Hi all,
first we would like to thank you for all the replies we got.
Most of them were very useful, however we didn't understand some
critics for not using a whole class C net. But some of you answered
them very fine, there is nothing to add!
We even thank for a few commercial offers, but we don't want to
use commercial products for several reasons.
Briefly, here is our solution:
We have contacted our provider, and we got a second IP address.
So we could build like this:
-----------
| |
| internet |
| |
-----------
|
|ISDN
----------- ----------- -----------
| |a.b.c.d a.b.c.e| |10.1.1.1 | |
| router |-----------------| firewall |----------|private net|
| PC | | UNIX | | 10.x.y.z |
----------- ----------- -----------
Our IP addresses are already in use, but it will take a few weeks
until a.b.c.e can be translated to our hostname, so we cannot
receive emails yet.
But we have already tested services like ftp, telnet, WWW, news,
and it works ok.
The router uses the KA9Q routing software, and the firewall is
running the TIS fwtk toolkit. They seem to be really good tools!
Thanx again for your support,
matt
rolf
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