?
Solved

2 DHCP IP's -> 1 Ethernet Device

Posted on 2007-03-30
8
Medium Priority
?
322 Views
Last Modified: 2010-03-18
I am trying to bind 2 dhcp addresses to 1 ethernet interface.  I know this is doable, but im not having any luck finding info on how to make it happen.  Can anyone assist?  Thanks.
0
Comment
Question by:axman505
[X]
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
8 Comments
 
LVL 19

Expert Comment

by:alextoft
ID: 18826600
Not sure it is doable to be honest. Whist DHCP is fairly universal, the manner in which differnet OS's bind additional IP addresses is not.

DHCP is designed to make WORKSTATION network configuration easier. 99.x% of workstations usually only ever require a single IP. Servers are a different matter, and are usually configured statically, for many reasons, but mainly because they don't want to be relying on other servers, plus they may have complex configurations, like multiple bindings.

Perhaps you could resolve your problem by using dns cnames (aliases)?
0
 
LVL 1

Author Comment

by:axman505
ID: 18826610
I need 2 seperate IP addresses, and DHCP is my only option for assignment.  The OS im using is Fedora Core 6
0
 
LVL 35

Expert Comment

by:ShineOn
ID: 18826723
What is the DHCP server running on?
0
Moving data to the cloud? Find out if you’re ready

Before moving to the cloud, it is important to carefully define your db needs, plan for the migration & understand prod. environment. This wp explains how to define what you need from a cloud provider, plan for the migration & what putting a cloud solution into practice entails.

 
LVL 1

Author Comment

by:axman505
ID: 18826727
To my knowledge, the DHCP server is on a redhat box.
0
 
LVL 35

Expert Comment

by:ShineOn
ID: 18826754
Usually, when you do multihoming, it's a static setup...  It's not often that a single physical interface is multihomed yet you want the addresses to be dynamic.

Can you describe the physical relationship between the two networks you want to bind to the same NIC?   That might help us figure out where to look...
0
 
LVL 2

Accepted Solution

by:
TomBoland earned 1000 total points
ID: 18946944
The best way out is to spend the small amount of money for another NIC card (and possibly a small dekstop switch.) DHCP binds the address to MAC address, so that even if it did give you two addresses, (which it shouldn't,) it could cause routing and ARP problems in the future because there could be two IP addresses for the same NIC.

You could try setting up a virtual interface (eth0:1)  and assigning that to DHCP also, but your DHCP server may balk at that.

Tom Boland
0

Featured Post

Get proactive database performance tuning online

At Percona’s web store you can order full Percona Database Performance Audit in minutes. Find out the health of your database, and how to improve it. Pay online with a credit card. Improve your database performance now!

Question has a verified solution.

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

Originally, this post was published on Monitis Blog, you can check it here . It goes without saying that technology has transformed society and the very nature of how we live, work, and communicate in ways that would’ve been incomprehensible 5 ye…
This article is in regards to the Cisco QSFP-4SFP10G-CU1M cables, which are designed to uplink/downlink 40GB ports to 10GB SFP ports. I recently experienced this and found very little configuration documentation on how these are supposed to be confi…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
Suggested Courses

771 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