isc-dhcp 4.2.5 -- does it have support of dhcp-client-identifier and vendor-class-identifier?

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                          I have isc-dhcp-4.2.5 server and client installed on two CentOS-7.4 boxes. I know this is quite old distro, but I can't change it for various reasons.

Dhcp server configuration:

    option domain-name "mydomain.org";
    option domain-name-servers ns1.mydomain.org, ns2.mydomain.org;
    
    default-lease-time 600;
    max-lease-time 7200;
    
    log-facility local7;
    
    option space myspace;
    option myspace.node-ip code 1 = ip-address;
    
    # Tell the server to return vendor-specific information
    option dhcp-parameter-request-list 43;
    
    class "vendor-classes" {
        match option vendor-class-identifier;
    }
    
    subclass "vendor-classes" "my-vendor-class-ID" {
        vendor-option-space myspace;
        option myspace.node-ip 10.5.6.7;
    }
    
    subnet 10.0.0.0 netmask 255.255.255.0 {
        range 10.0.0.50 10.0.0.60;
        option routers 10.0.0.254;
    }

Dhcp client configuration:

    interface "veth0" {
        send dhcp-client-identifier "my-client-ID"; 
        send vendor-class-identifier "my-vendor-class-ID";
        send dhcp-lease-time 900;
    }

I'm seeing two problems:

 1. The client fails to send options dhcp-client-identifier and vendor-class-identifier, tcpdump does not show those
 2. The server fails to send Option-43

It's almost that this version does not support dhcp-client-identifier and vendor-class-identifier at all? What am I doing wrong?

PS. Latest ISC-dhcp (ver. 4.4.2) built from https://gitlab.isc.org/isc-projects/dhcp  has no these problems.
                        

Asked by Mark (1943 rep)

Oct 16, 2021, 03:03 PM
Last activity: Sep 10, 2024, 08:32 AM

isc-dhcp 4.2.5 -- does it have support of dhcp-client-identifier and vendor-class-identifier?

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