Thread Info
  • State Suggested Answer
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 27 subscribers
  • Views 4671 views
  • Users 0 members are here
Options
Suggested
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

DHCP Option 43 is not deliverd by DHCP service

deepoisa

Hello everyone

Sophos XG SFOS 17.5.5 MR-5 in use.

We have Huawei AP's and one AC in our environment in different subnets. 


I have added a DHCP option 43 in console using following command to make the AP's in a subnet work:

system dhcp dhcp-options binding add dhcpname Blabla optionname Vendor_Encapsulated_Options(43) value '0104XXXXXXXX'

 

By using 

system dhcp dhcp-options binding show dhcpname Blabla

the following output will be shown.

Options Configured from GUI

---------------------------

Domain_Name                                                 

Subnetmask                                                  255.255.255.0

Default_Gateway                                             X.X.X.x

Domain_Name_Servers                                         X.X.X.X

Options Configured from CLI

---------------------------

Vendor_Encapsulated_Options(43)                             "01040A00FA0A"

 

So it seems like the option code is configured and ready.

But if I request a new DHCP lease. The ACK-Packet does not contain the DHCP Option.

Do I need to restart the firewall? Any idea how to get it to deliver the DHCP option?

I appreciate your inputs

Cheers Yanick



This thread was automatically locked due to age.
Parents
  • 0

    Update:

    Using a sniffing tool I have been able to see that the DHCP option is not transmitted during the DHCP procedure.

    The DHCP procedure works perfectly well when using the sophos xg as a DHCP relay and let the DHCP service from windows server handle leases. Again I pulled out my nose and went sniffing for the DHCP procedure. I have been able to see the option 43 was transmitted on the first try(, therefore the AP connected and started perfectly well).

    We will forward this problem to our vendor and see what they come up with.

    Cheers

    Yanick

Reply
  • 0

    Update:

    Using a sniffing tool I have been able to see that the DHCP option is not transmitted during the DHCP procedure.

    The DHCP procedure works perfectly well when using the sophos xg as a DHCP relay and let the DHCP service from windows server handle leases. Again I pulled out my nose and went sniffing for the DHCP procedure. I have been able to see the option 43 was transmitted on the first try(, therefore the AP connected and started perfectly well).

    We will forward this problem to our vendor and see what they come up with.

    Cheers

    Yanick

Children