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To test tcp-md5 do:
* compile and install kernel with TCP_SIGNATURE support
* add this to /etc/ipsec.conf (the md5 'secret' is just a sample)
add 127.0.0.1 127.0.0.1 tcp 0x1000 -A tcp-md5 "0e3a9ac42ceca8260f1d6fbc46a9707c";
* enable it in /etc/rc.conf with
ipsec_enable="YES"
and apply it with sh /etc/rc.d/ipsec start
[ off course you can also manually add it using setkey(8) ]
* compile tcpconnect in here running:
make
* start tcpdump (secret as above, port is just a sample):
tcpdump -l -n -i lo0 -s 0 -M "0e3a9ac42ceca8260f1d6fbc46a9707c" tcp and port 2345
* run the server (use same port as given to tcpdump):
./tcpconnect server 2345
* run the client (use same port as given to tcpdump):
./tcpconnect client 127.0.0.1 2345 1 tcpmd5
* check tcpdump output
# end
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