Field Description
The function is disabled by default.
MobIKE
Only for peers with IKEv2.
MobIKE With changing public IP addresses, enables only these
addresses to be updated in the SAs, without having to renegoti-
ate the SAs themselves.
The function is enabled by default.
Note that MobIKE requires a current IPSec client, e.g. an up-
to-date Windows 7 or Windows 8 client, or the most recent ver-
sion of the Teldat IPSec client.
Proxy ARP Select whether your device is to respond to ARP requests from
its own LAN on behalf of the specific connection partner.
Possible values:
• " (default value): Deactivates Proxy ARP for this
IPSec peer.
• 0)  .: Your device only responds to an ARP re-
quest if the status of the connection to the IPSec peer is
0) (active) or . (dormant). In the case of .,
your device only responds to the ARP request; the connection
is not set up until someone actually wants to use the route.
• 0) ,&: Your device responds to an ARP request only if the
status of the connection to the IPSec peer is 0) (active), i.e. a
connection already exists to the IPSec peer.
IPSec Callback
Teldat devices support the DynDNS service to enable hosts without fixed IP addresses to
obtain a secure connection over the Internet. This service enables a peer to be identified
using a host name that can be resolved by DNS. You do not need to configure the IP ad-
dress of the peer.
The DynDNS service does not signal whether a peer is actually online and cannot cause a
peer to set up an Internet connection to enable an IPSec tunnel over the Internet. This pos-
sibility is created with IPSec callback: Using a direct ISDN call to a peer, you can signal
that you are online and waiting for the peer to set up an IPSec tunnel over the Internet. If
the called peer currently has no connection to the Internet, the ISDN call causes a connec-
tion to be set up. This ISDN call costs nothing (depending on country), as it does not have
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