Brooks Carlson schrieb:

> I have specified under Valid Addresses:  Others.
>
> This group contains Internal_Net (with broadcast allowed),
> InternalDHCPServer
> with IP 255.255.255.255, and ExternalIPs (for NAT translation back to
> internet).
>
> It still doesn't work.  Rule 0 is still blocking.  Please note that
> DHCP is NOT running on the firewall, separate machine with 10.0.0.4 address.

So the DHCP server is on a DIFFERENT interface than the clients trying to obtain
an IP address?!??

> It seems like maybe
> this is not working because it is basing the spoofing on the source address
> which is nothing, instead of the destination address 255.255.255.255.

Yes, you are right - I just was not sure about the source when doing DHCP resp.
BOOTP.
Change that to 0.0.0.0 for anti-spoofing.

Bye
    Volker

--

Volker Tanger  <[EMAIL PROTECTED]>
 Wrangelstr. 100, 10997 Berlin, Germany
    DiSCON GmbH - Internet Solutions
         http://www.discon.de/


-
[To unsubscribe, send mail to [EMAIL PROTECTED] with
"unsubscribe firewalls" in the body of the message.]

Reply via email to