From: Lachlan_Kidd@xxxxxxxxxxxx
Date: Thu Aug 10 2000 - 21:12:09 GMT-3
Hi Sam,
If you have access to Doyle's book have a look at page 202. It states
that if a router receives a packet with a certain destination address, it
has no way of knowing where the subnet bits start or end (or even if there
are subnet bits). The only recourse it has it to assume the mask configured
on one of it's interfaces is used consistently throughout the internetwork.
By using it's own mask it can then work out the subnet address of where the
packet is to be sent. If the network is not directly connected, then yes,
you are right, it will use the major network. Sorry if it's not really
clear but Doyle does do a good job of explaining it.
Hope this helps.
Regards,
Lachlan
Sam Munzani
<sam@chinet.c To: Lachlan_Kidd@data3.com.au
om> cc: Dayong Gan <dgan@nuvo.com>, cc
ielab@groupstudy.com
Subject: Re: redistribute from Cla
ssless to Classful
11/08/00
09:04 AM
Question:
Does that mean you can have /28 on RIP and OSPF and still it would work? I
thought RIP would work with classful boundries only.
Sam
On Fri, 11 Aug 2000 Lachlan_Kidd@data3.com.au wrote:
>
> To get this route to appear, you need to have a consistent mask
throughout
> the network (i.e. /22) on your R2-R3 interfaces.
> Regards,
> Lachlan
>
>
>
>
>
> Dayong Gan
> <dgan@nuvo.co To:
"'ccielab@groupstudy.com'" <ccielab@groupstudy.com>
> m> cc:
> Sent by: Subject: redistribute from
Classless to Classful
> nobody@groups
> tudy.com
>
>
> 11/08/00
> 12:23 AM
> Please
> respond to
> Dayong Gan
>
>
>
>
>
> Hi, All.
>
> I have a problem here.
>
> R1---------------------R2--------------------R3
> OSPF RIP
>
>
> R1 has a route 172.16.1.0/22. R2-R3 uses 172.16.10.0/24. How can I make
the
> R3 get the route 172.16.1.0. It's better not to use static route.
>
>
> Best regards,
>
>
> Dayong Gan
> Network Engineer
> Nuvo Network Management Inc.
> 260-2650 Queensview Drive, Ottawa. Canada K2B 8H6
> Tel:(613)721-6886 ext. 149
> Fax:(613)721-1399
> Email: dgan@nuvo.com
> http://www.nuvo.com
>
>
>
>
>
>
>
>
>
>
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