Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 13 Nov 2001 09:09:10 -0600
From:      Albert Everett <freebsd@webintl.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: Max number of NIC's and aliases
Message-ID:  <a05100300b816e6af70b0@[192.168.123.20]>
In-Reply-To: <3BF01F2F.D166ACC3@lmco.com>
References:  <002f01c16b82$01f46940$1401a8c0@tedm.placo.com> <3BF01F2F.D166ACC3@lmco.com>

next in thread | previous in thread | raw e-mail | index | archive | help
Perhaps someone could answer the original question: are there any 
practical limits to the number of ip aliases one can add to a nic?

The follow-on questions: does the routing solution do the right thing 
for setting up multiple SSL-enabled web sites, and if so, how do you 
do it?

Albert

>I beg to disagree.  I have in the past set up a number of research
>scenarios where it was desirable to use 'a ton of aliases' to create
>a ton of subnets, each with different characteristics.  These different
>subnets are in turn routed through different devices downstream
>based on their subnets.  It is very convenient to use a subnet and
>an alias to pick out a certain pathway through a maze of  simulation
>devices and nodes that are all interconnected.
>
>Rick
>
>Ted Mittelstaedt wrote:
>
>>  Because it's totally, completely stupid to put 64 aliases on a FreeBSD
>>  interface with you can simply route a /26 to it.
>>
>>  Ted Mittelstaedt                                       tedm@toybox.placo.com
>>  Author of:                           The FreeBSD Corporate Networker's Guide
>>  Book website:                          http://www.freebsd-corp-net-guide.com
>>
>>  >-----Original Message-----
>>  >From: owner-freebsd-questions@FreeBSD.ORG
>>  >[mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Noor Dawod
>>  >Sent: Monday, November 12, 2001 3:05 AM
>>  >To: Guido Fortunati
>>  >Cc: freebsd-questions@FreeBSD.ORG
>>  >Subject: RE: Max number of NIC's and aliases
>>  >
>>  >
>>  >Hmm, quite interesting.. if there's a known bug in BIND as you say, why
>>  >no one fixes it?
>>  >
>>  >Noor
>>  >
>>  >
>>  >-----Original Message-----
>>  >From: Guido Fortunati [mailto:zuez@smartdigitalinc.com]
>>  >Sent: Monday, November 12, 2001 12:57 PM
>>  >To: 'Noor Dawod'
>>  >Subject: RE: Max number of NIC's and aliases
>>  >
>>  >
>>  >I don't think there's a limit for aliases.
>>  >But afaik, there's a bug when using BIND that prevents named from
>>  >starting
>>  >properly when there are more than 64 aliases on an interface.
>>  >Besides that, i don't think you'll have any problem using as many
>>  >aliases as you want.
>>  >
>>  >-guido
>>  >
>>  >
>>  >-----Original Message-----
>>  >From: owner-freebsd-questions@FreeBSD.ORG
>>  >[mailto:owner-freebsd-questions@FreeBSD.ORG] On Behalf Of Noor Dawod
>>  >Sent: Lunes, 12 de Noviembre de 2001 07:45 a.m.
>>  >To: Ted Mittelstaedt; freebsd-questions@FreeBSD.ORG
>>  >Subject: RE: Max number of NIC's and aliases
>>  >
>>  >
>>  >And what about the aliases? How many aliases can FreeBSD or a NIC
>>  >handle?
>>  >
>>  >Noor
>>  >
>>  >
>>  >-----Original Message-----
>>  >From: Ted Mittelstaedt [mailto:tedm@toybox.placo.com]
>>  >Sent: Monday, November 12, 2001 12:25 PM
>>  >To: Noor Dawod; freebsd-questions@FreeBSD.ORG
>  > >Subject: RE: Max number of NIC's and aliases
>  > >
>  > >
>  > >No to both - but consider the speed of the average PCI bus.  Your not
>  > >going to be able to keep a bunch of NICS in saturation on a PC,
>>  >espically 100Mbt full duplex ones.
>>  >
>>  >Ted Mittelstaedt
>>  >tedm@toybox.placo.com
>>  >Author of:                           The FreeBSD Corporate Networker's
>>  >Guide
>>  >Book website:
>>  >http://www.freebsd-corp-net-guide.com
>>  >
>>  >
>>  >>-----Original Message-----
>>  >>From: owner-freebsd-questions@FreeBSD.ORG
>>  >>[mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Noor Dawod
>>  >>Sent: Sunday, November 11, 2001 4:40 AM
>>  >>To: freebsd-questions@FreeBSD.ORG
>>  >>Subject: Max number of NIC's and aliases
>>  >>
>>  >>
>>  >>Hi,
>>  >>
>>  >>I have two questions to the list:
>>  >>
>>  >>1) is there a known number of NIC's that FreeBSD cannot handle anymore?
>>  >>2) is there a known number of aliases on one NIC that FreeBSD cannot
>>  >>handle anymore?
>>  >>
>>  >>Thanks in advance.
>>  >>
>>  >>Noor
>  > >>

-- 
-----------------------------------------------------------------------
Albert Everett - Web International, Inc.
<freebsd@webintl.com>

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-questions" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?a05100300b816e6af70b0>