Hello

I just noticed something i wasn't aware of, while building up a
wireless access point :

I have FW system with 3 interfaces :
10.0.0.1/8 : local lan (eth0/loc)
192.168.0.254/24 : lan to the ISP routeur (eth1/net)
192.168.2.1/24 : DMZ (eth2/dmz)

Excerpt of the rules-file :
Ping/ACCEPT     loc             $FW
Ping/ACCEPT     dmz            $FW

Excerpt of the policy-file :
net             all             DROP            info
loc             net             ACCEPT
all             all             REJECT          info

So i noticed i can always "reach" all the FW interfaces from LOC and DMZ, ie :
- from a host in DMZ : ping 192.168.0.254 is OK, and ping 10.0.0.1 is OK
- from a host in LOC : ping 192.168.0.254 is OK, and ping 192.168.2.1 is OK

Is it normal ?
I tried changing $FW to $FW:192.168.2.1 (and similar), but it didn't
seem to have the effect i want.

Another thing :
i read somewhere i had to allow ICMP for fragmentation messages, et al.
could anyone point me to a documentation resource explaining why and
what i should enable ?

Thanks in advance.

-- 
Nicolas Pillot ([EMAIL PROTECTED])

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