Computer Network Laboratory    Group 5

LAB 4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

˙Diagram of Mobile IP Over IPv4 and the Comparison Table with IPv6.

 

             The following is a diagram that briefly gives the ideas of mobile IP over IPv4. We do not touch the details of mobile IP over IPv4 here because the point in this laboratory is mobile IP over IPv6. And the differences between them are summarizes at the following table and at the end of the previous page (Mobile IP Over IPv6.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The following is the table of comparison between mobile IPv4 and IPv6.

 

Compared Items

Mobile IPv4

Mobile IPv6

Foreign Agent

YES

NO

Care-of address

FA or CCoA

CCoA only

Obtaining Care-of address

By FA or DHCPv4

IPv6 stateless and stateful mechanisms

Route Optimization

Option

Mandatory

Packet tunnel during route optimization

Require packet tunneling between MN and CN

Forward packets with no tunneling

HA involves route optimization

YES

NO

MIP messages format

ICMP and UDP packets

IP headers and ICMP packets

MIP messages

Reg. Req, Bing Update, …

Reduced and allow piggybacked in header

Smooth hand-over

Option

Mandatory

Reverse tunneling

Solve ingress filtering

No ingress filtering problem