Date: Sun, 04 Mar 2001 21:16:47 -0500 From: Mike Tancsa <mike@sentex.net> To: wash@iconnect.co.ke (Odhiambo Washington) Cc: questions@freebsd.org Subject: Re: Multiport Ethernet Cards Message-ID: <grr5atch9pj87q7s3fbci6f5u2bma92opb@4ax.com> In-Reply-To: <SEN.983542675.38568437@news.sentex.net> References: <SEN.983542675.38568437@news.sentex.net>
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On 2 Mar 2001 09:17:55 -0500, in sentex.lists.freebsd.questions you = wrote: >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? Yes, DLINK makes a 4 port ethernet card that works well with FreeBSD. However, you might be better off using a 24port VLAN (802.1q) capable switch, and 2 intel fxp NICs, and then use the VLAN patches at http://www.euitt.upm.es/~pjlobo/fbsdvlan.html > >PROBLEM 1: I do not want NetBIOS broadcasts resulting in every client = being able to 'see' all his=20 > neighboring networks (you know that Network Neighborhood = thing in Windows)??. Can I filter=20 > packets so that each network receives only packets destined = to their net? Yes. What plain old layer 2 switches were to collision domains, vlans enabled switches are to broadcast domains. Give each port on the 24 port switch a unique vlan, have the port that your FreeBSD box connects to = pass all vlans, and then setup 20 VLAN interfaces on your FreeBSD box, one for each VLAN/client. If you really want to save money, have a look around on ebay for an IBM 8271 switch. (I bought a 24 port version of $150 USD) It can do 802.1q VLANs with a free software upgrade from IBM. There are = others as well you can pick up for a good price. But be careful. Some switches say "vlan capable", but its their own non standard version. Also, dont bother with all 100baseT port switches if you are only going to send 64K down each port. > > >PROBLEM 2: I would like to enure that there is adequate security for = each client network. I also want to control=20 > bandwidth for every client. Client 1 needs on 16K bandwidth = while Client 2 needs 64K. Can I do this with=20 > FreeBSD (ipfw/dummynet)??? ipfw and dummynet will do this for you. But do you really want to = allocate 16K per work station ?=20 ---Mike Mike Tancsa (mdtancsa@sentex.net) =09 Sentex Communications Corp, =09 Waterloo, Ontario, Canada "Given enough time, 100 monkeys on 100 routers=20 could setup a national IP network." (KDW2) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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