Great Circle Associates Firewalls
(October 1997)
 

Indexed By Date: [Previous] [Next] Indexed By Thread: [Previous] [Next]

Subject: Re: IP addresses
From: Eric Vyncke <evyncke @ cisco . com>
Date: Tue, 21 Oct 1997 16:06:49 +0000
To: "Hisham Abdullatif Al-Rumaihi" <rumaihi @ internic . uob . bh>, firewalls @ GreatCircle . COM
In-reply-to: <344C650B . 54408B84 @ admin . uob . bh>

As your proxy server can obviously perform NAT (Network Address
Translation), you only need one official IP address for
the proxy server.

All your internal PCs can use 'illegal' IP addresses (or even
better the 'private' addresses like 192.168.*.*) internaly.
As people going to the Internet will use the proxy server,
the source IP address of the IP datagram sent to the Internet
will always be the one of the proxy server.

<COMMERCIAL>
BTW, even if you do not use the MS Proxy, you can still use
the router used to connect to the Internet to perform NAT...
</COMMERCIAL>

Last paragraph probably bears my employeer flagrance ;-)

Best regards

-eric

At 11:17 21/10/97 +0300, Hisham Abdullatif Al-Rumaihi wrote:
>Hi,
>
>We have Class C network, and we have 400 internet users, 150 of them not
>
>using the internet, but they are using TCP/IP applications(Oracle).
>
>We have DHCP server running on NT 4.0, and Proxy server running on NT
>4.0 for accessing the internet through ip addresses.
>
>The problem is we are running out of IP addresses, and not all the users
>
>using the internet, is there a way to give the oracle users illegal ip
>addresses.
>
>Please can anybody help us.
>
>Thank you
>Hisham Al-Rumaihi
>
Eric Vyncke      
Technical Consultant               Cisco Systems Belgium SA/NV
Phone:  +32-2-778.4677             Fax:    +32-2-778.4300
E-mail: evyncke @
 cisco .
 com          Mobile: +32-75-312.458


Follow-Ups:
References:
  • IP addresses
    From: "Hisham Abdullatif Al-Rumaihi" <rumaihi @ admin . uob . bh>
Indexed By Date Previous: Re: sex, lies, and firewall code
From: Peter da Silva <peter @ baileynm . com>
Next: Re: sex, lies, and firewall code
From: Eric Vyncke <evyncke @ cisco . com>
Indexed By Thread Previous: IP addresses
From: "Hisham Abdullatif Al-Rumaihi" <rumaihi @ admin . uob . bh>
Next: Re: IP addresses
From: Chris Brenton <cbrenton @ sover . net>

Google
 
Search Internet Search www.greatcircle.com