DHCP relay stops after DHCP OFFER to client

I’m having diffculties with a DHCP-relay on 1.18 (and also on 1.20-rolling).

The following config doesn’t go further then the OFFER to the client and then stops. On the interface eth0.11 subnet everthing works perfectly fine:

Mar 4 12:32:51 dhcp-01 dhcpd: DHCPDISCOVER from 0a:cd:99:19:ef:9c via 10.1.2.253
Mar 4 12:32:51 dhcp-01 dhcpd: DHCPOFFER on 10.1.2.11 to 0a:cd:99:19:ef:9c via 10.1.2.253

Config:

show service dhcp-relay

interface eth0.11
interface eth0.102
interface eth0 // set for test
relay-options {
relay-agents-packets discard
}
server 10.0.1.241

What am I doing wrong here ? looks pretty straight forwardward on a L3 setup

Seems to be a bug: ⚓ T1276 dhcp relay + VLAN fails

Discussion moved to Phabricator Task