If you have not built libpcap, and your system does not have libpcap
installed, install libpcap first.  Your system might provide a version
of libpcap that can be installed; if so, to compile tcpdump you might
need to install a "developer" version of libpcap as well as the
"run-time" version.  You can also install tcpdump.org's version of
libpcap; see the README file in this directory for the ftp location.

You will need an ANSI C compiler to build tcpdump. The configure script
will abort if your compiler is not ANSI compliant. If this happens, use
the generally available GNU C compiler (GCC).

After libpcap has been built (either install it with "make install" or
make sure both the libpcap and tcpdump source trees are in the same
directory), run ./configure (a shell script).  "configure" will
determine your system attributes and generate an appropriate Makefile
from Makefile.in.  Now build tcpdump by running "make".

If everything builds ok, su and type "make install".  This will install
tcpdump and the manual entry.  Any user will be able to use tcpdump to
read saved captures.  Whether a user will be able to capture traffic
depends on the OS and the configuration of the system; see the tcpdump
man page for details.  DO NOT give untrusted users the ability to
capture traffic.  If a user can capture traffic, he or she could use
utilities such as tcpdump to capture any traffic on your net, including
passwords.

Note that most systems ship tcpdump, but usually an older version.
Remember to remove or rename the installed binary when upgrading.

If your system is not one which we have tested tcpdump on, you may have
to modify the configure script and Makefile.in. Please send us patches
for any modifications you need to make.

Please see "PLATFORMS" for notes about tested platforms.


FILES
-----
CHANGES		- description of differences between releases
CREDITS		- people that have helped tcpdump along
INSTALL.txt	- this file
LICENSE		- the license under which tcpdump is distributed
Makefile.in	- compilation rules (input to the configure script)
README		- description of distribution
Readme.Win32	- notes on building tcpdump on Win32 systems (with WinPcap)
VERSION		- version of this release
aclocal.m4	- autoconf macros
addrtoname.c	- address to hostname routines
addrtoname.h	- address to hostname definitions
ah.h		- IPSEC Authentication Header definitions
appletalk.h	- AppleTalk definitions
atime.awk	- TCP ack awk script
atm.h		- ATM traffic type definitions
atmuni31.h	- ATM Q.2931 definitions
bpf_dump.c	- BPF program printing routines, in case libpcap doesn't
		  have them
chdlc.h		- Cisco HDLC definitions
cpack.c		- functions to extract packed data
cpack.h		- declarations of functions to extract packed data
config.guess	- autoconf support
config.h.in	- autoconf input
config.sub	- autoconf support
configure	- configure script (run this first)
configure.in	- configure script source
ether.h		- Ethernet definitions
ethertype.h	- Ethernet type value definitions
extract.h	- alignment definitions
gmpls.c		- GMPLS definitions
gmpls.h		- GMPLS declarations
gmt2local.c	- time conversion routines
gmt2local.h	- time conversion prototypes
install-sh	- BSD style install script
interface.h	- globals, prototypes and definitions
ip.h		- IP definitions
ip6.h		- IPv6 definitions
ipproto.c	- IP protocol type value-to-name table
ipproto.h	- IP protocol type value definitions
l2vpn.c		- L2VPN encapsulation value-to-name table
l2vpn.h		- L2VPN encapsulation definitions
lbl/os-*.h	- OS-dependent defines and prototypes
llc.h		- LLC definitions
machdep.c	- machine dependent routines
machdep.h	- machine dependent definitions
makemib		- mib to header script
mib.h		- mib definitions
missing/*	- replacements for missing library functions
mkdep		- construct Makefile dependency list
mpls.h		- MPLS definitions
nameser.h	- DNS definitions
netdissect.h	- definitions and declarations for tcpdump-as-library
		  (under development)
nfs.h		- Network File System V2 definitions
nfsfh.h		- Network File System file handle definitions
nlpid.c		- OSI NLPID value-to-name table
nlpid.h		- OSI NLPID definitions
ospf.h		- Open Shortest Path First definitions
packetdat.awk	- TCP chunk summary awk script
parsenfsfh.c	- Network File System file parser routines
pcap_dump_ftell.c - pcap_dump_ftell() implementation, in case libpcap
		doesn't have it
pcap-missing.h	- declarations of functions possibly missing from libpcap
ppp.h		- Point to Point Protocol definitions
print-802_11.c	- IEEE 802.11 printer routines
print-ap1394.c	- Apple IP-over-IEEE 1394 printer routines
print-ah.c	- IPSEC Authentication Header printer routines
print-aodv.c	- AODV printer routines
print-arcnet.c	- ARCNET printer routines
print-arp.c	- Address Resolution Protocol printer routines
print-ascii.c	- ASCII packet dump routines
print-atalk.c	- AppleTalk printer routines
print-atm.c	- ATM printer routines
print-beep.c	- BEEP printer routines
print-bgp.c	- Border Gateway Protocol printer routines
print-bootp.c	- BOOTP and IPv4 DHCP printer routines
print-bt.c	- Bluetooth printer routines
print-cdp.c	- Cisco Discovery Protocol printer routines
print-chdlc.c	- Cisco HDLC printer routines
print-cip.c	- Classical-IP over ATM routines
print-cnfp.c	- Cisco NetFlow printer routines
print-dccp.c	- DCCP printer routines
print-decnet.c	- DECnet printer routines
print-dhcp6.c	- IPv6 DHCP printer routines
print-domain.c	- Domain Name System printer routines
print-dvmrp.c	- Distance Vector Multicast Routing Protocol printer routines
print-eap.c	- EAP printer routines
print-enc.c	- OpenBSD IPsec encapsulation BPF layer printer routines
print-egp.c	- External Gateway Protocol printer routines
print-esp.c	- IPSEC Encapsulating Security Payload printer routines
print-ether.c	- Ethernet printer routines
print-fddi.c	- Fiber Distributed Data Interface printer routines
print-fr.c	- Frame Relay printer routines
print-frag6.c	- IPv6 fragmentation header printer routines
print-gre.c	- Generic Routing Encapsulation printer routines
print-hsrp.c	- Cisco Hot Standby Router Protocol printer routines
print-icmp.c	- Internet Control Message Protocol printer routines
print-icmp6.c	- IPv6 Internet Control Message Protocol printer routines
print-igmp.c	- Internet Group Management Protocol printer routines
print-igrp.c	- Interior Gateway Routing Protocol printer routines
print-ip.c	- IP printer routines
print-ip6.c	- IPv6 printer routines
print-ip6opts.c	- IPv6 header option printer routines
print-ipcomp.c	- IP Payload Compression Protocol printer routines
print-ipx.c	- IPX printer routines
print-isakmp.c	- Internet Security Association and Key Management Protocol
print-isoclns.c	- ISO CLNS, ESIS, and ISIS printer routines
print-krb.c	- Kerberos printer routines
print-l2tp.c	- Layer Two Tunneling Protocol printer routines
print-lane.c	- ATM LANE printer routines
print-llc.c	- IEEE 802.2 LLC printer routines
print-lspping.c	- LSPPING printer routines
print-lwres.c	- Lightweight Resolver protocol printer routines
print-mobile.c	- IPv4 mobility printer routines
print-mobility.c - IPv6 mobility printer routines
print-mpls.c	- Multi-Protocol Label Switching printer routines
print-msdp.c	- Multicast Source Discovery Protocol printer routines
print-nfs.c	- Network File System printer routines
print-ntp.c	- Network Time Protocol printer routines
print-null.c	- BSD loopback device printer routines
print-ospf.c	- Open Shortest Path First printer routines
print-ospf6.c	- IPv6 Open Shortest Path First printer routines
print-pflog.c	- OpenBSD packet filter log file printer routines
print-pgm.c	- Pragmatic General Multicast printer routines
print-pim.c	- Protocol Independent Multicast printer routines
print-ppp.c	- Point to Point Protocol printer routines
print-pppoe.c	- PPP-over-Ethernet printer routines
print-pptp.c	- Point-to-Point Tunnelling Protocol printer routines
print-radius.c	- Radius protocol printer routines
print-raw.c	- Raw IP printer routines
print-rip.c	- Routing Information Protocol printer routines
print-ripng.c	- IPv6 Routing Information Protocol printer routines
print-rrcp.c	- Realtek Remote Control Protocol routines
print-rsvp.c	- Resource reSerVation Protocol (RSVP) printer routines
print-rt6.c	- IPv6 routing header printer routines
print-rx.c	- AFS RX printer routines
print-sctp.c	- Stream Control Transmission Protocol printer routines
print-sip.c	- SIP printer routines
print-sl.c	- Compressed Serial Line Internet Protocol printer routines
print-sll.c	- Linux "cooked" capture printer routines
print-slow.c	- IEEE "slow protocol" (802.3ad) printer routines
print-smb.c	- SMB/CIFS printer routines
print-snmp.c	- Simple Network Management Protocol printer routines
print-stp.c	- IEEE 802.1d spanning tree protocol printer routines
print-sunatm.c	- SunATM DLPI capture printer routines
print-sunrpc.c	- Sun Remote Procedure Call printer routines
print-symantec.c - Symantec Enterprise Firewall printer routines
print-tcp.c	- TCP printer routines
print-telnet.c	- Telnet option printer routines
print-tftp.c	- Trivial File Transfer Protocol printer routines
print-timed.c	- BSD time daemon protocol printer routines
print-token.c	- Token Ring printer routines
print-udp.c	- UDP printer routines
print-usb.c	- USB printer routines
print-vjc.c	- PPP Van Jacobson compression (RFC1144) printer routines
print-vrrp.c	- Virtual Router Redundancy Protocol
print-wb.c	- White Board printer routines
print-zephyr.c	- Zephyr printer routines
rpc_auth.h	- definitions for ONC RPC authentication
rpc_msg.h	- definitions for ONC RPC messages
send-ack.awk	- unidirectional tcp send/ack awk script
setsignal.c	- OS-independent signal routines
setsignal.h	- OS-independent signal prototypes
slcompress.h	- SLIP/PPP Van Jacobson compression (RFC1144) definitions
smb.h		- SMB/CIFS definitions
smbutil.c	- SMB/CIFS utility routines
stime.awk	- TCP send awk script
strcasecmp.c	- missing routine
tcp.h		- TCP definitions
tcpdump.1	- manual entry
tcpdump.c	- main program
udp.h		- UDP definitions
util.c		- utility routines
vfprintf.c	- emulation routine
win32		- headers and routines for building on Win32 systems