if.ignore(SFF)                                                if.ignore(SFF)

 Name

    if.ignore - data base of ignored network interfaces

 Description

    The if.ignore file allows a system administrator to specify network
    interfaces that should be ignored by certain network applications.  The
    level of ``ignorance'' is determined by the individual application.  This
    file is referenced by the ifignore library function.

    Each line of the file has the following format:

       interface       [ server ] [ server ] ...

    Items are separated by any number of blanks and/or tab characters.  The
    server names are optional and specify network daemons which should ignore
    the given interface.  If no server names are supplied on a particular
    line, the corresponding interface should be ignored by all network dae-
    mons which consult this file.  Currently, these are routed(ADMN),
    rwhod(ADMN), and timed(ADMN).

 Files

    /etc/if.ignore

 Examples

    The following example illustrates how the if.ignore file might be used:

       sl0     rwhod timed
       sl1     routed
       ppp0    routed rwhod timed

    No rwhod or timed packets should be broadcast over the sl0 or ppp0 inter-
    faces.  Likewise, no routed packets should be broadcast over the sl1 or
    ppp0 interfaces.  Furthermore, the ifignore() library function returns
    zero for any interfaces other than ppp0, sl0, or sl1.

 See also

    ifignore(SLIB), routed(ADMN), rwhod(ADMN), timed(ADMN)