I have a need to configure a DHCP Option 121 on a standalone IAP.
I have been researching this quite a bit including the RFC documentation on DHCP Option 121. It looks like we can configure this on the IAP DHCP configuration, but we are unsure of the syntax that is required on the IAP as the CLI and User Guide we have for the 6.5.0.0-4.3.1.0 firmware doesn’t have details on specifically configuring Option 121.
Could someone double check that we are using the proper syntax/parameters when configuring Option 121?
As an example below:
If we were using the destination and gateway below.
Destination: 192.168.4.1/24
Gateway: 192.168.22.1
Option 121 according to the RFC documentation used the format 0xnnddddddddgggggggg where n=mask, d=destination, g=gateway.
Since /24 is a 255.255.255.0 mask, we should only have to convert the non-zero octets to hex. This would leave us with the following converted value:
0x18C0A804C0A81601
However, when we add this value to the DHCP options, we do not seem to have the effect we are expecting.
We have also tried using just 18C0A804C0A81601.
Are we using the proper syntax for adding the route option?