Network Desing with Portmaster

Joe Camilleri (joec@aca.ca)
Tue, 10 Oct 1995 14:36:45 -0400

I am new to this list and I have searched the archive to find answers
to my following questions but did not find an answer. So I turn to
you experts for help:

I am setting up an ISP using the Portmasters and have the following
(probably basic) requirements:

1) 150 Ports assigned for dynamic IP addresses.
2) 150 Ports assinged for static IP addresses ( these are for small
companies that require DNS services)

I was thinking of obtaining two class C addresses

The servers (mail, news, dns, others) and the 5 Portmasters for the
dynamic IP addresses are on one network.

The 5 Portmasters for the static IP addressing are on another
network.

Put a router between the two nets.

OR

Use one lan segment with 2 Class C addresses (multinet?)

Which solution do you ISPs use and what are the pros and cons of
each? Is there any other way of desiging the network.

Other Questions:

Can you set a Portmaster as follows:

22 Ports using 1 Hunt Group and set to 14.4Kbps
6 Ports using another hunt group and set to 28.8kbps
2 Ports using a different phone number for dial-up dedicated access.

How do you authenticate if the user calling a number really belongs
in that group?

Many thanks.

Joe.