patrice truong wrote:
Either you or I has a serious misunderstanding here.
> I setup Ip masquerade on a router (Linux RH 5.2 on a i486) with two
> Ethernet interfaces. One interface routes to the ISP subnet/gateway,
> and the other interface supports a class private network address
> (i.e. 199.183.25.x).
>
> My http server has a ip number of this private network (i.e.
> 199.183.25.100).
Are you saying you're using 199.183.25.0 as your internal network?
And you think that's a good number to use?
That isn't a private network address. It's a valid routable address
owned by Netcom:
Dig gives me:
;; QUERY SECTION:
;; 0.25.183.199.in-addr.arpa, type = ANY, class = IN
;; AUTHORITY SECTION:
25.183.199.in-addr.arpa. 1d3h46m40s IN SOA ns1.noc.netcom.net.
The allowed private address #'s are in RFC 15something. There's
a class A:
10.0.0.0 netmask 255.0.0.0
a contiguous block of class B's whose numbers I forget.
a block of class C's
192.168.x.y
where x is part of the network # and y identifies an interface
on the network.
Unless I've misunderstood and that 199.183.25.100 is your
external interface to Netcom, methinks you should change to
192.168.x.y.
--
"The real aim of current [cryptography] policy is to ensure the
continued effectiveness of US information warfare assets against
individuals, businesses and governments in Europe and elsewhere"
Ross Anderson, Cambridge University
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