https://bugzilla.wikimedia.org/show_bug.cgi?id=56681

       Web browser: ---
            Bug ID: 56681
           Summary: Blocking user autoblocks many user with ipv6
           Product: Wikimedia
           Version: wmf-deployment
          Hardware: All
                OS: All
            Status: NEW
          Keywords: ipv6
          Severity: critical
          Priority: Unprioritized
         Component: General/Unknown
          Assignee: [email protected]
          Reporter: [email protected]
    Classification: Unclassified
   Mobile Platform: ---

Today a user on dewiki was blocked and other users getting autoblock, but that
was too much user to have the same public ip address than the blocked user.

Some of the user copy and paste the autoblocktext which was shown. The IP
addresse in that piece of text was 2620:0:862:1:a6ba:dbff:fe30:d853. According
to utrace this is a wikimedia ipv6 address. It looks like, user with ipv6 does
not reaching wikipedia with its own public ipv6, instead there are tunneling
through a wikimedia gateway to wikipedia or something other, which changes the
ip in the header.

Please fix this to avoid a mass block of many ipv6 users and to avoid false
positive in check user. Thanks.

http://www.utrace.de/whois/2620%3A0%3A862%3A1%3AA6BA%3ADBFF%3AFE30%3AD853
NetRange:       2620:0:860:: - 2620:0:863:FFFF:FFFF:FFFF:FFFF:FFFF
CIDR:           2620:0:860::/46
OriginAS:       AS14907
NetName:        WIKIMEDIA6
NetHandle:      NET6-2620-860-1
Parent:         NET6-2620-1
NetType:        Direct Assignment
Comment:        http://www.wikimediafoundation.org
RegDate:        2007-10-02
Updated:        2012-03-02
Ref:            http://whois.arin.net/rest/net/NET6-2620-860-1

OrgName:        Wikimedia Foundation Inc.
OrgId:          WIKIM
Address:        149 New Montgomery Street
Address:        3rd Floor
City:           San Francisco
StateProv:      CA
PostalCode:     94105
Country:        US
RegDate:        2006-05-30
Updated:        2012-02-15
Ref:            http://whois.arin.net/rest/org/WIKIM

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