Off Topic - Networking

Yahoo Archive
1
None at all but I did not start measuring web performance until we got the
T1 line (from a 56K dial service) and implemented the firewall at the same
time. The SonicWall Pro we have allows the dedicated processor to handle
NAT rather than a software implementation on the server so my gut feeling is
performance is not an issue. It has all worked very transparently. I
implemented a SonicWall SOHO2 at home on cable modem and saw no performance
hit there. I did see a total stop to warnings from Norton Internet Security
(software firewall) at home because the SOHO2 box was catching everything
and I also perceived a slight improvement on my main home PC when I
discontinued Internet Connection Sharing which is a software NAT/DHCP
solution.
-Todd C.

-----Original Message-----
From: Mike Lowe [mailto:MLowe@...]
Sent: Friday, May 04, 2001 1:57 PM
To: vantage@yahoogroups.com; vantage@yahoogroups.com
Subject: Re:RE: [Vantage] Off Topic - Networking


Todd,

Do you notice any type of performance hit using NAT?

Mike Lowe
Connor

____________________Reply Separator____________________
Subject: RE: [Vantage] Off Topic - Networking
Author: <vantage@yahoogroups.com>
Date: 5/4/2001 1:51 PM

I tried this and gave up. Now using NAT behind a firewall. Also saved a
bit of cost on assigned IP addresses by having only 5 instead of 64. Not
enough to pay for firewall but the extra security is very nice. Not using
DHCP either, just assigned each PC an IP in the non-routable 192.168....
range. We'll never run out.
-Todd C.
Harvey Vogel Mfg. Co.

-----Original Message-----
From: Jim MacMillan [mailto:jimmac@...]
Sent: Friday, May 04, 2001 12:46 PM
To: Vantage Listserv (E-mail)
Subject: [Vantage] Off Topic - Networking


Ok all you networking guru's out there, I can use a little help.

I run MS BackOffice 4.5 and tcp/ip (not DHCP) I am at my max of available IP
address's for my network. I got today an addition 32 IP's routed to our
company and cant seem to get it working right. The IP's aren't all 64 in a
row, its 2 different blocks of 32 and the subnet mask (from QWest) is the
same. It works enough to log into the network, but something isn't right.
I am unable to ping the gateway and unable to get out on the internet on
these new IP's. I can do all the networking I want within the company but
cant reach the gateway to get out onto the internet.

Any suggestions??? Thanks in advance

Jim MacMillan
Scientific Dimensions Inc
System Administrator
800-523-6180 x 207
jimmac@...



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2
Todd,

Do you notice any type of performance hit using NAT?

Mike Lowe
Connor

____________________Reply Separator____________________
Subject: RE: [Vantage] Off Topic - Networking
Author: <vantage@yahoogroups.com>
Date: 5/4/2001 1:51 PM

I tried this and gave up. Now using NAT behind a firewall. Also saved a
bit of cost on assigned IP addresses by having only 5 instead of 64. Not
enough to pay for firewall but the extra security is very nice. Not using
DHCP either, just assigned each PC an IP in the non-routable 192.168....
range. We'll never run out.
-Todd C.
Harvey Vogel Mfg. Co.

-----Original Message-----
From: Jim MacMillan [mailto:jimmac@...]
Sent: Friday, May 04, 2001 12:46 PM
To: Vantage Listserv (E-mail)
Subject: [Vantage] Off Topic - Networking


Ok all you networking guru's out there, I can use a little help.

I run MS BackOffice 4.5 and tcp/ip (not DHCP) I am at my max of available IP
address's for my network. I got today an addition 32 IP's routed to our
company and cant seem to get it working right. The IP's aren't all 64 in a
row, its 2 different blocks of 32 and the subnet mask (from QWest) is the
same. It works enough to log into the network, but something isn't right.
I am unable to ping the gateway and unable to get out on the internet on
these new IP's. I can do all the networking I want within the company but
cant reach the gateway to get out onto the internet.

Any suggestions??? Thanks in advance

Jim MacMillan
Scientific Dimensions Inc
System Administrator
800-523-6180 x 207
jimmac@...



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Reports and other 'goodies', please go to:
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Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
3
At 02:57 PM 5/4/2001 , you wrote:
>Do you notice any type of performance hit using NAT?

It has zero affect on internal LAN performance. And little or none on
Internet connectivity.

Our NATed Internet connection is through freebie-unix on an old clunker
pentium-100 PC, and I've never seen its CPU use beyond the single-digit
percents, even with the 410K bandwidth maxed out. Which sorta implies it's
fairly low overhead.

-Wayne Cox (really bored and waiting to head out to office going-away
party)