From: Asim Khan (asimmegawatt@xxxxxxxxx)
Date: Tue Aug 06 2002 - 09:49:49 GMT-3
Given your configuration, both routers will ping each
other despite different netwrok masks. The reason is
after ANDing the addresses with the netmasks, they are
on the same subnet i.e 200.20.1.128
However if both addresses fall in different subnets
then they can't ping each other.
Regards.
Asim Khan
--- Sam Dagoski <DAGOMEISTER@prodigy.net> wrote:
> How come this does not work:
>
> Router 1:
> inter s0
> ip address 200.20.1.129 255.255.255.240
> encap ppp
>
> Router 2:
> inter s0
> ip address 200.20.1.130 255.255.255.224
> encap ppp
>
> The masks are different. If the masks are different
>
> on a serial connection, the two sides will not be
> able to ping each other -- even thought the line is
> up and line protocol is up.
>
> Any ideas?
>
>
---------------------------------------------------------
> Sam Dagoski
> Priciple Engineer
>
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