Telephone Accessories User Manual

Authenticate the Endpoint at the Gatekeeper with an H.323 ID and

Password

Follow these steps to configure the ATA 186 to register with the H.323 ID and password:

Set the AutMethod field to 1 (the default is 1).

The hexadecimal value that is to be configured for this field is 0x1. This field is set to indicate that the

ATA now looks for the password.

Set the UseLoginID field to 1.2.

Configure LoginID0 and LoginID1, with the H.323 IDs for the ATA 186.

The ATA 186 registers as two different H.323 terminals, one for each port.

Configure PWD0 and PWD1 with the password for each port.

Note: The ATA uses the password to generate the token. This token is sent to the gatekeeper for

authentication.

Configure NTPIP with the Network Time Protocol (NTP) servers IP address.

The gatekeeper and the ATA must have clocks synchronized to the same NTP server.

Note: The timestamp is used for token generation. For more information, refer to the Gateway to Gatekeeper

(H.235) and Gatekeeper to Gatekeeper (IZCT) Security Troubleshooting Guide.

This is a sample working configuration for the gatekeeper and gateway when using ATA with the H.323 ID

and password authentication method:

2610−Gatekeeper

aaa authentication login default local

aaa authentication login cisco none

aaa authentication login h323 local

aaa session−id common

enable password ww

username atagw1 password cisco

!−−− Same as the LoginID0 and PWD0 fields.

username atagw2 password cisco

!−−− Same as the LoginID1 and PWD1 fields.

gatekeeper

zone local gk2 cisco.com 172.16.13.12

security token required−for registration

!−−− Register after the H.323 ID or E.164 address and token is authenticated.

no shutdown

Note: For more information on gatekeeper security, refer to the Gateway to Gatekeeper (H.235) and

Gatekeeper to Gatekeeper (IZCT) Security Troubleshooting Guide.