Hello,
Just a remark,
I use TAP with IPv6
I use DHCPv6 and radvd, + DNS update
I always receive same IPv6 addresses for my clients owing to DUID (it is
the same for any kind of interface)
Best regards,
Pavel
-------- Original Message --------
*Subject: *Re: [Openvpn-users] Hostnames and OpenVPN
*From: *Jan Just Keijser <janj...@nikhef.nl>
*To: *Phoenix <phoe...@startledphoenix.com>,
openvpn-users@lists.sourceforge.net
*Date: *29.12.2014 15:28
Hi,
On 27/12/14 05:04, Phoenix wrote:
Hi, I am looking to setup OpenVPN with the ability to access hosts on
the OpenVPN network using their certificate name (For example,
Emily.srv.startledphoenix.net). I am using a tap-based network, so
learn-address spits out a mac address instead of a ip address. Each
client connected to OpenVPN needs to have a static address.
What I have tried so far:
Dnsmasq (bridged tap):
- Hostname resolution works
- Due to the fact that the tap interface mac on the clients keeps on
changing, it keeps on allocating new addresses to clients. Quite
annoying when you are attempting to bind nginx to that internal tap
interface. It also causes SSH to go wild and ask to accept the ssh
key each time I connect and it has a new ip address
Custom ARP Script (bridged tap, addresses allocated by openvpn)
(Script: http://pastebin.com/rM6tkKgE):
- Hostname resolution works
- Script is finicky, it seems that finding the IP Address using the
MAC address and ARP is not such a good idea.
If anyone has any idea how I can get this to work, or solutions to
either of the above, that would be awesome.
as Gert already pointed out, avoid tap+bridging if you can. Do you
really need tap ?
I don't understand your remark about nginx - is that happening on the
client?
As for your learn-address or client-connect script - in both cases the
script knows the IP address that OpenVPN has allocated for it. It's
not on the command line, but the env var $ifconfig_pool_remote_ip
contains the client IP; a simple client-connect or learn-address
script that dumps the environment will tell you all available env vars:
[...]
ifconfig_pool_remote_ip=192.168.200.2
ifconfig_local=192.168.200.1
ifconfig_netmask=255.255.255.0
X509_0_CN=client3
[...]
If you use an external DHCP server then you should query that server
for the assigned IPs.
Finally, it *is* possible to use static MAC addresses for your TAP
adapter (--lladdr HW) , but this needs to be done on each client.
HTH,
JJK
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