VPN
234 IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.0
Secr et/R emo te
Validation Criteria
Button
Depending on the Authentication Method:
Shared Secret—Specify the text-based secret that is used to authenticate the
IPsec tunnel (case sensitive). This applies to all VPN tunnels (IPsec and
L2TP/IPsec).
X.509 Certificate—Specify the remote X.509 certificate validation criteria that
must match for successful authentication (case sensitive). Note that all
validation criteria must be configured to match the X.509 certificate. An
asterisk (*) is valid as a wildcard.
See Shared Secret Field Description on page 235 for m ore information.
See Remote Validation Criteria Field Descriptions on page 236 for more
information on the X.509 certificate validation criteria.
Local Dev ice When the VPN tunnel is established, one side of the tunnel is designated as
Right and the other as Left. You are configuring the IO LAN-side of the VPN
tunnel.
Data Options: Left, Right
Default: Left
Local IP Address The IP address of the IOLAN. You can specify %defaultroute when the IP
address of the IOLAN is not always known (for exam ple, when it gets its IP
address from DHCP). When %defaultroute is used, a default gateway must
be configured in the route table (Network, Advanced, Route List tab).
Field Format: IPv4 address, IPv6 address, FQDN, %defaultroute
Local External IP
Address When NAT Traversal (NAT_T) is enabled, this is IOLAN’s external IP address
or FQDN. When the IOLAN is behind a NAT router, this will be its public IP
address.
Field Format: IPv4 address, IPv6 address, FQDN
Local Next Hop The IP address of the router/gateway that will forward data packets to the
remote VPN (if required). The router/gateway must reside on the same subnet
at the IOLAN. Leave this parameter blank if you want to use the Default
Gateway configured in the IOLAN.
Field Format: IPv4 or IPv6 address
Local Host/Network
Address The IP address of a specific host, or the network address that the IOLAN will
provide a VPN connection to.
Field Format: IPv4 or IPv6 address
Local IPv4 Subnet
Mask The subnet mask of the local IPv4 network. Keep the default value when you
are configuring a host-to-host VPN connection.
Default: 255.255.255.255
Local IPv6 Prefix
Bits The prefix bits of the local IPv6 network. Keep the default value when you are
configuring a host-to-host VPN connection.
Default: 0
Remote IP Address The IP address or FQDN of the remote VPN peer. If you want to accept a VPN
connection from any VPN peer, you can enter %any in this field.
Field Format: IPv4 address, IPv6 address, FQDN, %any
Remote External IP
Address When NAT Traversal (NAT_T) is enabled, the remote VPN’s public external IP
address or FQDN.
Field Format: IPv4 address, IPv6 address, FQDN