CENTOS DHCP OPTION 242 setting

[andrew.l.siong]

Hi All,

Anyone did has experience to configure CENTOS DHCP option 242 to integrate with Avaya IP phones with VLANs setting and HTTPS server ?

Thanks in million..!

Rgs
Andrew

[rubberman]

As far as I can tell from my friend Google, this is what you need to do. In the file dhcp.conf (somewhere under /etc) you need to do this (or something like it):

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option domain-name "your.domain";
option option-242 code 242 = string;
ddns-update-style none;
default-lease-time 14400;
#Data VLAN
subnet 192.168.0.0 netmask 255.255.255.0 { 
option domain-name-servers 192.168.0.15, 192.168.0.5;
option routers 192.168.0.9;
option option-242 "L2QVLAN=190,L2Q=1";
range 192.168.0.240 192.168.0.249;
default-lease-time 86400;
max-lease-time 345600;
}
# Voice VLAN
subnet 192.168.190.0 netmask 255.255.255.0 {
option routers 192.168.190.254;
option option-242 "MCIPADD=192.168.190.1,HTTPSRVR=192.168.190.4,HTTP DIR=/,L2QVLAN=190,L2Q=1";
range 192.168.190.201 192.168.190.215;
}

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This is just something I got from the internet - no guarantees since I don't use avaya gear. You will have to alter the IP addresses to suit your network settings. No guarantees, and just my "best effort" to get you going.