Robuta

https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/local-server-group-edit-forwarding-options-default-action.html
Forward DHCP client packets to the specified group of DHCP local servers when you use the DHCP relay selective processing feature. You can configure the...
dhcp relay agentlocal serverjunos osgroupoption
https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/trace-edit-forwarding-options.html
Enabling tracing can adversely impact scale and performance and may increase security risk. We strongly recommend using the trace, tracing, or traceoptions...
dhcp relay agentjunos osjuniper networkstrace
https://everything2.com/user/Feldar/writeups/DHCP+Relay+Agent
I would point out that one should be careful about routers that are configured to propagate directed broadcasts; this can result in the DHCP server getting...
dhcp relay agentidea
https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/dual-stack-group-edit-forwarding-options-overrides.html
Assigns the specified dual-stack group to both legs (DHCP and DHCPv6) of the DHCP dual stack. The dual-stack group defines the common configuration settings...
dhcp relay agentdual stackjunos osjuniper networksoverrides
https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/client-id-edit-forwarding-options-dhcp-relay-authentication.html
Specify that the client identifier (DHCP option 61) is concatenated with the username during the subscriber authentication or client authentication process.
dhcp relay agentjunos osjuniper networksclientid