NB3700 User Manual 3.8
If MIP is run as a home agent, you will have to set up a home address and network
mask for the home agent first. Then you will need to add the configuration for all mobile
nodes which is made up of the following settings:
Figure 5.23.: Mobile IP
Parameter Mobile IP Node Configuration
SPI The Security Parameter Index (SPI) identifying the secu-
rity context for the tunnel between the mobile node and
the home agent. This is used to distinguish mobile nodes
from each other. Therefore each mobile node needs to be
assigned a unique SPI. This is a 32-bit hexadecimal value.
Authentication type The used authentication algorithm. This can be prefix-
suffix-md5 (default for mobile IP) or hmac-md5.
Shared secret The shared secret used for authentication of the mobile
node at the home agent. This can be either a 128-bit hex-
adecimal value or a random length ASCII string.
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