Wired Intelligent Edge (Campus Switching and Routing)

Regular Contributor I

S3500 dhcp-relay

I need to setup dhcp relay on a S3500 switch running Version


I believe I have it set up right and that there is a problem in my dhcp server but just in case I got it wrong or I'm missing something I thought I better put up this post.


First set up the relay profile

(ArubaS3500-24-POE) (config) # interface-profile dhcp-relay-profile 1
(ArubaS3500-24-POE) (dhcp relay profile "1") #helper-address  <-- Your dhcp server ip address


Then apply the profile to the vlan interface

(ArubaS3500-24-POE) (config) #interface vlan 3

(ArubaS3500-24-POE) (vlan "3") #dhcp-relay-profile 1 

(Aruba-24-POE_GREllington3) (vlan "3") #exit


Then of course do a wr mem.


Am I missing anything because it sure isn't working.....


Thanks guys !!!



Re: S3500 dhcp-relay

Do you also have an IP interface on that VLAN? Otherwise the configuration looks correct.


Best regards,



Regular Contributor I

Re: S3500 dhcp-relay

Yes I have an IP address assigned to the interface. 


Ok. Thanks. Like I said I think there is a problem with dhcp server. 


Just wanted to confirm the config on the switch. 


Re: S3500 dhcp-relay



Suggestion was already answered above.

Systems Engineer, Northeast USA

New Contributor

Re: S3500 dhcp-relay


This thread was very handy, however I am new to 3500 (Aruba) and need to change to a new DHCP server... can some one post how to remove the profile? I am unable, says, profile in use, but no vlan interface is assigned to it..


Started with:

interface-profile dhcp-relay-profile DHCP-RELAY-Profile1 <-- Old Profile
helper-address 10.x.x.xx5 <-- Old dhcp server ip address


Created a new profile with new helper IP...

Removed the dhcp profile from vlan interface

assigned new profile to the VLAN interface...


Unable to remove old profile now?


Thanks for your help...

Guru Elite

Re: S3500 dhcp-relay

Is the profile tied to another interface or group?

| Tim Cappalli | Aruba Security | @timcappalli | timcappalli.me |

NOTE: Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba or Hewlett Packard Enterprise.
New Contributor

Re: S3500 dhcp-relay

Ahhh yes it was... removed ok now. Thanks
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