Sunrise Internet Box User Manual page 79

3.4.10.6 Troubleshooting examples for VPN
Question
Is it possible to establish Net-to-Net VPN if the
subnet masks of the local and remote network
are not the same?
How many VPN session can be handled by the
Sunrise Internet Box?
How many users can be configured for
Roadwarrior?
Is there a limitation of active sessions per user or
is this equal to the overall maximum amount of
sessions?
Is it possible to use Net-to-Net and Roadwarrior
VPN at the same time?
The RoadWarrior connection is established, but I
cannot access local/remote devices (e.g. NAS,
Mediaservers, Router GUI).
Sunrise Internet Box User Manual
Answer
Different masks should work, but subnet1+mask
should not overlap subnet2+mask and vice versa.
The number is limited by available CPU resources
and configured IP pool size (currently IPs
192.168.5.2 - 192.168.5.10) => 9
Clients/Sessions
At least the same value as maximum amount of
sessions.
(Successfully tested with 10 users)
Limited by maximum amount of sessions.
Note: Inactive sessions from not disconnected
clients are also taken into account. Therefore,
please always manually disconnect VPN clients
from the Sunrise Internet Box.
Simultaneous activated Net-to-Net and
Roadwarrior VPN is not recommended, because it
can cause routing problems
For RoadWarrior VPN it is also important that the
local and the remote subnet do not overlap.
If your RoadWarrior device (e.g. Laptop, Mobile
Phone) is connected to a Router that uses the
same subnet as the Sunrise Internet Box you
want to establish a VPN connection to, you can
only access either the local or the remote IP
addresses that are used in both networks.
Page 79