From: tincanteksup <tincanteksup@...277...>
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 <9ea3b5ec-4bad-f9bf-29a6-533ecb237027@...277...>
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Date: Tue, 5 Jun 2018 15:09:53 +0100
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Subject: Re: [Openvpn-devel] [PATCH 0/5] Allow IPv6-only tunnels
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Sorry, that should be:
server Ubuntu 18.04
client arch linux
but the resulting vpn is ipv6 only and works well.


On 05/06/18 13:05, tincanteksup wrote:
> Hi,
> 
> I have applied these 5 patches to master on ubuntu 18.04LTS
> The resulting binary gave server+client ipv6 *only* tunnel
> over ipv4 network.  100% success
> 
> Using only: --server-ipv6 12fc:1918::10:186:0:0/112
> 
> I am sure buildbot runs more extensive tests than my single test
> but I would be happy to ACK this if i could work out how to.
> 
> Thanks
> 
> 
> On 05/06/18 10:04, Antonio Quartulli wrote:
>> This patchset allows clients and servers to work with a
>> tunnel configured with IPv6 only.
>>
>> Patches 2 and 3 are mere cosmetic changes and could be merged
>> regardless of the rest (note that 3 depends on 2).
>>
>> With this change a server can be configured by using only the
>> '--server-ipv6' directive.
>> This will result in clients receiving only 'ifconfig-ipv6'
>> setting in their push-reply (and no IPv4 at all).
>>
>> Given that different components required changes in order
>> to achieve this goal, the patchset has been organized as follows:
>> - patch 1 alters the tun logic (client & server side)
>> - patch 4 alters the ifconfig-pool logic (server side)
>> - patch 5 alters the server config logic (server side)
>>
>>
>> Although I have tested the patchset with different configurations
>> and with our buildbots, such change would definitely benefit
>> from a broader testing campaign (even before being merged).
>>
>>
>> Cheers,
>>
>> Trac: #208
>>
>> Antonio Quartulli (5):
>>    tun: ensure interface can be configured with IPv6 only
>>    pool: restyle ipv4/ipv6 members to improve readability
>>    pool: convert pool 'type' to enum
>>    pool: allow to configure an IPv6-only ifconfig-pool
>>    make server capable of starting with an IPv6-only tunnel
>>
>>   src/openvpn/helper.c |   8 +-
>>   src/openvpn/multi.c  |  10 +-
>>   src/openvpn/pool.c   | 179 ++++++++++++++--------
>>   src/openvpn/pool.h   |  31 ++--
>>   src/openvpn/tun.c    | 357 +++++++++++++++++++------------------------
>>   5 files changed, 308 insertions(+), 277 deletions(-)
>>