bgp-and-beyond.com

by Fredy Künzler

We recently received an email saying

Please remove 174.0.0.0/8 from your bogon filter...

and indeed, as time flies by, we had an outdated BOGON filter list implemented. IANA keeps allocating /8 to RIRs and if network administrators don't pay attention, parts of the internet could silently become unreachable.

In the past few month these blocks should have become routable:

112.0.0.0/8
113.0.0.0/8
114.0.0.0/8
115.0.0.0/8
173.0.0.0/8
174.0.0.0/8
186.0.0.0/8
187.0.0.0/8

Therefore it's probably wise to check if you see any more specifics of these prefixes (on Cisco / Foundry / Quagga type "sh ip bgp 113.0.0.0/8 longer").

I know that BOGON filtering could be automated, but we never found the time to get it done properly, and, as the available IPv4 space is running out, the Bogon Route Server Project will become obsolete anytime soon.

by Fredy Künzler

Quoting Mike Leber of he.net:

Since nobody mentioned it yet, there are now less than 1000 days projected until IPv4 exhaustion:

http://www.potaroo.net/tools/ipv4/

Do you have an IPv6 plan?

How long do you think it will be until Sarbanes Oxley and SAS 70 auditors start requiring disclosure of IPv4 exhaustion as a business continuity risk, as well as the presence or lack thereof of an IPv6 plan?

When do you plan on telling your customers? (afterwards?)

Ahhh, you don't have any customers that have to plan to buy equipment 2 years in advance. Ok, I understand.

Mike.
ps. 1000 days assumes no rush, speculation, or hoarding. Do people do that?

pps. Of course these are provocative comments for amusement.

ppps. Or not if you don't have any kind of IPv6 plan. Sorry, sorry...

Mike, you're right. Please tell us again in 500 days ...at least I included the IPv4 exhaustion counter here ...

PS: we can deliver IPv6 feed, too.