| 1: | Draw a basic Mobile IP topology. |
| A1: | Answer: 
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| 2: | Which command enables the Mobile IP process on a router? |
| A2: | Answer: The router mobile command enables the Mobile IP process on a router. |
| 3: | What are virtual networks and why are they used? |
| A3: | Answer: Virtual networks commonly support nodes that never physically come home. Virtual networks are expressed as a network number and mask. Similar to a loopback interface, a virtual network is always up and not susceptible to physical failures, thereby ensuring higher availability. |
| 4: | Give an example of a basic Home Agent configuration with the following features: Home Agent address 192.168.1.2, virtual network 192.168.100.0/24, and Mobile Node 192.168.100.10 residing on the virtual network. Don't forget to include the Mobile-Home security association. |
| A4: | Answer: hostname HA ! interface Ethernet0/0 ip address 192.168.1.2 255.255.255.0 ! router mobile ! ip mobile home-agent ip mobile virtual-network 192.168.100.0 255.255.255.0 ip mobile host 192.168.100.10 virtual-network 192.168.100.0 255.255.255.0 ip mobile secure host 192.168.100.10 spi 100 key hex 1234567890abcdef1234567890abcdef ! end
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| 5: | Give an example of a FA configuration with the following features: FA address 192.168.3.2 and CoA 192.168.5.1 on Ethernet 1/0. |
| A5: | Answer: hostname FA1 ! interface Ethernet0/0 ip address 192.168.3.2 255.255.255.0 ! interface Ethernet1/0 ip address 192.168.5.1 255.255.255.0 ip mobile foreign-service ! router mobile ! ip mobile foreign-agent care-of Ethernet1/0 ! end
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| 6: | Give an example of an IOS Mobile Networks configuration with Home Agent 192.168.1.2 and Home Address 169.254.255.1. |
| A6: | Answer: hostname MN ! interface Loopback0 ip address 192.168.100.10 255.255.255.255 ! interface Ethernet0/0 ip address 169.254.255.1 255.255.255.0 ip mobile router-service roam ! router mobile ! ip mobile secure home-agent 192.168.1.2 spi 100 key hex 1234567890abcdef1234567890abcdef ! end
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| 7: | A router can serve as a Home Agent and FA at the same time. True False
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| A7: | Answer: True. One Mobile Node's Home Network can often be another node's visited network. In this case, you would want a single router to run both Home Agent and FA services. |
| 8: | Configuration of security associations for IOS Mobile IP is always done from the perspective of the agent that is to use that security association. True False
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| A8: | Answer: True. For example, the ip mobile secure foreign-agent\'85 command configures an HA-FA security association on the Home Agent. If the same command were configured on the Mobile Node, it would imply an MN-FA security association. |
| 9: | List two commands that are useful for troubleshooting on the Home Agent. |
| A9: | Answer: The show ip mobile binding and show ip mobile host commands are useful for troubleshooting on the Home Agent. |
| 10: | Name a command that is useful for troubleshooting on the FA. |
| A10: | Answer: The show ip mobile visitor command is useful for troubleshooting on the Foreign Agent. |
