Virtual PrivateNetworks(VPN) NEMO
IX20 User Guide
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a. On the menu, click System. Under Configuration, click Device Configuration.
The Configuration window is displayed.
3. Click VPN >NEMO.
The NEMOtunnel is enabled by default. To disable, toggle off Enable.
4. For Home IP address, type the IPv4 addressof the NEMOvirtual network interface.
5. For Zone, select Internal.
The Internal firewall zone configures the IX20 device to trust traffic going to the tunnel and
allowsit through the network.
6. For Home agent server IP address, typethe IPv4 address of the NEMOhome agent. Thisis
provided by your cellular carrier.
7. For Key, type the key used to authenticate to the home agent. Thisis provided by your cellular
carrier.
8. For Home agent SPI, typethe 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 indicatesa different value.
9. For Home agent registration lifetime, in seconds, type the number of secondsnumber of
secondsuntil 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 IX20 device is
1500. The MTU size of the NEMOtunnel will be smaller, to take into account the required
headers.
11. Click to expand Care of addressto 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.
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If Default route is selected, the network interface that is used will be the same as
the default route.
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If Interface is selected, specify the local network interface.
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If IP addressis selected, type the IPaddress.
The default is Default route.
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