RE: Bi-Pass NIC Card
- From: "Wayne Berry" <wayne@xxxxxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Sat, 5 Feb 2005 16:52:58 -0800
Jim,
Stop beating around the bush and tell me how you really feel.
-Wayne
_____
From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx]
Sent: Saturday, February 05, 2005 7:49 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: Bi-Pass NIC Card
http://www.ISAserver.org
Sorry, Wayne - the first time I see a customer installing such a device in
their system, I:
1 - beat them more senseless
2 - walk off the premises
3 - post their company and IT manager names on www.1d10t.com
<http://www.1d10t.com/>
This isn't "failure redundancy" any more that plugging all your machines and
Internet into the same switch/hub is "management simplification".
Frankly, this idea has as much merit as depending on a script to automate
your ISA policy decisions based on alerts.
BTW, does anyone else find it appropriate that the 1d10t.com domain name has
been registered since 1999, but isn't being used?
-------------------------------------------------------
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
<http://isaserver.org/Jim_Harrison/> http://isaserver.org/Jim_Harrison/
<http://isatools.org/> http://isatools.org
Read the help / books / articles!
-------------------------------------------------------
_____
From: Wayne Berry [mailto:wayne@xxxxxxxxxx]
Sent: Friday, February 04, 2005 09:17
To: [ISAserver.org Discussion List]
Subject: [isalist] Bi-Pass NIC Card
http://www.ISAserver.org
ISAList:
For another project I am working on we have on hand some Bi-Pass NIC Cards.
Basically, they are a single NIC card with two network ports on the back,
however unlike other two port NICs if there is a power failure then they
have a mechanical switch that bridges the two NICs together allowing all
network traffic to pass across them bi-passing the box (like a single
wire). They also have a watch dog that can be enabled so you can bridge
them on software failure, i.e. the software tells the card to stay
non-bi-pass every 3 seconds or it automatically bi-passes, if the software
process goes down then the NIC bi-pass.
The interesting idea here is that if you used this in an ISA box you could
have your two NICs, and some sort of failure redundancy. The biggest
drawback is that if the power fails then you have no more firewall <- Big
Ouch. However, if you were only running the ISA server as a reverse or
forward proxy cache then they might be helpful. But, in proxy mode you are
probably running a one NIC scenario anyways. I don't know if this is such a
good idea - but someone else might have a way to use these type of cards.
Thoughts, Comments, Concerns.
-Wayne
The ISAPI Dev Lurking on the ISA Admin List
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