PLease i need explanation

Dave administers a network with the addressing scheme: 10.50.20.0/24 Default Gateway of 10.50.20.1

Allen administers a network with the addressing scheme: 192.168.32.0/24 Default Gateway of 192.168.32.1

On April 9, 2017 8:00 am the two networks are successfully inter-connected via an Ethernet interface on a CISCO 2600 router.

a) On April 15, 2017 10:15am, Allen pings the local IP address 192.168.32.126 from the host computer 192.168.32.100/24, Allen gets the following:

C:\ping 192.168.32.126 Request timed out. Request timed out. Request timed out.

At 10:20am Allen checks his network but makes no changes. At 10:25am Dave does some checking on his network, while checking Dave notices a printer is powered off. Dave turns on the printer which has an IP address of 10.50.20.135/24 default gateway 10.50.20.1. No other change was made to either network or network equipment. At 10:30am

Allen attempts to ping 192.168.32.126 again Allen now gets the following: C:\ping 192.168.32.126

Reply from 192.168.32.126: bytes=32 time=12ms TTL=64

Reply from 192.168.32.126: bytes=32 time=18ms TTL=64

Reply from 192.168.32.126: bytes=32 time=7ms TTL=64

Explain in detail what is occurring and why Allen now gets a reply. Is Dave or Allen the administrator of the CISCO 2600 router? How do you know? (2.5 points) b) On April 17, 2017 2:00pm, Allen has no problem connecting to devices on Daves network (everything appears to be working perfectly). However, when Allen tries to ping those same devices on Daves network he gets Request timed out. (2.5 points) i. Explain what is going on.

ii. Give your best estimate as to when the last configuration changes were made to the CISCO 2600 router. Explain your answer.