When looking up a route in the table, the router prefers an entry (route)
with a longer prefix, so if there is a network that falls within the summary
range on another interface, you must use either a static route with a longer
prefix (more than /19), or learn about that route from another protocol,
provided the protocol has a better administrative weight than the weight you
are using.
What is this summary for? Is for an advertisement/redistribution into OSPF
or EIGRP? If it is, then remember the default weights assigned to routess
learned from the various protocols... A redistributed static route into
EIGRP will, by default be an EIGRP External, and have a weight of 170...
Hope this helps.
Oh... your summary address is correct... :)
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
ROUTHIER, YVES
Sent: Friday, October 27, 2000 9:01 AM
To: Peter Slow
Cc: [EMAIL PROTECTED]
Subject: Re: supernetting question
Peter,
Maybe you will need to explane me this one
if you do a summarisation with this mask you will include some network
who wasn't there in the question
what happen if those networks are on a different interface ????????
I still keep my word to say , you need consecutive networks
Yves Routhier
Peter Slow wrote:
>
> no not really.
> what you will want to do is configure null interfaces on those routers
tho...( i think)
> 00001010 -- 10
> 00010000 -- 16
> 00000000 -- 0
> this is the third octet, and all the bits are the same up to 19.
> so yes, your aggregation is correct. (i think)
>
> - Peter (i think, therefore i am not always sure...)
>
> >first , to be able to do supersubneting you need to have consecutive
> >network
> >
> >
> >
> >"A.Strobel" wrote:
> >>
> >> What is the correct supernet for the followings:
> >>
> >> 172.29.10.0 255.255.255.128
> >> 172.29.16.64 255.255.255.192
> >> 172.29.0.0 255.255.255.224
> >>
> >> is my calculation of 172.29.0.0/19 correct?
> >>
> >> Thanks,
> >>
> >> A. Strobel
> >>
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=====================================================RICIB=========
Yves Routhier
Connexim, Gestion de Reseaux
Telephone : 514-828-6141
Ligne Support : 888-828-6289 ||||||||
Telecopieur : 514-636-7467 | ~ ~ |
Courriel : [EMAIL PROTECTED] | O O |
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