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[rpd] IPv6 Native Mass Market Deployment arrives in Kenya!

Anthony Somerset Anthony.Somerset at
Mon Aug 15 18:50:26 UTC 2016

Hi All,

Andrew has authorised me  to go into some more detail on the setup from a high level perspective

Our BRAS runs DHCPv6

We advertise managed and other config flags to the CPE to get its IP’s via DHCPv6 and we have a static /48 delegation to customers - This is because:

1) /48’s keeps things simpler and in line with our wider network routing practices for v6
2) Static because we work around potential issues of end devices getting different delegations after reconnect which could cause v6 to be intermittent or non operational for up to 30 minutes after a CPE reconnects depending on the CPE neighbour discovery configurations

On the CPE side:

1) They receive the managed and other config flags via RA then go and get DHCPv6 from BRAS
2) They get a /128 from a common /64 pool for the CPE wan point to point
3) They receive the delegated prefix for the LAN side also
4) CPE automatically assigns (generally the first one) a /64 from the prefix to the LAN side for SLAAC also advertising our V6 DNS services
5) Just in case devices don’t support getting DNS via RA (ie windows) we set the other configuration flag to advise clients to get also DNS via DHCPv6 which we also configure on the CPE to provide our V6 DNS servers

The CPE config was pre-deployed and basically inactive until we activated the BRAS side IPv6 for the wider network

Anthony Somerset
Group Products Engineer

On 15 Aug,2016, at 12:55, Lu Heng < at< at>> wrote:



Curious to know how its being done though, if home router does not
support ipv6, how IPv6 being used by end device?

On Mon, Aug 15, 2016 at 3:39 AM, Kyle Spencer <kyle at<mailto:kyle at>> wrote:

On Aug 14, 2016 15:36, <sm+afrinic at<mailto:sm+afrinic at>> wrote:

Hi Andrew,
At 02:45 12-08-2016, Andrew Alston wrote:

I thought I'd just share this with all of you because I view it as a
fairly major step in the right direction for the continent.

Yesterday, Liquid Telecom turned on IPv6 to all its Kenyan home users
using GPON and our FTTH / FTTB products.  This was done in such a way that
the customers didn't need to configure anything themselves to enable it, it
was just there J

I would like to congratulate you and Liquid Telecom as it may be the first
ISP in Africa turning on IPv6 for home users.

S. Moonesamy

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Kind regards.

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