>10.10.32.0 is network address if the 10.0.0.0 network is masked with
> 255.0.0.0
Of course, you meant mask 255.255.255.0 :)
Which is a common mask, even with network 10.0.0.0 .
To KISS it, I would guess that the mask being used is 255.255.0.0 ,
also a common mask for 10.0.0.0 .
One of the router's interfaces is probably
ip address 10.10.x.y 255.255.0.0
> ip route 10.0.0.0 255.0.0.0 10.10.32.0
simply says that for all unknown addresses within 10.0.0.0/8 to send
them to the router at 10.10.32.0, which he can get to because this is
on his (probable) 10.10.x.y link.
Note that this will "work" for all addresses within all, even unknown,
subnets of 10.0.0.0/8, even with
no ip classless
set.
However, neither
no ip classless
ip route 8.0.0.0 128.0.0.0 10.10.32.0
nor
no ip classless
ip route 0.0.0.0 0.0.0.0 10.10.32.0 !(the "classic" default route)
would work -- in the sense that any unknown subnet (that is, there are
no specific routes that are known to that subnet) address destinations
within 10.0.0.0/8 would *not* be sent to 10.10.32.0 .
This is because
ip classless
says do not look at *any* **supernet** routes of the classful network
aggregate -- any form of route *within* the classful network *will* be
used in the normal "longest-match" way.
Unless, of course, as we learned from John, when you're running OSPF,
wherein IOS converts to "ip classless" anyway :)
(Good, God!
I know way too much about "no ip classless" == "ip clueless"
(or at least I think I do :)
Remember my motto: "Often wrong, but never in doubt."
)
)
-------------------------------------------------
Tks |
BV |
Sr. Technical Consultant, SBM, A Gates/Arrow Co.
Vox 770-623-3430 11455 Lakefield Dr.
Fax 770-623-3429 Duluth, GA 30097-1511
=================================================
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
EA Louie
Sent: Monday, April 09, 2001 3:22 AM
To: John Brandis; [EMAIL PROTECTED]
Subject: Re: IP Classless
no ip classless means route IP over classful boundaries - you'll have to
do
your homework to learn the Class A, Class B, and Class C network
prefixes
though, mate ;-) However, 10.0.0.0 is a private (RFC 1918),
non-Internet-routeable Class A network
the route statement means that the route to network 10.0.0.0 is through
IP
address 10.10.32.0 (which is kind of weird, because 10.10.32.0 is
network
address if the 10.0.0.0 network is masked with 255.0.0.0, but with some
other subnet masks it would be a network rather than host address) This
is
a classful static route, which is consistent with the no ip classless
command.
-e-
----- Original Message -----
From: "John Brandis"
To:
Sent: Sunday, April 08, 2001 8:07 PM
Subject: IP Classless
> no ip classless
> ip route 10.0.0.0 255.0.0.0 10.10.32.0
>
> Whats this mean
>
> Thanks
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=616&t=616
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