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CheckGREHeader -- Click element; checks GRE header
CheckGREHeader([keywords OFFSET, CHECKSUM, KEY, SEQUENCE, VERBOSE, DETAILS])
Ports: 1 input, 1-2 outputs
Input packets should have GRE headers starting OFFSET bytes in. Default OFFSET is zero. Checks that the packet's length is reasonable, and that the GRE version, checksum, key, and sequence fields are valid. CheckGREHeader emits valid packets on output 0. Invalid packets are pushed out on output 1, unless output 1 was unused; if so, drops invalid packets. CheckGREHeader prints a message to the console the first time it encounters an incorrect GRE packet (but see VERBOSE below). Keyword arguments are:
drop_detailshandler. False by default.
Generated by 'click-elem2man' from 'gre/checkgreheader.hh:27' on 17/Jan/2012.