Igor, That is one way to look at it and probably how they came up with
0.0.3.255, In reality the wildcard mask does specify a range in that OSPF
will start on any IP address from 206.202.0.0 - 206.202.3.255. From what
I've seen, the recommended wildcard mask for OSPF network statements is
0.0.0.0 since that ensures that OSPF will only start on that interface and
avoid problems
Joe
""Igor Glavanic"" <[EMAIL PROTECTED]> wrote in message
95nppv$no5$[EMAIL PROTECTED]">news:95nppv$no5$[EMAIL PROTECTED]...
> It is not the range -
> that is reversed subnet mask
> Example masks:
> try with 255.128.0.0 mask will become 0.127.255.255
> or 255.255.255.252 will become 0.0.0.3
>
> So in your case the original mask of 255.255.252.0 thas changed to reverse
> of 0.0.3.255
>
> Cheers
>
> Igor Glavanic
>
>
> ""Joe Arthur"" <[EMAIL PROTECTED]> wrote in message
> 95nmia$7s6$[EMAIL PROTECTED]">news:95nmia$7s6$[EMAIL PROTECTED]...
> > Fred, The wildcard mask specifies the range of addresses (interfaces)
> that
> > OSPF will start on. So, it specifies the range of 206.202.0.0 -
> > 206.202.3.255 as the ip addresses that OSPF will be started and the
> > interfaces will be assigned to Area 0. It does not do anything w.r.t
> > summarization.
> >
> > Joe
> >
> > "FREDL L AZARES" <[EMAIL PROTECTED]> wrote in message
> > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > > RouterA---------OSPF Area 0-----------RouterB---------------OSPF
Area
> > > 0-------------RouterC
> > > 206.202.0.1/24 206.202.0.2/24 206.202.1.1/24
> > > 206.202.1.2/24
> > >
> > > Scenario: You have RIP routing domain and an OSPF Area 0 with
> > > redistribution. To reduce the number of RIP routes, you have to
> configure
> > > a summary-address in OSPF to only advertise one route to RIP networks.
> > >
> > > Configuration for RouterA:
> > >
> > > Router-A(config)#router ospf 1
> > > Router-A(config-router)#network 206.202.0.0 0.0.3.255 area 0
> > >
> > > I don't understand how they came up with wildcard mask 0.0.3.255. Can
> > > someone elaborate on this.
> > > Thanks in advance.
> > >
> > > Fred
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