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The command is &quot;&nbsp;ip helper-address (ip of dhcp server)&quot;. <br />
<br />
Example: <br />
int vlan 5<br />
&nbsp;ip helper-address 10.1.1.1
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The command is " ip helper-address (ip of dhcp server)".

Example:
int vlan 5
 ip helper-address 10.1.1.1

IT Admin

Damian Gardner

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In the event that the old IP helper methods don't work on those new Catalyst 9K units, you can move to the newer method of doing it, which is to setup relay pools.<br />
<br />

<pre><code id="code-20-42801524-1">ip dhcp pool DHCP_Pool
 relay source 10.1.5.0 255.255.255.0
 relay destination 10.1.1.1
 relay destination 10.1.2.1</code></pre>
<br />
The above commands are entered in global configuration mode. Replace &quot;10.1.5.0 255.255.255.0&quot; with the network address and subnet mask of the network that needs DHCP services. Replace &quot;10.1.1.1&quot; and &quot;10.1.2.1&quot; with the IPv4 addresses of your DHCP servers.
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In the event that the old IP helper methods don't work on those new Catalyst 9K units, you can move to the newer method of doing it, which is to setup relay pools.



ip dhcp pool DHCP_Pool
 relay source 10.1.5.0 255.255.255.0
 relay destination 10.1.1.1
 relay destination 10.1.2.1


The above commands are entered in global configuration mode. Replace "10.1.5.0 255.255.255.0" with the network address and subnet mask of the network that needs DHCP services. Replace "10.1.1.1" and "10.1.2.1" with the IPv4 addresses of your DHCP servers.

Sr.Net.Eng

Soulja

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If you don't &quot;no&quot; out the current ip helper address it will add an addtional ip helper address under the existing one. Jody is correct.
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If you don't "no" out the current ip helper address it will add an addtional ip helper address under the existing one. Jody is correct.

<div>
sorry for the delay. &nbsp;awesome - I Appreciate the help guys.
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sorry for the delay.  awesome - I Appreciate the help guys.

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<div class="content wysiwyg-content">
I need help with how to enter a IPHELPER address for a VLAN on my Cisco 9300 switch. &nbsp;it is currently set to an address, and I want to change it.
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I need help with how to enter a IPHELPER address for a VLAN on my Cisco 9300 switch.  it is currently set to an address, and I want to change it.

I need help with how to enter a IPHELPER address for a VLAN on my Cisco 9300 switch.

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