bing can only be run by a privilaged user (ie; root), so you may want to reconsider running it from a CGI.

From the manpage:

bing determines bandwidth on a point-to-point link
by sending ICMP ECHO_REQUEST packets and measuring their
roundtrip time for different packet sizes on each end of
the link.

usage: bing [-dDnRPvVwz] host1 host2
    [-c count]
    [-e samples]
    [-i wait]
    [-p pattern]
    [-s small packetsize]
    [-S big packetsize]
    [-t ttl]
    [-I interface address]
[download]

    cheers,
    Don
    striving for Perl Adept
    (it's pronounced "why-bick")