Solved

How to block incoming traffic to my switch

Posted on 2014-03-27
3
224 Views
Last Modified: 2014-04-05
HI,

lately i have this problem where when ever my pcs connect to the LAN i get virus.

I would like to block all the traffic accept the specific server traffic i need for the pcs to access.

any one know how this can be done with cisco catalyst 2950.

i have try access-list 1 deny 192.168.1.1 but when try to ping from the pc i still can access the host ip 192.168.1.1


pls help
0
Comment
Question by:tankergoblin
3 Comments
 
LVL 6

Expert Comment

by:alexgreen312
ID: 39958632
Rather than blocking all traffic which is essentially what you will do, have you considered upgrading your AV software so it actually works?
0
 
LVL 17

Expert Comment

by:lruiz52
ID: 39959276
Post your sanitized switch config.   I agree with Alex, check your AV software.
0
 
LVL 45

Accepted Solution

by:
Craig Beck earned 500 total points
ID: 39960288
I agree with the other experts, but if you really want to do it at the switch level you can use VLAN access-maps...

http://blog.ine.com/2009/08/10/vlan-access-control-lists-vacls-tiers-1/

You might find that your version of IOS doesn't support VLAN access-maps though, but the feature is supported on the 2950.

This will put unnecessary pressure on the switch as every single packet will need to be inspected to see where it needs to go, so it should be a last resort.
0

Featured Post

Control application downtime with dependency maps

Visualize the interdependencies between application components better with Applications Manager's automated application discovery and dependency mapping feature. Resolve performance issues faster by quickly isolating problematic components.

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
PC and VOIP network issues 1 49
Arista Switches 2 43
Comms between vlans via router 2 22
stacking switches 2 26
The worst thing when starting a new job is when the previous Network Administrator left behind no documentation. How do you get into the devices? If you've been in this situation or just accidently mistyped your password, this article will hopefully…
I eventually solved a perplexing problem setting up telnet for a new switch.  I installed a new Cisco WS-03560X-24P switch connected to an existing Cisco 4506 running a WS-X4013-10GE Sup II-Plus. After configuring vlans and trunking,  I could no…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

757 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now