HI Namaste!!! 1. Create a foreign agent advertisement messeage using 1672 as the sequece number and a life time of 4 hrs. select your own values for the bits in the code field. use at least three care of addresses of ur choice. calculate and insert the value for the lenght field. 2.  in an 802.11 network there are three station A, B, C. station C is hidden froma A, but can be electronically by B. Now assume that station A needs to send a data to Station B. since C is hidden from A, the RTS frame can not reach C. explain how station C can find out that the channel is locked by A and that it should refrain from transmitting. thanks all in advance