Chapter 6 Wireless and Mobile Networks - Network and Systems Lab
Chapter 6 Wireless and Mobile Networks - Network and Systems Lab Chapter 6 Wireless and Mobile Networks - Network and Systems Lab
Indirect Routing: comments Mobile uses two addresses: permanent address: used by correspondent (hence mobile location is transparent to correspondent) care-of-address: used by home agent to forward datagrams to mobile foreign agent functions may be done by mobile itself triangle routing: correspondent-home-networkmobile inefficient when correspondent, mobile are in same network 6: Wireless and Mobile Networks 6-50
Indirect Routing: moving between networks suppose mobile user moves to another network registers with new foreign agent new foreign agent registers with home agent home agent update care-of-address for mobile packets continue to be forwarded to mobile (but with new care-of-address) mobility, changing foreign networks transparent: on going connections can be maintained! 6: Wireless and Mobile Networks 6-51
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Indirect Routing: moving between networks<br />
suppose mobile user moves to another<br />
network<br />
registers with new foreign agent<br />
new foreign agent registers with home agent<br />
home agent update care-of-address for mobile<br />
packets continue to be forwarded to mobile (but<br />
with new care-of-address)<br />
mobility, changing foreign networks<br />
transparent: on going connections can be<br />
maintained!<br />
6: <strong>Wireless</strong> <strong>and</strong> <strong>Mobile</strong> <strong><strong>Network</strong>s</strong> 6-51
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