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IPPrint
Tom Barbette edited this page Aug 6, 2018
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IPPrint — Click element; pretty-prints IP packets
IPPrint([LABEL, KEYWORDS])
Ports: 1 input, 1 output
Processing: agnostic
Expects IP packets as input. Should be placed downstream of a CheckIPHeader or equivalent element.
Prints out IP packets in a human-readable tcpdump-like format, preceded by the LABEL text.
Keyword arguments are:
- CONTENTS — Determines whether the packet data is printed. It may be `NONE' (do not print packet data), `HEX' (print packet data in hexadecimal), or `ASCII' (print packet data in plaintext). Default is `NONE'.
- PAYLOAD — Like CONTENTS, but prints only the packet payload, rather than the entire packet. Specify at most one of CONTENTS and PAYLOAD.
- MAXLENGTH — If CONTENTS or PAYLOAD printing is on, then MAXLENGTH determines the maximum number of bytes to print. -1 means print the entire packet or payload. Default is 1500.
- ID — Boolean. Determines whether to print each packet's IP ID field. Default is false.
- TTL — Boolean. Determines whether to print each packet's IP TOS field. Default is false.
- TOS — Boolean. Determines whether to print each packet's IP TOS field. Default is false.
- LENGTH — Boolean. Determines whether to print each packet's IP length field. Default is false.
- TIMESTAMP — Boolean. Determines whether to print each packet's timestamp in seconds since 1970. Default is true.
- AGGREGATE — Boolean. Determines whether to print each packet's aggregate annotation. Default is false.
- PAINT — Boolean. Determines whether to print each packet's paint annotation. Default is false.
- SWAP — Boolean. Determines whether to print ICMP sequence and ID numbers in network order. Default is true. The RFC does not require these two-byte values to be sent in any particular byte order. When Click was originally designed, Linux/i386 wrote ping sequence numbers in host byte order (often little endian), but it uses network order now.
- OUTFILE — String. Only available at user level. Print information to the file specified by OUTFILE instead of standard error.
- ACTIVE — Boolean. If false, then don't print messages. Default is true.
Generated by click-elem2man from ../elements/ip/ipprint.hh:6 on 2018/08/06.