7/11/11
Description
The network contains Avaya IP phones that may not have PC's connected to them.
There is a need to assign a voice vlan and tag the vlan over 802.1Q.
Although these values can be assigned by programming them directly to the Avaya IP phone, it can also be done automatically using DHCP options. Network Sentry's DHCP server can be configured to assign these values. When the phone connects to a network where Network Sentry acts as the DHCP server (such as a Registration VLAN), Network Sentry will provide these configurations.
Requirements
Admin access to the Campus Manager CLI
Avaya 4621/4602 IP phones
Avaya 3800 IP phones
Important: Once dhcpd.conf is customized, Configuration Wizard can no longer be used to add DHCP scopes. The next time ConfigWizard is run, the edits would be overwritten. Therefore, if needing to re-run ConfigWizard to change other configurations (ip, static routes, etc), be sure to backup the dhcpd.conf first, then replace once ConfigWizard is run.
Procedure
1. Access Network Sentry Server/Application Server CLI.
2. Type config <enter> to navigate to /bsc/siteConfiguration directory.
3. Make a backup copy of the dhcpd.conf file.
4. Stop the DHCP service.
service dhcpd stop
5. Make the following edits using VI to the /bsc/siteConfiguration/dhcpd.conf file at the top of the DHCP file place the following lines
* option AVAYA176 code 176 = text;
* option AVAYA242 code 242 = text;
at the bottom of the registration scope place the following lines
* option AVAYA176 "MCIPADD=10.2.241.5,MCPORT=1719,TFTPDIR=/avaya/IPT46_R9.033b/,TFTPSRVR=10.0.10.108,L2Q=1,L2QVLAN=241,VLANTEST=60";
* option AVAYA242 "MCIPADD=10.2.241.5,MCPORT=1719,TFTPDIR=/avaya/IPT46_R9.033b/,TFTPSRVR=10.0.10.108,L2Q=1,L2QVLAN=241,VLANTEST=60";
6. Save the configuration changes
7. Start the DHCP service
service dhcpd start
Explanation of commands:
option AVAYA176 code 176 = text;
* enables option commands for Avaya 4621 and 4602 IP Phones
option AVAYA242 code 242 = text;
* enables option commands for Avaya 3800 IP Phones
TFTPDIR=/avaya/IPT46_R9.033b/
* TFTP directory where the IP phones gets information
TFTPSRVR=10.0.10.108
* TFTP Server IP address
L2Q=1
* enable Q tag
L2QVLAN=241
* assign vlan 241 to the IP phone
VLANTEST=60
* test the vlan for 60 seconds upon bootup
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