An organization's network is shown below. Network N1 covers the head office supporting up to 512 nodes, and networks N2..4 belong to 3 main branches. Satellite sites S1 & S2 are used to serve remote locations. Network address of N2..4 & S1..2 is also shown below. -Ethernet Ethernet -Ethernet- 01 00 Network N2 166.155.44.128/25 Network N3 166.155.45.0/25 Satellite S1\ 166.155.44.0/26 Interface: B Network N4 166.155.45.128/25 Interface: A Router R2 Interface: A Router R1 Interface: D 166.155.46.11 Interface: C Interface: B 'Satellite S2 166.155.44.64/26 Interface: C 166.155.46.22 Interface: A 166.155.46.33 Gateway Router R3Interface: B Interface: X ISP Router 122.177.93.55 - Ethernet Network N1 512 Nodes The organization has 3 routers. Router R1 is connected the networks N1..4, its IP address on interface D connected to N1 is 166.155.46.11. Router R2 is connected to satellite sites S1 & S2, as well as network N1, its IP address on interface C connected to N1 is 166.155.46.22. Router R3 is connected to network N1 and to the ISP gateway, its IP on interface A connected to N1 is 166.155.46.33. The ISP gateway IP address is 122.177.93.55. Use address aggregation to complete the routing tables of routers R1, R2, R3 and the ISP's routing table's entry corresponding to the organization. (Note: use slash notation for network addresses on first column and use dot notation for internet address on second column) Use address aggregation to complete the routing tables of routers R1, R2, R3 and the ISP's routing table's entry corresponding to the organization. (Note: use slash notation for network addresses on first column and use dot notation for internet address on second column) Network Address/Prefix Blank1 Blank2 Blank3 Blank4 Blank5 0.0.0.0/0 Blank7 Blank8 Blank9 0.0.0.0/0 Router R1 Blank11 Blank12 Blank13 0.0.0.0/0 Next Hop Router R2 Network Address/Prefix Next Hop 166.155.46.22 Blank15 Blank6 Router R3 Network Address/Prefix Next Hop Blank10 166.155.46.22 166.155.46.11 Blank14 ISP Router Network Address/Prefix Next Hop R3 Interface A B C D D D Interface A B C C Interface A A A B Interface X