RE: Can I subnet my network like this ?

• Previous message: Steve Ames: "Re: Can I subnet my network like this ?"
• In reply to: Supote Leelasupphakorn: "Can I subnet my network like this ?"
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To: "Supote Leelasupphakorn" <pjn0211@yahoo.com>, <freebsd-questions@freebsd.org>
Date: Wed, 30 Jul 2003 09:13:59 -0700

The only real concern is if you are using cisco routers in this equation. If
so, make sure you enable ip-subnet-zero in the config.

Max

-----Original Message-----
From: owner-freebsd-isp@freebsd.org
[mailto:owner-freebsd-isp@freebsd.org]On Behalf Of Supote
Leelasupphakorn
Sent: Wednesday, July 30, 2003 5:46 AM
To: freebsd-questions@freebsd.org
Cc: freebsd-isp@freebsd.org; freebsd-net@freebsd.org
Subject: Can I subnet my network like this ?

Hi, all

   I would like to verify my knowledge
by building the network like below but not
sure whether it's impossible for subnetting
like this - say, from Gateway no2, is divided
to 172.16.0.0/16 and 172.17.0.0/16 subnet.

   I heard that it isn't recommend or
impossible (not sure again) to use FIRST or
LAST subnet in the allocated IP address pool,
is it?

  Section no.1 is existed and I own the Gateway no.2.
My plan is enable NAT on it by following the
instruction in FreeBSD handbook. Any comments are
welcome.

       |
       | if_1 = 202.xx.xx.xx
  |---------------| |
  | Gateway no.1 | | section 1
  |---------------| |
       | if_2 = 10.0.0.1 |
       | ----
       | |
       | if_1 = 10.0.0.254 |
  |---------------| if_2 = 172.16.0.1/16 | section 2
  | Gateway no.2 |---------------- |
  |---------------| |
       | if_3 = 172.17.0.1/16 |
       | |

Thanks in advance,

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• Previous message: Steve Ames: "Re: Can I subnet my network like this ?"
• In reply to: Supote Leelasupphakorn: "Can I subnet my network like this ?"
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