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6to4relay (1)
  • >> 6to4relay (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
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    NAME

    6to4relay - administer configuration for 6to4 relay router communication
     
    

    SYNOPSIS

    /usr/sbin/6to4relay 
    

    /usr/sbin/6to4relay [-e] [-a addr]
    

    /usr/sbin/6to4relay [-d]
    

    /usr/sbin/6to4relay [-h]
    

     

    DESCRIPTION

    The 6to4relay command is used to configure 6to4 relay router communication. Relay router communication support is enabled by setting the value of a variable that stores an IPv4 address within the tun module. This variable is global to all tunnels and defines the policy for communication with relay routers. By default, the address is set to INADDR_ANY (0.0.0.0), and the kernel interprets the value to indicate that support for relay router communication is disabled. Otherwise, support is enabled, and the specified address is used as the IPv4 destination address when packets destined for native IPv6 (non-6to4) hosts are sent through the 6to4 tunnel interface. The 6to4relay command uses a project private ioctl to set the variable.

    6to4relay used without any options outputs the current, in-kernel, configuration status. Use the -a option to send packets to a specific relay router's unicast address instead of the default anycast address. The address specified with the -a option does not specify the policy for receiving traffic from relay routers. The source relay router on a received packet is non-deterministic, since a different relay router may be chosen for each sending native IPv6 end-point.

    Configuration changes made by using the 6to4relay are not persistent across reboot. The changes will persist in the kernel only until you take the tunnel down  

    OPTIONS

    The 6to4relay command supports the following options:

    -a addr

    Use the specified address, addr.

    -e

    Enable support for relay router. Use -a addr if it is specified. Otherwise, use the default anycast address, 192.88.99.1.

    -d

    Disable support for the relay router.

    -h

    Help

     

    OPERANDS

    The following operands are supported:

    addr

    A specific relay router's unicast address. addr must be specified as a dotted decimal representation of an IPv4 address. Otherwise, an error will occur, and the command will fail.

     

    EXAMPLES

    Example 1 Printing the In-Kernel Configuration Status

    Use /usr/sbin/6to4relay without any options to print the in-kernel configuration status.

    example# /usr/sbin/6to4relay
    

    If 6to4 relay router communication is disabled, the administrator will see the following message:

    6to4relay: 6to4 Relay Router communication support is disabled.
    

    If 6to4 router communication is enabled, the user will see this message:

    6to4relay: 6to4 Relay Router communication support is enabled.
    IPv4 destination address of Relay Router = 192.88.99.1
    

     

    EXIT STATUS

    The following exit values are returned:

    0

    Successful completion.

    >0

    An error occurred.

     

    FILES

    /usr/sbin/6to4relay

    The default installation root

     

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    AvailabilitySUNWcsu

    Interface Stability

     

    SEE ALSO

    ifconfig(1M), attributes(5)

    Huitema, C. RFC 3068, An Anycast Prefix for 6to4 Relay Routers. Network Working Group. June, 2001.

    Carpenter, B. and Moore, K. RFC 3056, Connection of IPv6 Domains via IPv4 Clouds. Network Working Group. February, 2001.  

    DIAGNOSTICS

    The 6to4relay reports the following messages:

    6to4relay: input (0.0.0.0) is not a valid IPv4 unicast address
    

    Example:

    The following example provides an incorrect unicast address.

    example# 6to4relay -e -a 0.0.0.0
    

    Description:

    The address specified with the -a option must be a valid unicast address.

    6to4relay: option requires an argument -a
    usage:
       6to4relay
       6to4relay -e [-a <addr>]
       6to4relay -d
       6to4relay -h
    

    Example:

    The following example does not include an argument for the -a option.

    example# 6to4relay -e -a 
    

    Description:

    The -a option requires an argument.

    usage:
       6to4relay
       6to4relay -e [-a <addr>]
       6to4relay -d
       6to4relay -h
    

    Example:

    The following example specifies options that are not permitted.

    example# 6to4relay -e -d
    

    Description:

    The options specified are not permitted. A usage message is output to the screen.

    usage:
       6to4relay
       6to4relay -e [-a <addr>]
       6to4relay -d
       6to4relay -h
    

    Example:

    The following example specifies the -a option without specifying the -e option.

    example# 6to4relay -a 1.2.3.4
    

    Description:

    The -e option is required in conjunction with the -a option. A usage message is output to the screen.

    6to4relay: ioctl (I_STR) : Invalid argument
    

    Example:

    The following example specifies an invalid address.

    example# 6to4relay -e -a 239.255.255.255
    

    Description:

    The address specified with the -a option must not be a class d addr.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPTIONS
    OPERANDS
    EXAMPLES
    EXIT STATUS
    FILES
    ATTRIBUTES
    SEE ALSO
    DIAGNOSTICS


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