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XG software appliance - modify DHCP option 61 "DHCP_Client_Identifier(61)" when acting as a client

Sergiu Panaite

Before I get pointed to this article, please note that I am looking to set an option for the XG as a CLIENT, not options for the XG as a server.

I need to set a custom value for DHCP option 61 on the XG, so that when it sends out a DHCP Request it includes that custom value, otherwise it won't be able to get the correct address.

I can already see (through the console) that the option itself is defined on the box:

console> system dhcp dhcp-options list
Option Name Option Data Type
=========================================================================================
[...]
DHCP_Client_Identifier(61)                                  String


I don't want to bind the dhcp option to any DHCP scope because I'm not using it as a DHCP server option - instead I want it to be sent when the XG acts as a client.

So my question is, can I set the value of DHCP_Client_Identifier(61) somehow?

I can't find any obvious way to do this in the CLI unless I associate it with a DHCP scope, which is not what I'm trying to do.

Thank you!



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Parents
  • 0

    Hi Sergiu

    do you mean that DHCP Server is located elsewhere and you want that when the client sends a discover, you want to other DHCP server to respond?

    So, you want the XG to tell the client to go to another DHCP server, Correct?

    Regards,

Reply
  • 0

    Hi Sergiu

    do you mean that DHCP Server is located elsewhere and you want that when the client sends a discover, you want to other DHCP server to respond?

    So, you want the XG to tell the client to go to another DHCP server, Correct?

    Regards,

Children
  • 0 in reply to varunparikh

    If what I have written is correct, you can add the DHCP server IP address in the DHCP relay configuration. 

    After this point, all the dhcp discover requests will be forwarded to that server. (Network > DHCP > Add Relay) - Screen shot below

    Hope this helps.

  • 0 in reply to varunparikh

    Hi  - no, unfortunately.

    I didn't include details because it usually confuses this issue even more.

    My DSL provider requires the client device to send a certain string in DHCP option 61 "DHCP_Client_Identifier(61)" in order to allocate an IP address to the client. This is quite different from the usual way of doing it (PPPoE), but unfortunately that's how they do it.

    If the XG cannot be configured to send a particular string as DHCP option 61 when it requests an IP on that WAN interface, it won't get an IP.

    Hope that makes more sense.

    Thanks,

    Serg