bogus cache clients?

Hi,

has anyone seen cachemgr.cgi return bogus cache clients?
I just found quite a number of bogus ones with zero ICP
and zero HTTP requests. What would cause this to happen?

This is a squid 2.3.STABLE1 running on Linux 2.0.38 with
libc 5.4.33, ld.so 1.9.9. Thanks.

--
Ambrose Li / +1 416 321 0088 x272 / Ming Pao Newspapers (Canada) Ltd.
                                  / EDP Department @ Toronto
PGP fingerprint = 945C 2CF7 001D 5F03 B026  375F C5CF A55C 9F10 8B0E