Cisco 800 Release Notes page 22

Important Notes
ISDN NI1 Provisioning
If you have any problems with your ISDN NI1 provisioning, visit the Cisco ISDN Web site at
http://www.cisco.com/isdn.
NAT Support for H.323 Signaling
Currently, NAT does not support alerting H.225 messages. Therefore, NAT communication cannot be
established between the router end points. NAT support for H.323 signaling is limited to the Netmeeting
application.
Phone Mate Answering Machine Model 9200
A Phone Mate answering machine model 9200 fails to recognize the ringing signal sent by AMD R79
ringing SLIC. This was confirmed by testing against Phone Mate model 3750 and newer model 9300.
PPP over Frame Relay Support (RFC-1973)
Cisco 800 series routers do not support PPP protocol over Frame Relay.
TACACS+ with AAA
Cisco 800 series routers support the Terminal Access Controller Access Control System Plus
(TACACS+) protocol through Telnet. TACACS+ is a Cisco proprietary authentication protocol that
provides remote access authentication and related network security services, such as event logging. User
passwords are administered in a central database, rather than in individual routers. TACACS+ also
supports separate modular authentication, authorization, and accounting (AAA) facilities that are
configured at individual routers.
For information on how to configure TACACS+, refer to the "Configuring TACACS+" chapter in the
Security Configuration Guide. For information on TACACS+ commands, refer to the "TACACS,
Extended TACACS, and TACACS+ Commands" chapter in the Security Command Reference.
Cisco 800 series routers do not support the following protocols:
•
•
ROM Monitor set stop-bits Parameter
This release supports the setting of 1 only, for the ROM monitor set stop-bits parameter.
Release Notes for the Cisco 800 Series Routers for Cisco IOS Release 12.1(5)YC
22
TACACS, an older access protocol now deprecated by Cisco, or Extended TACACS, an extension
to the TACACS protocol.
RADIUS or Kerberos protocols.
78-12776-04