ZTP IOS XR Hostname in DHCP

[MATTHIAS SCHAERER]

Is there a possibility to force an IOS XR device to add the hostname in a DHCP request (IOS devices seem to insert it into the DHCP discover)?

[Georg Pauwen]

Hello Matthias,

not sure if this in any way helpful at all, but the only way I know of getting the hostname into ZTP is with a shell script or utility (as described in the document linked below)...

Working with Zero Touch Provisioning

https://xrdocs.io/device-lifecycle/tutorials/2016-08-26-working-with-ztp/

[MATTHIAS SCHAERER]

Hi Georg

The way to get it in is clear to me. I would be interested if the hostname could be inserted into the DHCP request by some magic command. 

Thanks for your answer anyway.

[Georg Pauwen]

Hello Mattias,

DHCP option 12 (hostname) is the only thing I can think of that relates to getting the hostname into a DHCP request...

[paul driver]

Hello
Are you asking is if you can you configure the rtr to dynamically update dns with that dns service also on the rtr?

[MATTHIAS SCHAERER]

Hi Paul

Sorry for the delay. It's not really DNS that should be updated. But as ZTP is a more than one-step procedure the hostname of a device is a very good identification for further process steps and normal IOS routers add an existing hostname to eventual DHCP requests. IOS XR routers don't, so far. So I was asking myself if there is a trick to force the IOS XR router to do the same thing as his smaller siblings do.

Kind regards

Mat