Velocity Reviews - Computer Hardware Reviews

Velocity Reviews > Newsgroups > Computing > Cisco > Nebie Cisco 3845 Router Question

Reply
Thread Tools

Nebie Cisco 3845 Router Question

 
 
chazman chazman is offline
Junior Member
Join Date: Feb 2011
Posts: 2
 
      02-02-2011
I have a PC on my internal network (172.16.92.229) identified with a virus. I want to kick it off the network and wait for the helpdesk line to call with connectivity problem. Sounds simple: nope.

I attempted to set a route for this offending PC (not a company PC, just someone plugged into an RJ45 outlet) and get "inconistent address and mask."

Here is my existing route (minus my public IP):
ip local pool dialup 172.16.92.43 172.16.92.47
ip route 0.0.0.0 0.0.0.0 172.16.92.8
ip route 10.0.0.0 255.255.255.0 172.16.92.8
ip route 10.0.2.0 255.255.255.0 172.16.92.8
ip route 10.1.1.125 255.255.255.255 172.16.92.8
ip route 10.10.10.0 255.255.255.0 172.16.92.8
ip route 10.99.2.0 255.255.255.0 172.16.92.8
ip route 172.17.17.0 255.255.255.0 172.16.92.8
ip route 172.31.0.0 255.255.255.0 172.16.92.8
ip route 192.168.92.0 255.255.255.0 172.16.92.8
ip route 192.168.100.0 255.255.255.0 172.16.92.8

interface GigabitEthernet0/0
description Connection to LAN
ip address 172.16.92.1 255.255.252.0
duplex auto
speed auto
media-type rj45
negotiation auto
no keepalive
no mop enabled

Is there a better way to kick this PC off my network, if not any ideas on why/how I can resolve the "inconsistent" error would be GREATLY appreciated.

Thanks ya'll!

Chazman - newbie
 
Reply With Quote
 
 
 
 
mbilgrav mbilgrav is offline
Junior Member
Join Date: Feb 2011
Posts: 3
 
      02-04-2011
you can do a null0 router - i.e route to the "bit bucket"
ex:
ip route 169.254.0.0 255.255.0.0 Null0

But this doesnt really help you much - you want to shutdown the switchport he is in.
 
Reply With Quote
 
 
 
 
mbilgrav mbilgrav is offline
Junior Member
Join Date: Feb 2011
Posts: 3
 
      02-04-2011
ups - i forgot to answer your question:

"inconistent address and mask."
means that you typed in something like:
ip route 172.16.92.229 255.255.255.0 172.16.92.8
This !"network" doesnt match the mask, as this is a host route, the mask are /32 ie 255.255.255.255
Try this:
ip route 172.16.92.229 255.255.255.255 Null0
as per my previouly post

(btw do you realize all your route statements macth the default route)
 
Reply With Quote
 
 
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Nebie Cisco 3845 Router Question chazman Hardware 1 02-04-2011 05:38 AM
SELL CISCO router 1841 2801 2821 2851 3825 3845 hkyejian02 Cisco 0 01-11-2008 09:58 AM
SELL CISCO router 1841 2801 2821 2851 3825 3845 hkyejian02 Cisco 0 11-27-2007 09:37 AM
Cisco 3845 NAM Module question, IOS 12.4 romko Cisco 1 01-31-2006 04:19 AM
Cisco 3845 NAM Module question, IOS 12.4 romko Cisco 0 01-27-2006 10:41 PM



Advertisments