unable to set dhcp relay address on interface of an SG350XG-48T

[ddiguru]

I'm not able to set specific DHCP relay addresses on interfaces. I can only set them globally from the CLI. When i add them to an interface, they default to global even though i'm on a specific interface. Is this a bug or am i doing something wrong? 

Active-image: flash://system/images/image_tesla_hybrid_2.4.5.71_release_cisco_signed.bin
Version: 2.4.5.71
MD5 Digest: 2dff89efdb2a0ec2f9a2c414ff7d401c
Date: 04-Nov-2018
Time: 19:46:16

I've tried clearing out all globals and starting from scratch, but to no avail. 

DHCP relay is Disabled
Option 82 is Disabled
Maximum number of supported VLANs without IP Address is 256
Number of DHCP Relays enabled on VLANs without IP Address is 0
DHCP relay is not configured on any port.
DHCP relay is enabled on Vlans: 1,20,50,60,70
Active:
Inactive: 1,20,50,60,70
Servers: 192.168.3.27 , 192.168.3.28

I tried to add 192.168.4.40 as a DHCP relay to interface VLAN 10:

cisco01(config)#interface vlan 10
cisco01(config-if)#ip dhcp relay address 192.168.4.40
cisco01(config-if)#ip dhcp relay enable
cisco01(config-if)#exit
cisco01(config)#exit

show run | inc dhcp shows the server got added to the global list instead of to the interface

Please advise... Thanks!

[ddiguru · Accepted solution]

I tried downgrading. That did not work either. 

I'm convinced this is a software bug OR the documentation is wrong. You should be able to set interface-specific DHCP relay addresses per the documentation. I can't get that to work no matter what i do, all servers added under an interface default to global in the config. 

[tonysky22]

Hi ddiguru,

I'm facing the same problem.

Have you found out how to resolve it ?

I think the problem is the switch itself and its programmed features. I think it can not relay dhcp per vlan, instead of catalyst series. But maybe I'm wrong...

Regards

[TheGoob]

I am actually curious about this myself. It seems on the SG350XG that I have I also apparently have a bug. No matter what I set manually, it defaults to the relay ip under global. When I check config, it acts as if I never inputted it [onto the vlan]. 

Also it appears on both SG350XG and SG500XG you can do both global and interface dhcp relay but only on the SG500XG can you do the global and interface relay address, but only global address on SG350XG.