Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

dhcp helper command

Posted on 2009-05-18
2
Medium Priority
?
542 Views
Last Modified: 2012-06-27
Hi there,
I've a single cisco router with 2 interfaces:
interface vlan 1: 10.152.0.126/25
interface vlan 2: 10.152.1.254/27

I've an IP phone sitting in vlan 2 subnet and it needs to get an I.P from DHCP server which is sitting in vlan 1 subnet. Now I do know that ip helper-address is required for phone to get I.P from another subnet; but just making sure which interface and which I.P do i specify in ip helpder-address command?

From my understanding, I think it should be on vlan 2 interface
Interface vlan 2
 ip helper-address 10.152.0.126 ??? (I.P of vlan 1 interface) or
 ip helper-address 10.152.0.102 (I.P of DHCP server itself) ???
0
Comment
Question by:nabeel92
[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
2 Comments
 
LVL 79

Accepted Solution

by:
lrmoore earned 2000 total points
ID: 24418100
The ip helper-address command goes on the interface closest to the DHCP client - vlan 2
The IP address is the IP of the DHCP server itself.

Interface vlan 2
 ip helper-address 10.152.0.xxx  <dhcp server ip>

0
 

Author Comment

by:nabeel92
ID: 24418254
yeah, thats what i thought so !
thanks ....
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

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

We've been using the Cisco/Linksys RV042 for years as: - an internet Gateway - a site-to-site VPN device - a leased line site-to-site subnet-to-subnet interface (And, here I'm assuming that any RV0xx behaves the same way as an RV042.  So that's …
WARNING:   If you follow the instructions here, you will wipe out your VTP and VLAN configurations.  Make sure you have backed up your switch!!! I recently had some issues with a few low-end Cisco routers (RV325) and I opened a case with Cisco TA…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Suggested Courses

618 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