2.51. PPP

These log messages refer to the PPP (PPP tunnel events) category.

2.51.1. ip_pool_empty (ID: 02500001)

Default Severity
WARNING
Log Message
IPCP can not assign IP address to peer because the IP address pool is empty
Explanation
IPCP can not assign an IP address to the peer because there are no free IP addresses in IP address pool.
Firewall Action
failed_ipcp_address_assignment
Recommended Action
Increase the number of IP addresses in the IP address pool to allow all connecting clients to be assigned a unique IP address.
Revision
1
Parameters
tunnel_type

2.51.2. ip_address_required_but_not_received (ID: 02500002)

Default Severity
WARNING
Log Message
IP address required but not received. PPP terminated
Explanation
Peer refuses to give out an IP address. Since an IP address lease is required, PPP is terminated.
Firewall Action
ppp_terminated
Recommended Action
None
Revision
1
Parameters
tunnel_type

2.51.3. primary_dns_address_required_but_not_received (ID: 02500003)

Default Severity
WARNING
Log Message
Primary DNS address required but not received. PPP terminated
Explanation
Peer refuses to give out a primary DNS address. Since reception of a primary DNS address is required, PPP is terminated.
Firewall Action
ppp_terminated
Recommended Action
None
Revision
1
Parameters
tunnel_type

2.51.4. seconday_dns_address_required_but_not_received (ID: 02500004)

Default Severity
WARNING
Log Message
Secondary DNS address required but not received. PPP terminated
Explanation
Peer refuses to give out a secondary DNS address. Since reception of a secondary DNS address is required, PPP is terminated.
Firewall Action
ppp_terminated
Recommended Action
None
Revision
1
Parameters
tunnel_type

2.51.5. primary_nbns_address_required_but_not_received (ID: 02500005)

Default Severity
WARNING
Log Message
Primary NBNS address required but not received. PPP terminated
Explanation
Peer refuses to give out a primary NBNS address. Since reception of a primary NBNS address is required, PPP is terminated.
Firewall Action
ppp_terminated
Recommended Action
None
Revision
1
Parameters
tunnel_type

2.51.6. seconday_nbns_address_required_but_not_received (ID: 02500006)

Default Severity
WARNING
Log Message
Secondary NBNS address required but not received. PPP terminated
Explanation
Peer refuses to give out a secondary NBNS address. Since reception of a secondary NBNS address is required, PPP is terminated.
Firewall Action
ppp_terminated
Recommended Action
None
Revision
1
Parameters
tunnel_type

2.51.7. failed_to_agree_on_authentication_protocol (ID: 02500050)

Default Severity
ERROR
Log Message
Failed to agree on authentication protocol. PPP terminated
Explanation
Failed to agree on PPP authentication protocol. PPP is terminated.
Firewall Action
ppp_terminated
Recommended Action
Review the allowed authentication protocols configured. The client and server must be configured to have at least one authentication protocol in common.
Revision
1
Parameters
tunnel_type

2.51.8. peer_refuses_to_use_authentication (ID: 02500051)

Default Severity
ERROR
Log Message
Peer refuses to use authentication. PPP terminated
Explanation
Peer refuses to use any authentication at all. PPP is terminated since we demand authentication.
Firewall Action
ppp_terminated
Recommended Action
Review the allowed authentication types configured. The client and server must be configured to have at least one authentication type in common.
Revision
1
Parameters
tunnel_type

2.51.9. lcp_negotiation_stalled (ID: 02500052)

Default Severity
ERROR
Log Message
LCP negotiation stalled. PPP terminated
Explanation
PPP LCP negotiation stalled. Terminating PPP since the peer persistently demands the use of an LCP option that is unsupported.
Firewall Action
ppp_terminated
Recommended Action
Try to reconfigure the peer so it does not demand the use of this LCP option.
Revision
1
Parameters
tunnel_type
unsupported_lcp_option

2.51.10. ppp_tunnel_limit_exceeded (ID: 02500100)

Default Severity
ALERT
Log Message
PPP Tunnel license limit exceeded. PPP terminated
Explanation
PPP is terminated because the license restrictions do not allow any more PPP tunnels. No new PPP tunnels can be established until an existing one is closed.
Firewall Action
ppp_terminated
Recommended Action
Upgrade your license to allow more simultaneous PPP tunnels.
Revision
1
Parameters
tunnel_type
limit

2.51.11. authentication_failed (ID: 02500101)

Default Severity
WARNING
Log Message
Authentication failed. PPP terminated
Explanation
Authentication failed. PPP terminated.
Firewall Action
ppp_terminated
Recommended Action
Make sure that the right username and password is used.
Revision
1
Parameters
tunnel_type
user

2.51.12. response_value_too_long (ID: 02500150)

Default Severity
WARNING
Log Message
PPP CHAP response value was truncated because it was too long
Explanation
PPP CHAP response value was truncated because it was too long.
Firewall Action
chap_response_value_truncated
Recommended Action
None
Revision
1
Parameters
tunnel_type

2.51.13. username_too_long (ID: 02500151)

Default Severity
WARNING
Log Message
PPP CHAP username was truncated because it was too long
Explanation
PPP CHAP username was truncated because it was too long.
Firewall Action
chap_username_truncated
Recommended Action
Reconfigure the endpoints to use a shorter username.
Revision
1
Parameters
tunnel_type

2.51.14. username_too_long (ID: 02500201)

Default Severity
WARNING
Log Message
PPP MSCHAPv1 username was truncated because it was too long
Explanation
PPP MSCHAPv1 username was truncated because it was too long.
Firewall Action
mschapv1_username_truncated
Recommended Action
Reconfigure the endpoints to use a shorter username.
Revision
1
Parameters
tunnel_type

2.51.15. username_too_long (ID: 02500301)

Default Severity
WARNING
Log Message
PPP MSCHAPv2 username was truncated because it was too long
Explanation
PPP MSCHAPv2 username was truncated because it was too long.
Firewall Action
mschapv2_username_truncated
Recommended Action
Reconfigure the endpoints to use a shorter username.
Revision
1
Parameters
tunnel_type

2.51.16. username_too_long (ID: 02500350)

Default Severity
WARNING
Log Message
PPP PAP username was truncated because it was too long
Explanation
PPP PAP username was truncated because it was too long.
Firewall Action
pap_username_truncated
Recommended Action
Reconfigure the endpoints to use a shorter username.
Revision
1
Parameters
tunnel_type

2.51.17. password_too_long (ID: 02500351)

Default Severity
WARNING
Log Message
PPP PAP password was truncated because it was too long
Explanation
PPP PAP password was truncated because it was too long.
Firewall Action
pap_password_truncated
Recommended Action
Reconfigure the endpoints to use a shorter password.
Revision
1
Parameters
tunnel_type

2.51.18. one_time_password_too_long (ID: 02500352)

Default Severity
WARNING
Log Message
PPP PAP one time password was truncated because it was too long
Explanation
PPP PAP one time password was truncated because it was too long.
Firewall Action
pap_one_time_password_truncated
Recommended Action
Reconfigure the endpoints to use a shorter one time password.
Revision
1
Parameters
tunnel_type

2.51.19. radius_state_id_too_long (ID: 02500353)

Default Severity
WARNING
Log Message
PPP PAP Radius state ID was truncated because it was too long
Explanation
PPP PAP Radius state ID was truncated because it was too long.
Firewall Action
pap_radius_state_id_truncated
Recommended Action
Reconfigure the endpoints to use a shorter Radius state ID.
Revision
1
Parameters
tunnel_type

2.51.20. unsupported_auth_server (ID: 02500500)

Default Severity
ERROR
Log Message
Unsupported authentication server. PPP Authentication terminated
Explanation
Unsupported authentication server. PPP Authentication terminated.
Firewall Action
authentication_terminated
Recommended Action
Review the authentication server configuration.
Revision
1
Parameters
tunnel_type

2.51.21. radius_error (ID: 02500501)

Default Severity
ERROR
Log Message
Radius server authentication error. PPP Authentication terminated
Explanation
There was an error while authenticating using a radius server. PPP Authentication terminated.
Firewall Action
authentication_terminated
Recommended Action
None
Revision
1
Parameters
tunnel_type

2.51.22. authdb_error (ID: 02500502)

Default Severity
ERROR
Log Message
Local database authentication error. PPP Authentication terminated
Explanation
There was an error while authenticating using a local user database. PPP Authentication terminated.
Firewall Action
authentication_terminated
Recommended Action
None
Revision
1
Parameters
tunnel_type

2.51.23. ldap_error (ID: 02500503)

Default Severity
ERROR
Log Message
LDAP server authentication error. PPP Authentication terminated
Explanation
There was an error while authenticating using a LDAP server. PPP Authentication terminated.
Firewall Action
authentication_terminated
Recommended Action
None
Revision
1
Parameters
tunnel_type

2.51.24. MPPE_decrypt_fail (ID: 02500600)

Default Severity
ERROR
Log Message
MPPE decryption resulted in the unsupported protocol <protocol>. Terminating PPP
Explanation
MPPE decryption resulted in an unsupported protocol. IP is the only protocol supported. This either means that the decryption failed or that the peer actually sent data using an unsupported protocol. PPP is terminated.
Firewall Action
ppp_terminated
Recommended Action
Reconnect the tunnel. If the peer keeps sending the same unsupported protocol, try to reconfigure the peer to only send IP packets through the tunnel.
Revision
1
Parameters
protocol

2.51.25. iface_id_required_but_not_received (ID: 02500700)

Default Severity
WARNING
Log Message
Zero Interface ID . PPP terminated
Explanation
Peer refused to give out an interface ID required to build the local IPv6 address. Quitting.
Firewall Action
ppp_terminated
Recommended Action
None
Revision
1
Parameters
tunnel_type