Failed to ping the other side with X.25 on both sides being up

Despite X.25 being up on both sides, the other side cannot be pinged.

The following are possible causes:

• The local X.121 address is not configured.

• The address mapping of the two sides is not configured on the local end.

• The peer's X.121 address is not configured.

• The address mapping of the two sides is not configured on the remote end.

• The channel range is not correct.

• Some wrong user facilities are carried.

• If addresses are not correct, change them to the correct ones.

• For the last two causes, contact the network administrator to get the correct channel range and user facilities.