Managing 2950 Switches

insccisco · ‎12-18-2007

hey guys, I have 4 2950s and 2 Vlans in them. I have IPed all the switches in the 10.10.10.0/24 network

I often find myself logging into any of the switches to change the VLAN on a port so the PC can get into either of the 2 VLANS we have.

VLAN 1 is the default one, so I have disabled it on all switches.

VLAN 2 is at 10.10.10.0/24

VLAN 3 is at 10.10.20.0/24

Sometimes I get a request that a certain PC needs to go from VLAN 2 to VLAN 3, so I am provided with the MAC address of of the PC and I have to manually login to the switches and look for it. If I am lucky, I can find the mac address at the first switch I log in to (I do sh mac-address)

Is there an easier way of doing this?

thanks

Collin Clark · ‎12-18-2007

Log into the switch and then ping the address. Then so a show arp | inc [ip address]. Then do a show mac-address address [mac address]. It will tell you the port or it will show it's on the connection to the other switch. On the other switch do the show mac-address address [mac address] and it will show the port. Here's a link that explains it with examples.

http://kb.packetpros.com/kb.asp?a=show&ID=16

HTH and please rate.

steve.busby · ‎12-18-2007

If you're proficient in administering Linux; you could use "Tracker" from the COSI website:

http://cosi-nms.sourceforge.net/alpha-progs.html

HTH

Steve

insccisco · ‎12-20-2007

this is pretty good. I have not used Linux, but I thik it is time now :)

insccisco · ‎12-20-2007

this is exactly what I have been doing so basically I am looking for a shorter method.

I know there exist something called Domain withing switches, so I want to think there is a way for a network admin to login to just one router and be able to tell where a PC is without jumping/telnetting into all the switches until the PC is found.

Collin Clark · ‎12-21-2007

The Solarwinds Engineer Toolset has toos that can help. www.solarwinds.net

ccbootcamp · ‎12-18-2007

Have you thought of doing any type of routing between the VLANs using a router on a stick approach?

-brad

www.ccbootcamp.com

(please rate the post if this helps!)

insccisco · ‎12-20-2007

I do have 2 VLANs and I will have more. Currently, I have different routers being present in te different VLANs.

What is router on a stick? is that where you trunk the router to the switch instead of having a physical interface from the router (or routers) to server as the default gateway in each VLAN?

t.chinowona · ‎12-23-2007

Router on a stick is when you connect one router to a switch that has two or more vlans.You configure subinterfaces on the fastethernet on the router and these subinterfaces will be the default gateways of your vlans on the switch

ohassairi · ‎12-21-2007

if you have money buy ciscoworks LMS and user its tracker tool.