Suppose the correspondent in Figure 7.23 were mobile. Sketch the additional network-layer infrastructure that would be needed to route the data-gram from the original mobile user to the (now mobile) correspondent. Show the structure of the data-gram(s) between the original mobile user and the (now mobile) correspondent. as in Figure 7.24.

Figure 7.23

Figure 7.24

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Home network: 128.119.40/24 Visited network: o Jedi 79.129.13/24 Mobile node Permanent address: O Permanent address: 128.119.40.186 128.119.40.186 JaTIolel to Care-of address: 79.129.13.2 doi si sirw ni Home agent Foreign agent Wide area uitdom network sladom suo bbs ugisvo l esmilomo TViOT Correspondent Home network: Visited network: ng 128.119.40/24 79.129.13/24 Mobile node Permanent address: 128.119.40.186 Permanent address: otw 128.119.40.186 Care-of address: 79.129.13.2 Foreign agent Home ork Wide area network agent ruoted flow ger ri registenae all froa Correspondent