?
Solved

DHCP server & 4505 switch

Posted on 2006-07-11
8
Medium Priority
?
354 Views
Last Modified: 2013-12-23
I have a DHCP server plugged into the 4505 Cisco switch.

1. This switch is configured with Vlan 101 data & Vlan 201 voice.

 interface GigabitEthernet2/1
 switchport access vlan 101
 switchport mode access
 switchport voice vlan 201

2. I had to change the port that the W2k3 DHCP server was plugged into to look like this.

interface GigabitEthernet2/32
 switchport access vlan 201
 switchport mode access
 switchport voice vlan 201

3. DHCP works now how ever I have lost my Data Vlan.
--------     -----------     ------      --------
DHCP |--- | Switch | --| PC  | + | phone|
--------     -----------     ------     ----------
1. DHCP server 10.10.xxx
2. Switch 172.16.x.x/10.10.x.x
3. PC = 172.16.x.x   Phone =10.10.x.x

My issue is that the DHCP server will not issue an IP address to the phones when it is set to
switchport access vlan 101. I need the Vlan 101 for my Data.

interface GigabitEthernet2/1
 switchport access vlan 101
 switchport mode access
 switchport voice vlan 201

I  have used the IP DHCP-SERVER command.. still nothing.
0
Comment
Question by:learn2earn
  • 4
  • 4
8 Comments
 
LVL 27

Expert Comment

by:pseudocyber
ID: 17081952
I believe the command you want is "ip helper" which will relay DHCP broadcasts across vlans (routed) to the DHCP server.
0
 
LVL 2

Author Comment

by:learn2earn
ID: 17082211
Can this command work on a 4505 switch.
Because when I log in and type.

Switch-01(config)#ip

 gdp                     Router discovery mechanism
 gratuitous-arps         Generate gratuitous ARPs f
 host                    Add an entry to the ip hos
 host-routing            Enable host-based routing
 hp-host                 Enable the HP proxy probe
 http                    HTTP server configuration
 icmp                    ICMP options
 igmp                    IGMP global configuration

I do not see the IP helper command available.
0
 
LVL 27

Expert Comment

by:pseudocyber
ID: 17082791
What IOS are you running?
0
Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

 
LVL 2

Author Comment

by:learn2earn
ID: 17082869
Ver. 12.2

I found it.

Switch-01(config)#int vlan 201
Switch-01(config-if)#ip helper-address 10.10.x.x
0
 
LVL 27

Expert Comment

by:pseudocyber
ID: 17082888
Cool.
0
 
LVL 2

Author Comment

by:learn2earn
ID: 17093950
do I put the gateway address or the DHCP ip address?
0
 
LVL 27

Accepted Solution

by:
pseudocyber earned 375 total points
ID: 17093995
You put the IP address of the DHCP server.
0
 
LVL 2

Author Comment

by:learn2earn
ID: 17197744
I got it to work thanks
0

Featured Post

[Webinar] Improve your customer journey

A positive customer journey is important in attracting and retaining business. To improve this experience, you can use Google Maps APIs to increase checkout conversions, boost user engagement, and optimize order fulfillment. Learn how in this webinar presented by Dito.

Question has a verified solution.

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

Nslookup is a command line driven utility supplied as part of most Windows operating systems that can reveal information related to domain names and the Internet Protocol (IP) addresses associated with them. In simple terms, it is a tool that can …
Downtime reduced, data recovered by utilizing an Experts Exchange Business Account Challenge The United States Marine Corps employs more than 200,000 active-duty Marines with operations in four continents, all requiring complex networking system…
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
The video will let you know the exact process to import OST/PST files to the cloud based Office 365 mailboxes. Using Kernel Import PST to Office 365 tool, one can quickly import numerous OST/PST files to Office 365. Besides this, the tool also comes…

589 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