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- doippkt is a utility that helps to build a datagram which can be send over
- a TCP/IP network. It calculates checksum and packet lengths. The syntax
- is:
-
- doippkt [infile] [outfile]
-
- Every line is interpreted upon the first char in it. The allowd charter
- are:
-
- char meanning Example
- # a comment # this is an example
- c 1 byte decimal c34
- u 2 byte decimal d8231
- b 1 byte hex b7A
- w 2 byte word wAAD0
- s a string sFoo Bar
- d udp separator
- i icmp separator
- t tcp separator
- e ethernet separator
-
- e is mandatory and divides ethernet header and TCP/IP info. d,i or t
- divide IP header and respective header. As i said the fields involving
- checksums and length are automatically calculated and should be left
- blank.
-
-