paste its ver detail .

pls do the needful.

WS-C4006 Software, Version NmpSW: 6.1(1)
Copyright (c) 1995-2000 by Cisco Systems, Inc.
NMP S/W compiled on Sep 30 2000, 12:25:52
GSP S/W compiled on Sep 28 2000, 18:28:28

System Bootstrap Version: 5.4(1)

Hardware Version: 1.4  Model: WS-C4006  Serial #: JAB051706DD

Mod Port Model      Serial #              Versions
--- ---- ---------- -------------------- ---------------------------------
1   2    WS-X4013   JAB051706DD          Hw : 1.4
                                         Gsp: 6.1(1.0)
                                         Nmp: 6.1(1)
2   36   WS-X4232-RJ-XX JAE0505003B          Hw : 1.6

       DRAM                    FLASH                   NVRAM
Module Total   Used    Free    Total   Used    Free    Total Used  Free
------ ------- ------- ------- ------- ------- ------- ----- ----- -----
1       65536K  32224K  33312K  16384K   4767K  11617K  480K  176K  304K

Hi I have cisco 4006

I have this problem too.
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palukuri77 Thu, 04/22/2010 - 02:15

Layer 3 routing not possible on this switch. Its a layer 2 switch

arifkh11896 Thu, 04/22/2010 - 03:02

• WS-X4232-RJ-XX—Cisco Catalyst 4000 Layer 3 Services
32-10/100 (RJ-45), plus modular uplink slot

it is showing layer three

palukuri77 Thu, 04/22/2010 - 05:47

Hi Arif,

You are indeed right, it does support Layer3 features. i didn't notice the 4232 card which you mentioned.

So you need to enter the RSM module (4232 card) from the switch by typing session (slot number where this card is installed). Passing the login prompts you will be in the enable mode which would be simply like a router prompt.

There you can assign IP address under each interface VLAN command and can run any simple routing protocol to make things easier.

interface vlanxx

ip address

interface vlanyy

ip address





configure router rip/eigrp/ospf and make all the above VLANs to be member of it.



Giuseppe Larosa Thu, 04/22/2010 - 06:32

Hello Arif,

as explained by colleague you can perform intervlan routing on the L3 module but you probably need to use subinterfaces on port-channel interface that connects to layer2 main switch

I have two devices like this

from the L3 engine you see as CDP neighbor the L2 switch on port-channel subinterfaces

LL3-engineC-1>sh cdp n
Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
                  S - Switch, H - Host, I - IGMP, r - Repeater

Device ID        Local Intrfce     Holdtme    Capability  Platform  Port ID
FOX04163236 Switch)
                 Port-channel1.1    161         T S       WS-C4006  3/1
                 Port-channel1.1    161         T S       WS-C4006  3/2
                 Gig 1              121        R S I      WS-C6506  Gig 3/8

the member links are Gig3 and Gig4 in my case ang 3/1 and 3/2 on the switch because it is in slot 3

follow that document to configure the L3 engine.

Hope to help



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