Session Monitor Error(Unkown Ip)

[Amr Shaheen]

Following all guides exactly in session.html, session server & client is successfully running however I wonder if someone faced this error before  "Error: You appear to be coming from an unknown IP address. Verify that your computer is set to obtain an IP address automatically via DHCP" 

I' am running

reeside 1.4.1
DBD-Pg-1.22
DBI-1.37
Apache-ASP-2.55
Apache/1.3.28
Debian Sparc (Linux-2.4.20)
postgresql-7.3.4
Perl 5.6.1

Thanks in Advance
Amr