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ip -- error messages

ip may fail for one of the following reasons:

All the operations are atomic, i.e. if the ip utility fails, it does not change anything in the system. One harmful exception is ip link command (Sec.4, p.[*]), which may change only some of the device parameters given on command line.

It is difficult to list all the error messages (especially syntax errors). However, as a rule, their meaning is clear from the context of the command.

The most common mistakes are:

  1. Netlink is not configured in the kernel. The message is:
    Cannot open netlink socket: Invalid value
    

  2. RTNETLINK is not configured in the kernel. In this case one of the following messages may be printed, depending on the command:
    Cannot talk to rtnetlink: Connection refused
    Cannot send dump request: Connection refused
    

  3. The CONFIG_IP_MULTIPLE_TABLES option was not selected when configuring the kernel. In this case any attempt to use the ip rule command will fail, f.e.
    kuznet@kaiser $ ip rule list
    RTNETLINK error: Invalid argument
    dump terminated
    


next up previous contents
Next: ip link Up: ip-cref Previous: ip command   Contents
Martin A. Brown 2003-03-14