[sf-lug] HOW *not* to do IPv6

[Michael Paoli]

HOW *not* to do IPv6
<sigh>
http://www.ihop.com/
$ lynx -dump http://www.ihop.com/

    Please enable cookies.

Error 1009 Ray ID: 37ccbd24d5166d00 o 2017-07-11 15:19:03 UTC

Access denied

What happened?

    The owner of this website (www.ihop.com) has banned the country or
    region your IP address is in (CN) from accessing this website.

    Cloudflare Ray ID: 37ccbd24d5166d00 o Your IP: 2001:470:66:76f::2 o
    Performance & security by Cloudflare
$
Definitely *not* in CN, nor is the relevant ISP or IP or its allocation:
$ geoiplookup6 2001:470:66:76f::2
GeoIP Country V6 Edition: US, United States
$ whois 2001:470:66:76f::2
...
OrgName:        Hurricane Electric, Inc.
OrgId:          HURC
Address:        760 Mission Court
City:           Fremont
StateProv:      CA
PostalCode:     94539
Country:        US
...
$ whois NET6-2001-400-0
...
NetRange:       2001:400:: - 2001:5FF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
CIDR:           2001:400::/23
NetName:        ARIN-001
NetHandle:      NET6-2001-400-0
Parent:          ()
NetType:        Allocated to ARIN
OriginAS:
Organization:   American Registry for Internet Numbers (ARIN)
...

Ah well, they're a restaurant, not an ISP or web hosting company,
and beat the heck out'a Denny's (I remember some years back
Denny's ran some commercials poking fun at IHOP ... all those Denny's
commercials did was make me want to go to IHOP!).

Also glad SF-LUG site isn't hosted by Cloudflare, or maybe it would
have the same problem.