Agent fails

[MohdIzhar]

docker run -it --name agent --net mynet --link web:insideweb --link mailer:insidemailer dockerinaction/ch2_agent
BusyBox v1.22.1 (2014-05-22 23:22:11 UTC) multi-call binary.

Usage: nc [-iN] [-wN] [-l] [-p PORT] [-f FILE|IPADDR PORT] [-e PROG]

Open a pipe to IP:PORT or FILE

    -l      Listen mode, for inbound connects
            (use -ll with -e for persistent server)
    -p PORT Local port
    -w SEC  Connect timeout
    -i SEC  Delay interval for lines sent
    -f FILE Use file (ala /dev/ttyS0) instead of network
    -e PROG Run PROG after connect

BusyBox v1.22.1 (2014-05-22 23:22:11 UTC) multi-call binary.

Usage: nc [-iN] [-wN] [-l] [-p PORT] [-f FILE|IPADDR PORT] [-e PROG]

Open a pipe to IP:PORT or FILE

    -l      Listen mode, for inbound connects
            (use -ll with -e for persistent server)
    -p PORT Local port
    -w SEC  Connect timeout
    -i SEC  Delay interval for lines sent
    -f FILE Use file (ala /dev/ttyS0) instead of network
    -e PROG Run PROG after connect

Also exited with Error code 0