Routing table shows 2 subnets and 1 default route

1st subnet is 10.1.0.0 255.255.255.0 = 10.1.0.0/24
It means, you are taking care about 24 bits/3 octets of the IP address: 10.1.0
In other words, every packet which begins with 10.1.0.X will be forwarded to 192.168.2.2.
If you have a closer look, there are 2 packets matching:
+ 10.1.0.14
+ 10.1.0.123

2nd subnet is 10.1.0.0 255.255.0.0 = 10.1.0.0/16
It means, you are taking care only about 16 bits/2 octets of the IP address: 10.1. You dont take care, what is further.
In other words, every packet which begins with 10.1.X.X (and not matching first subnet) will be forwarded to 192.168.3.3.
+ 10.1.1.10
+ 10.1.4.6

YOU CAN’T PUT HERE THESE IP 10.1.0.14 / 10.1.0.123 BECAUSE THEY MATCH THE FIRST NETWORK (BASED ON LONGEST MATCH RULE)

Last one is “default route” used for packets not matching any of networks above. Put the remaining ones:
+ 10.2.1.3
+ 10.6.8.4

I hope, all is clear now. If not, take pen, paper, write those network binnary and follow the longest match rule.

Just see above lines
ip route 10.1.0.0 255.255.255.0 192.168.2.2
means i care about 10.1.0.X (so all ip having 10.1.0.x are sent to 192.168.2.2)

ip route 10.1.0.0 255.255.0.0 192.168.3.3 means i care about 10.1.X.X (all IP having 10.1.X.X are sent t0 192.168.3.3)

Hope that helps

with a wildcard of 0.0.0.0 0.0.0.0 it will match any remote network.
with a subnet mask of 255.255.255.0 and a network of 10.1.0.0 the address range must be in 10.1.0.1 to 10.1.0.254.

the destition host of 10.2.1.3 and 10.6.8.4 will use 192.168.1.1 as gateway because of changing of second byte which mean they are in network 10.0.0.0/8.

for destition host 10.1.0.14 and 10.1.0.123 will use a gateway of 10.1.2.2, because the two hosts use a /24 subnet mask which match with our second statement.

with a subnet mask of 255.255.0.0 and 10.1.0.0 the address range begin 10.1.0.1 to 10.1.255.254. the hosts 10.1.1.10 and 10.1.4.6 use a subnet mask of /16.

9tut you right.

Thanks

Best Regard
Admins

Think this way… you are travelling from Canada to USA. your Source address (IP) is Canada and Destination (IP) is USA. If you loose one of these you will never be able to get back. But when you travel by bus or plane the ticket you are getting that is your MAC address which says the start point and the end point. When you get to the next bus or plane then you get another MAC address.

So this way always remember IP address never change but MAC address always get change in the route. Hope it will help you to understand. If I make any mistake to explain some one please correct me. Thank you!

Josh November 4th, 2013
Answer to #5 should be rewritten. It says:
Next hop 192.168.1.1:
+ 10.2.1.3
+ 10.6.8.4
Next hop 192.168.2.2:
+ 10.1.0.14
+ 10.1.0.123
Next hop 192.168.3.3:
+ 10.1.1.10
+ 10.1.4.6
BUT in the explanation, it says 10.1.1.10 would take the more specific path (i.e. 10.1.0.0 255.255.255.0 not 255.255.0.0). It should read as follows:
Next hop 192.168.1.1:
+ 10.2.1.3
+ 10.6.8.4
Next hop 192.168.2.2:
+ 10.1.1.10
+ 10.1.4.6
Next hop 192.168.3.3:
+ 10.1.0.14
+ 10.1.0.123
9tut November 5th, 2013
@Josh: The explanation was wrong. Thanks for your detection, we updated it!

please updated with correct answer.

“Next hop 192.168.2.2:
+ 10.1.1.10
+ 10.1.4.6″

Because the 3rd octect digit of 1 does not match the 0 in the static route with netmask of 255.255.255.0, that address would move on to the /16 route that only cares about the first 2 octets. So Mac is right on this one

Answer to #5 should be rewritten. It says:
Next hop 192.168.1.1:
+ 10.2.1.3
+ 10.6.8.4

Next hop 192.168.2.2:
+ 10.1.0.14
+ 10.1.0.123

Next hop 192.168.3.3:
+ 10.1.1.10
+ 10.1.4.6

Local(config)# ip route 0.0.0.0 0.0.0.0 192.168.1.1 (10.X.Y.Z)
Local(config)# ip route 10.1.0.0 255.255.255.0 192.168.2.2 (more specific. 10.1.0.X)
Local(config)# ip route 10.1.0.0 255.255.0.0 192.168.3.3 (10.1.X.Y)

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Next hop 192.168.2.2:
+ 10.1.0.14
+ 10.1.0.123

Next hop 192.168.3.3:
+ 10.1.1.10
+ 10.1.4.6

BUT in the explanation, it says 10.1.1.10 would take the more specific path (i.e. 10.1.0.0 255.255.255.0 not 255.255.0.0). It should read as follows:

Next hop 192.168.1.1:
+ 10.2.1.3
+ 10.6.8.4

Next hop 192.168.2.2:
+ 10.1.1.10
+ 10.1.4.6

Next hop 192.168.3.3:
+ 10.1.0.14
+ 10.1.0.123