1 .\" Copyright (c) 2008 Cisco Systems. All rights reserved.
2 .\" Author: Julian Elischer
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30 .Nd set the default FIB (routing table) for the calling process
40 system call sets the associated fib for all sockets opened
41 subsequent to the call, to be that of the argument
46 must be greater than or equal to 0
47 and less than the current system maximum which
48 may be retrieved by the
51 The system maximum is set in the kernel configuration file with
52 .Bd -ragged -offset indent
53 .Cd "options ROUTETABLES=" Ns Em N
60 .Dl net.fibs= Ns Qq Em N
65 This maximum is capped at 65536 due to the implementation storing
66 the fib number in a 16-bit field in the
68 packet header, however it is not suggested that one use such a large number
69 as memory is allocated for every FIB regardless of whether it is used, and
70 there are places where all FIBs are iterated over.
72 The default fib of the process will be applied to all protocol families
73 that support multiple fibs, and ignored by those that do not.
74 The default fib for a process may be overridden for a socket with the use
84 will fail and no action will be taken and return
88 argument is greater than the current system maximum.
97 extension however similar extensions
98 have been added to many other