Will IPv6 cause drastic changes for 2010? - Amsterdam, 5th of January. It is predicted that by 2012, or sooner, we will not have any IPv4 addresses available anymore. Due to this IP address exhaustion, the Internet Protocol version 4 (IPv4) will be slowly replaced by the next generation, version 6 (IPv6). Since anti-spam measures highly depend on IP reputation checks, the question arises how IPv6 will affect your email inbox.
Amsterdam, 5th of January. It is predicted that by 2012, or sooner, we will not have any IPv4 addresses available anymore. Due to this IP address exhaustion, the Internet Protocol version 4 (IPv4) will be slowly replaced by the next generation, version 6 (IPv6). Since anti-spam measures highly depend on IP reputation checks, the question arises how IPv6 will affect your email inbox.
The
difference between IPv4 and IPv6 is very small. IPv6 is simply a
different format of characters which results in so many different
possibilities for the composition of IP addresses, that it should
take centuries before we run out again. “Many anti spam systems
focus on the reputation of the sender by evaluating the historical
traffic from an IP address. With IPv6 however, there are so many
different IP addresses that filtering at this level will not be
possible anymore. The blacklists, as we know them right now, will
disappear, and whitelists will become a lot more popular”,
according to Dreas van Donselaar from the Dutch email-security
company SpamExperts.
SpamExperts is cooperating with
several Dutch ISPs to establish an obligatory 'IPv6 mail server
registration whitelist'. Mr. van Donselaar also indicated that:
“Besides whitelisting, it is very important to have accurate email
content filtering to avoid dependency on IP reputation. We have
developed a special SpamFeed product that will help other anti-spam
companies to improve their content scanning technologies”. Although
IPv6 may still seem far away, it is approaching quickly and will have
serious consequences for everyone that is not ready for it.
What
is IPv6 exactly? Instead of the IPv4 composition of an IP address
constructed out of 4 sets of numbers, which allows us to create 4
billion different combinations,
8 sets of characters are used for IPv6 instead. This is
offering virtually an unlimited amount of different combinations.
However, not everybody is that enthusiastic about IPv6. Partly
because of the economical crisis, companies seem to postpone the
implementation of IPv6 since they are afraid of high implementation
costs.
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