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I have a strange problemn and would really apreciate Help.
I've got a range of public adresses coming from my isp let's say
123.234.123.160/28
I need to have a masqued network and a DMZ on the same fw.
Here's a schema.
INTERNET
|
|
ISP's ROUTER
|
eth0 |
+-------+---------+
| |
| | eth1
| +----------------------
| | 123.234.123.160/28
| 192.168.1.254 |
+-------+---------+
eth2 |
|
|
When we set up the router with my ISP they suggested (if I don't want to
loose any adresses of the range of ip)
to have private adressing between them and me (eth0).
The result is that the fw can't get out to the world, because their router
only route paquets coming from 123.234.123.160/28.
The machines with 123.234.123.161->174 works fine...but the network is
masqued as coming from the fw's IP next to the router, and they don't access
the world.
On my mind, if those machines seems to come from 123.234.123.16x (an ip that
we would reserve), it would work.
For the moment, we've been obliged to divide the range of adresses :
123.234.123.160/30 btw the ISP's router and Fw and 174/28 for the DMZ, the
local network is masqued as 123.234.123.161 and everithing's OK, but we've
lost a part of our rang of ip....
Thanks for help
Sebastien JALLOT
Network and system Consultant
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