Date: Fri, 2 Mar 2001 17:18:12 +0300 From: Odhiambo Washington <wash@iconnect.co.ke> To: FBSD-Q <freebsd-questions@freebsd.org> Cc: Naitore Lukongodo <naito@iconnect.co.ke> Subject: Multiport Ethernet Cards Message-ID: <20010302171812.A629@poeza.iconnect.co.ke>
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Here is an easy one for the networking gurus ;-).
I am thinking of a situation where I need to wire a building so that it is 'Internet Ready'.
One option is to deploy a hardware (Cisco) router and a hardware bandwidth manager.
OTOH, an option I am thinking of involves the use of FreeBSD as the 'router'/bandwidth manager
but here are where my MAJOR concerns come in:
I will obtain a DSL connection to an ISP and connect the building from some central place within.
Then I will give one 'access point' to every office on all the floors. At this point, a particular
office will cascade their own hub/switch. They will also end up having a private class C address for
themselves.
Here is the digrammatic representation:
192.168.50.0/24
--------
| Client1| \
-------- \
HUB 1 \
\
\ ++++
\ | S | ---
-------- \| W | | R | DSL Modem
| Client2|--------| I | | O | ++++
-------- /| T |----->| U | | D |
HUB 2 / | C | | T |----->| S | ---------->>> Internet
192.168.60.0/24/ | H | | E | | L |
/ | | | R | | |
/ ++++ | | ++++
--------- / ---
| Client 3| FreeBSD 4.x
--------
HUB 3
192.168.70.0/24
I am looking at a scenario where I have more than 20 independent clients. They are ALL running Windows, of course.
PROBLEM 1: Is FreeBSD capable of allowing me to use 5 multiport Ethernet cards (say each is 4-port),
so that I end up with 20 ethernet interfaces? Will all be usable?
PROBLEM 1: I do not want NetBIOS broadcasts resulting in every client being able to 'see' all his
neighboring networks (you know that Network Neighborhood thing in Windows)??. Can I filter
packets so that each network receives only packets destined to their net?
PROBLEM 2: I would like to enure that there is adequate security for each client network. I also want to control
bandwidth for every client. Client 1 needs on 16K bandwidth while Client 2 needs 64K. Can I do this with
FreeBSD (ipfw/dummynet)???
Does anyone have experience with this?
Is this a cost-effective solution administrative-wise? (I mean admin overheads)
I can still do some clarifications if they're called for.
Thanking you in advance.
-Wash
--
Odhiambo Washington Inter-Connect Ltd.,
wash@iconnect.co.ke 5th Flr Furaha Plaza
Tel: 254 11 222604 Nkrumah Rd.,
Fax: 254 11 222636 PO Box 83613 MOMBASA, KE.
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