Campus Switching and Routing

Regular Contributor I
Posts: 231
Registered: ‎05-04-2011

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 !!!


Posts: 429
Registered: ‎05-30-2012

Re: S3500 dhcp-relay

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


Best regards,



Regular Contributor I
Posts: 231
Registered: ‎05-04-2011

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. 

Posts: 1,642
Registered: ‎04-13-2009

Re: S3500 dhcp-relay

[ Edited ]



Suggestion was already answered above.

Systems Engineer, Northeast USA

New Contributor
Posts: 2
Registered: ‎09-25-2014

Re: S3500 dhcp-relay

[ Edited ]


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
Posts: 8,320
Registered: ‎09-08-2010

Re: S3500 dhcp-relay

Is the profile tied to another interface or group?

Tim Cappalli | Aruba Security TME
@timcappalli | | ACMX #367 / ACCX #480
New Contributor
Posts: 2
Registered: ‎09-25-2014

Re: S3500 dhcp-relay

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