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Option 121, how to?

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Hi,

 

We are in need of utilizing option 121, however, i can't figure out how Infoblox would like the route data to be represented.

I have used the following site to generate the data, but using this, messes up the DHCP scope...

https://www.medo64.com/2018/01/configuring-classless-static-route-option/

 

Is there any specific KB or something that talks about this?


Rasmus

Re: Option 121, how to?

New Member
Posts: 1
434     0

There's this one but unfortunately it didn't work for me: https://support.infoblox.com/s/article/295

Having exactly the same problem here.

Re: Option 121, how to?

New Member
Posts: 1
435     0

Were you able to see the data being sent by the DHCP server in the DHCPOffer and DHCPAck to the client? 

 

I'd be interested to know if:

  • Is the server sending the value? if not, it's possible the client is NOT asking for that option and you might have to use the ignore client-request-list option 55 i think.
  • is the client getting the value but not "installing" the route? Could be an OS issue. 

I've followed that process of creating and setting option-121 to array of integer-8, and setting the value to:

 

24,192,168,10,0,192,168,1,1

 

This installed the route:

 

192.168.10.0/24 -> 192.168.1.1

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