Digi TX54, User Manual

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Virtual Private Networks (VPN) NEMO
TX54 User Guide 536
7. For Key , type the key used to authenticate to the home agent. This is provided by your cellular
carrier.
8. For Home agent SPI , type the Security Parameter Index (SPI) value, which is used in the
authentication extension when registering. This should be normally left at the default setting
of
256 unless your service provider indicates a different value.
9. For Home agent registration lifetime, in seconds , type the number of seconds number of
seconds until the authorization key expires. This is provided by your cellular carrier.
10. For MTU discovery , leave enabled to determine the maximum transmission unit (MTU) size.
If disabled, for MTU , type the MTU size. The default MTU size for LANs on the TX54 device is
1500. The MTU size of the NEMO tunnel will be smaller, to take into account the required
headers.
11. Click to expand Care of address to configure the local WAN interface of the internet facing
network.
a. For Type , select the method to determine the local network interface that is used to
communicate with the peer.
n
If Default route is selected, the network interface that is used will be the same as
the default route.
n
If Interface is selected, specify the local network interface.
n
If IP address is selected, type the IP address.
The default is Default route .
12. Click to expand GRE tunnel local endpoint .
a. For Type , select the local endpoint of the GRE endpoint negotiated by NEMO.
n
If Default route is selected, the network interface that is used will be the same as
the default route.
n
If Interface is selected, specify the local network interface.
The default is Default route .
13. Click to expand Local networks .
a. For Add Interface , click

to add a local network to use as a virtual NEMO network
interface.
b. For Interface , select the local interface to use as a virtual NEMO network interface.
Generally, this will be the a Local Area Network (LAN).
c. (Optional) Repeat for additional interfaces.
14. Click Apply to save the configuration and apply the change.

Command line