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dear friend,
i am facing a problem in my setup.
i have attached the diagram of my
setup.
as shown in the diagram i have many zones which are
protected by the firewall.the firewall is Checkpoint Fw-1 ver 4.1
SP2
i have my firewall operational on Solaris
6.
Zone B has webservers and ftp servers which are
being accessed from the internet.
Zone C is the zone where we have the
employee's PCs.
yesterday, one of our employees changed his PC's ip
to the ip of the firewall . he allotted to his PC the ip of the firewall's Zone
C arm .Even after the machine detected ip clash, the employee accepted the
warning and continued with change of IP.thus he allotted the ip of the
firewall's zone C arm.
after this my firewall crashed.i mean to say
that the firewall was not accepting any connection from anywhere.the firewall
was not accepting any connection whether it originated from /ended at Zone A or
Zone B or internet ( our webserver and ftp server was not accessible from
internet) .
after this i have disconnected the employee's PC
and restarted firewall.Now the firewall is working fine.
but i am worried if i face this again.
how can i prevent this happening
again?do i need to do something on the OS configuration of the firewall
machine or alter some firewall settings?
please guide me.please feel free to contact
me.
thanks in advance
regards
shameek
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