SmartFlex
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Item Description
Second Remote
Subnet Mask/Prefix
IPv4 subnet mask of the second network behind remote side of
the tunnel, or IPv6 prefix (single number 0 to 128). For IKE Pro-
tocol = IKEv2 only.
Remote Protocol/Port Specifies Protocol/Port of remote side of the tunnel. The general
form is protocol/port, for example 17/1701 for UDP (protocol 17)
and port 1701. It is also possible to enter only the number of
protocol, however, the above mentioned format is preferred.
Local ID Identifier (ID) of local side of the tunnel. It consists of two parts:
a hostname and a domain-name.
First Local Subnet IPv4 or IPv6 address of a local network, based on Tunnel IP
Mode above.
First Local Subnet
Mask/Prefix
IPv4 subnet mask of a local network, or IPv6 prefix (single num-
ber 0 to 128).
Second Local Subnet IPv4 or IPv6 address of the second local network, based on Tun-
nel IP Mode above. For IKE Protocol = IKEv2 only.
Second Local Subnet
Mask/Prefix
IPv4 subnet mask of the second local network, or IPv6 prefix
(single number 0 to 128). For IKE Protocol = IKEv2 only.
Local Protocol/Port Specifies Protocol/Por t of a local network. The general form is
protocol/port, for example 17/1701 for UDP (protocol 17) and
port 1701. It is also possible to enter only the number of protocol,
however, the above mentioned format is preferred.
Encapsulation Mode Specifies the IPsec mode, according to the method of encap-
sulation. You can select the tunnel mode in which the entire IP
datagram is encapsulated or the transpor t mode in which only IP
header is encapsulated.
Force NAT Traversal Enable NAT traversal enforcement (UDP encapsulation of ESP
packets). (Enabled).
IKE Protocol Specifies the version of IKE (IKEv1/IKEv2, IKEv1 or IKEv2).
IKE Mode Specifies the mode for establishing a connection (main or ag-
gressive). If you select the aggressive mode, then the router es-
tablishes the IPsec tunnel faster, but the encryption is perma-
nently set to 3DES-MD5. We recommend that you not use the
aggressive mode due to lower security!
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