[c-nsp] IP unnumbered question. Are isp's using this alot?

[robbie]

Or use RFC1918 /31s for the ultimate in conservation.

On a serious note, every provider that I've seen recently (BS, Sprint, 
AT&T, Broadwing, Qwest in the past 3 years or so) provides at least a 
/30 for link OAM and the like, and most of them assign globally routable 
IPs as well.

Cheers,
Robbie


Rodney Dunn wrote:
> And with /31 support you can even be more conservative.
> 
> On Wed, Jun 22, 2005 at 05:20:55PM -0700, Scott Granados wrote:
> 
>>I have not run in to this at all.
>>
>>Generally, all my circuits are and always have been /30's between them, more
>>times than not actual routed ips.
>>
>>
>>
>>-----Original Message-----
>>From: cisco-nsp-bounces at puck.nether.net
>>[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Joseph Jackson
>>Sent: Wednesday, June 22, 2005 5:14 PM
>>To: cisco-nsp at puck.nether.net
>>Subject: [c-nsp] IP unnumbered question. Are isp's using this alot?
>>
>>Hi all,
>>
>> 
>>
>> 
>>
>>            My company just got a new t1 line from a different isp than our
>>main one for backup incase the primary fails.  When they gave me the ip
>>address info I noticed that there wasn't anything listed for the wan side of
>>the router.  When I called to ask about this they informed me that on their
>>edge devices they do not give ip addresses and I must use the ip unnumbered
>>command.  What I am getting at here is is this common for ISP's to do now?
>>Is this a trend that has been gaining ground?  When I spoke to my boss about
>>this he wasn't too happy.  The other circuits that we have for internet
>>access all came with an ip to use for the wan interface. Even a circuit from
>>the same company that we use for a whole other network has a wan ip address.
>>Anyone else see this a lot?
>>
>> 
>>
>> 
>>
>> 
>>
>> 
>>
>> 
>>
>>Thanks
>>
>> 
>>
>>Joseph Jackson
>>
>> 
>>
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>>
>>
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-- 
robbie at packetized dot org <short sig army - one line sigs since 1993>