Help, Gatekeeper and ATA Registration Problem

[orangel]

I have a registration problem with a gatekeeper IOS and ATA's 186 H323 Signaling.

When lost a wan connection the problem it happens, when the communication is ok the ATA not is registered in gatekeeper

I check the IP UDP and TCP connection to the ATA LAN to the gatekeeper interface an is ok, the ras packeets and messages are received to the gatekeeper

In debug ras indicate that the paquets are received

This is the configuration and debug ras output

gatekeeper

zone local gk.aeromexpress.com.mx aeromexpress.com.mx

zone prefix gk.aeromexpress.com.mx 111*

zone prefix gk.aeromexpress.com.mx 111* gw-default-priority 10

accounting username xxx

gw-type-prefix 111* default-technology gw ipaddr 172.25.18.53 1720

bandwidth total default 720

bandwidth session default 64

bandwidth session zone gk.aeromexpress.com.mx 768

bandwidth remote 720

bandwidth check-destination

no shutdown

DEBUG "THE PROBLEM IN THIS OUTPUT IS WHIT IP 172.25.142.3"

[mchin345]

For authenticating using login and password you need a radius server. On the gatekeper you need the security token required-for command. Here is a link that explains it

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121t/121t1/h323v2p2.htm#xtocid255056