JUNIPER SRX1400 CLUSTER DHCP RELAY CONFIGURATION MORE INTERFACES

Buon salve all,

how are you? How does proceed your digital life?

Some days ago I spoke you, in this post, about the solved issue I encounter to configure the dhcp relay into a Juniper SRX1400 cluster environment. Today I would like to update that issue describing you how you can configure a different DHCP-RELAY for a different reth you have configuerd on your firewall.

Technology involved: Juniper SRX 1400
Software release: JUNOS Software Release [12.1X46-D15.3]
Description: configuration, into a cluster environment, of the DHCP relay for reth X.Y. Configuration of a different DHCP relay for a different reth K.H. 

Into the image above you can see a simple network schema. This post will descrive the configuration you have to insert on the firewall Juniper SRX1400 to permit that some reth X.Y interface will forward the DHCP request to one DHCP server 01 and others (minimum one interface) will forward the DHCP request to a different DHCP server 02.

All the check you have to perform on the Juniper SRX 1400 are the same described into the previous post: firmware, jdhcpd, etc.

What does it have to change?

The following configuration:

forwarding-options {
    dhcp-relay {
        server-group {
            DHCP-SERVER-01 {
                XXX.YYY.ZZZ.KKK; (this is the ip address of the DHCP-SERVER-01)
            }
            DHCP-SERVER-02 {
                HHH.JJJ.WWW.QQQ; (this is the ip address of the DHCP-SERVER-02)
            }
        }
        group DHCP-SERVER-01-GROUP {
            active-server-group DHCP-SERVER-01;
            interface reth1.41;
            interface reth2.42;
            interface reth1.307;
            interface reth1.305;
        }
        group DHCP-SERVER-02-GROUP {
            active-server-group DHCP-SERVER-02;
            interface reth2.306;

            interface reth2.304
        }
    }
}

I hope this post can help you and your troubleshooting!

Have a nice day!
DiGiTsHaMaN