Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

PIX to Cable Modem

Posted on 2004-03-28
4
490 Views
Last Modified: 2013-11-16
I might need the help of security gods like lrmoore to come and help out here.

I have been connecting to the cable modem directly from my machine and now
have a PIX.

Cable modem companies usually authorise you into their network using MAC
address and not my MAC address has changed..Is there any way to perform MAC
address cloning on the outside interface of the PIX so that it can fool the
cable modem into thinking it's still my computer connecting?

Thx.
0
Comment
Question by:billwharton
  • 3
4 Comments
 
LVL 5

Expert Comment

by:visioneer
ID: 10699397
All you need to do is call the cable company and tell them that you have a new MAC address.  Give them the MAC of the PIX and you're all set.  You can get that info with the command "show interface e0".

0
 
LVL 5

Expert Comment

by:visioneer
ID: 10699410
Oh, and the answer to your actual question is "no", the PIX won't spoof MAC addresses.  Cable companies get this issue all the time when someone replaces a firewall, so a quick phone call should take care of it.
0
 
LVL 11

Author Comment

by:billwharton
ID: 10699429
Hey thx visioneer.

Supposedly my cable company doesnt even need a call...I simply rebooted the cable modem and that did the trick. I thought cable companies authorize customers via MAC's and hence wonder how did my PIX get allowed into the network without even a call?

thx.
0
 
LVL 5

Accepted Solution

by:
visioneer earned 125 total points
ID: 10699447
Not every cable company is the same.  Some of them set their routers to work only with specific MAC addresses, and some don't want the headache.  Glad to hear that it's working for you.
0

Featured Post

VMware Disaster Recovery and Data Protection

In this expert guide, you’ll learn about the components of a Modern Data Center. You will use cases for the value-added capabilities of Veeam®, including combining backup and replication for VMware disaster recovery and using replication for data center migration.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article will cover setting up redundant ISPs for outbound connectivity on an ASA 5510 (although the same should work on the 5520s and up as well).  It’s important to note that this covers outbound connectivity only.  The ASA does not have built…
This past year has been one of great growth and performance for OnPage. We have added many features and integrations to the product, making 2016 an awesome year. We see these steps forward as the basis for future growth.
Both in life and business – not all partnerships are created equal. As the demand for cloud services increases, so do the number of self-proclaimed cloud partners. Asking the right questions up front in the partnership, will enable both parties …
Both in life and business – not all partnerships are created equal. Spend 30 short minutes with us to learn:   • Key questions to ask when considering a partnership to accelerate your business into the cloud • Pitfalls and mistakes other partners…

789 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