Issues in using User Class Option

Jain, Saurabh Saurabh.Jain at
Tue Dec 12 10:33:28 UTC 2017

Hi All,

I am having difficulty in using  User class option. I am doing following configuration in the DHCP configuration file  :

option dhcp6.rapid-commit;

Option space Test code width 2 length width 2 hash size 17;
option Test.ADDR code 1 = array of ip6-address;

option Test. ADDR::1;

class "Test-Class" {
vendor-option-space Test;
option Test. ADDR::3;

subclass "Test-Class" "TestsubClass" {
vendor-option-space Test;
option Test. ADDR::2;

In the Solicit packet, I am sending the User class option as per section 22.15 of RFC 3315 (DHCPv6). In the user-class-data field I have included the class name as "TestsubClass", but in reply dhcpv6 server is not sending any user class.   I have tested by sending "Test-Class" also in the user-class data field but server is not responding with the user class details.

Can you please let  me know the correct configuration? And what should be the content of solicit request ?

Thanks a lot in advance.

Saurabh Jain


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