Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

Trying to set up option 242 for an Avaya phone demo on our isc dhcp server. I am using the following configuration:

option option-242 code 242 = string; subnet 10.30.0.0 netmask 255.255.0.0 { range 10.30.0.20 10.30.255.254; option subnet-mask 255.255.0.0; option broadcast-address 10.30.255.255; option domain-name-servers 10.30.0.6; option routers 10.30.0.1; option tftp-server-name 10.30.0.6; option option-242 "MCIPADD=10.30.0.4,HTTPSRVR=10.30.0.4"; }

I have also used option option-242 code 242 = text; without any success. I am restarting the daemon after each change.

Using dhcprobe, I get the following:

Got answer from: 10.30.0.6
option 53 DHCP message type 6 (DHCPNAK)
option 54 Server identifier 10.30.0.6
option 56 Message 

Using tcpdump -lenx -s 1500 port bootps or port bootpc -i eth2 | dhcpdump I get the following:

OPTION:  53 (  1) DHCP message type         5 (DHCPACK)
OPTION:  54 (  4) Server identifier         10.30.0.6
OPTION:  51 (  4) IP address leasetime      1440 (24m)
OPTION:   1 (  4) Subnet mask               255.255.0.0
OPTION:  15 ( 25) Domainname                voip.domain.local
OPTION:   6 (  4) DNS server                10.30.0.6
OPTION:   3 (  4) Routers                   10.30.0.1

and

OPTION:  53 (  1) DHCP message type         3 (DHCPREQUEST)
OPTION:  55 ( 13) Parameter Request List      1 (Subnet mask)
                     28 (Broadcast address)
                      2 (Time offset)
                    121 (Classless Static Route)
                     15 (Domainname)
                      6 (DNS server)
                     12 (Host name)
                     40 (NIS domain)
                     41 (NIS servers)
                     42 (NTP servers)
                     26 (Interface MTU)
                    119 (Domain Search)
                      3 (Routers)

Where am I going wrong?

share|improve this question

Your Answer

 
discard

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

Browse other questions tagged or ask your own question.