Ascend Archive
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Re: (ASCEND) Low bit/high bit subnets
Phillip Vandry writes:
> > I was wondering if the Ascend products will properly
> > route 'illegal' subnets such as the 0-bit and the high-bit
> > subnets. For example, if I have /27 network, can I use:
> >
> > 208.133.27.0/27 (for IP's 208.133.27.1 - 208.133.27.31)
> >
> > or
> >
> > 208.133.27.224/27 (for IP's 208.133.27.225 - 208.133.27.254)?
>
> I've been told by Ascend and by Cisco to be afraid to do that with their
> respective products, it violates specs all over the place, etc..
You are right, it's a load of crap:
sl-wmw-1#show ip route 208.5.41.248
Routing entry for 208.5.41.248/29
Known via "static", distance 1, metric 0
Redistributing via rip
Advertised by rip
Routing Descriptor Blocks:
* 208.5.43.2
Route metric is 0, traffic share count is 1
where 208.5.43.2 is a max 4048 running 5.0Ap16 and the cisco is a 4500
running 11.2.
I think this qualifies as a high-bit subnet, don't you? Oh, in case
you are wondering, I'm typing from the box on that route. (.250)
Hell, even Windoze 95 can handle it. ;-)
I don't see a zero subnet currently on this router.... cisco requires you use
"ip subnet-zero" to use it (but that might be without clasless, not sure)
--Dan
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