Nortel Networks NN46110-602 manual Remote host not responding, Maximum number of sessions reached

74 Chapter 4 Troubleshooting

Remote host not responding

Cause: This indicates that the VPN Router never responded to the IPsec connection attempt or that User Datagram Protocol (UDP) port 500 is blocked.

Action: Verify that the VPN Router is accessible by pinging the host name or IP address that you filled in the destination field. To ping a host called extranet.corp.com, for example, open an MS-DOS command prompt and type ping extranet.corp.com. If you receive a reply message, it indicates that the VPN Router is accessible but is not responding. If you received a message that says Request Timed Out from the ping command, it means that the VPN Router is inaccessible. You can further diagnose the problem using the MS-DOS Trace Route command (tracert.exe) on Windows systems.

The VPN Router allows only a certain number of PING packets from another Internet host before requiring a tunnel connection to be established.

Maximum number of sessions reached

Cause: This indicates that the maximum number of users for the account you are using are currently logged in.

Action: If you are the only user with access to your account, it is possible to get this error if you restarted an IPsec connection immediately after losing the dial-up connection to your ISP. This is because the VPN Router takes up to one minute to determine that your connection is dropped and logs you off from your account. Simply wait a minute and retry your connection.

Login not allowed at this time

Cause: This indicates that your account is limited to specific hours of access and you are trying to connect outside of the allowed time.

Action: Contact your network administrator if you are unsure of your specific hours of access.

Authentication failed

Cause: The IPsec user name is incorrect or the password is invalid for the user name entered.

NN46110-602