Sorry. Let me correct this:
Implement an access-list to block only the odd numbers (4th octet) of
123.12.10.x
Thanks,
Billy
""Billy Monroe"" <[EMAIL PROTECTED]> wrote in message
8t52r7$2g9$[EMAIL PROTECTED]">news:8t52r7$2g9$[EMAIL PROTECTED]...
> Do you know any shortcut to solve this kind of problem:
>
> Implement an access list to block the odd numbers of 255.248.0.0
>
>
> Thanks,
>
> Billy
> ""Donald B Johnson Jr"" <[EMAIL PROTECTED]> wrote in message
> 018a01c03e11$a659e810$[EMAIL PROTECTED]">news:018a01c03e11$a659e810$[EMAIL PROTECTED]...
> > thanks j
> > never thought of it that way
> > used to do it the long way
> > Duck
> > ----- Original Message -----
> > From: J Rowley <[EMAIL PROTECTED]>
> > To: Keith Townsend <[EMAIL PROTECTED]>
> > Cc: <[EMAIL PROTECTED]>
> > Sent: Tuesday, October 24, 2000 10:44 AM
> > Subject: Re: Inverse Mask
> >
> >
> > >
> > > It represents the netmask (255.248.0.0) for the network. The easiest
way
> > > to get from an inverse mask to a regular netmask is like this:
> > >
> > > 255.255.255.255 fill 'er up
> > > - 000.007.255.255 subtract the inverse mask
> > > ---------------
> > > 255.248.000.000 real netmask
> > >
> > > So, if you have a 0.7.255.255 inverse mask, it equates to 255.248.0.0.
> > > Likewise, if you had 0.0.15.255, the mask would be 255.255.240.0.
> > >
> > > You can also take the normal mask and get the inverse mask by doing
the
> > > opposite.
> > >
> > > 255.255.255.255
> > > - 255.248.000.000
> > > ---------------
> > > 000.007.255.255
> > >
> > > -j
> > >
> > >
> > > On Tue, 24 Oct 2000, Keith Townsend wrote:
> > >
> > > > I need help in understanding inverse masks that are used in network
&
> > access
> > > > list commands. I understabd what 0 and 255 do but I get confused
when
> > there
> > > > is any number other than these two. For example...
> > > >
> > > > network 10.0.0.0 0.7.255.255 area 0
> > > >
> > > > what does the 7 represent or specifiy for the mask.
> > > >
> > > > Thanks
> > > >
> > > > Keith
> > > >
> > > >
> > > > _________________________________
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