Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I was using this option on ipv4 to send some information to the host. On my host lease I have something like:

supersede vendor-encapsulated-options = "MY INFORMATION";

On the DHCP client host I can see an entry like that on the lease file:

lease {
  interface "eth0";
  fixed-address XXXXX;
  option vendor-encapsulated-options "MY INFORMATION";

So I can get this information and do actions based on it.

Setting this entry on a IPv6 host entry on the DHCPD conf I can run the server with no error but the client is not getting the information. Looking at the tcpdump output I can't see this option is sent to the client in the Advertise from the DHCP Server.

How can I send vendor specific options to an IPv6 node?

share|improve this question
up vote 4 down vote accepted

The name has changed in IPv6it is called now dhcp6.vendor-opts. In the dhcpd6.conf file in the host section you must add:

option dhcp6.vendor-opts "options";

Depending on the client you must need to modify its config file to request it.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.