Here are some practice problems using an IP routing table. First off, the table:
| Network | Mask | Interface |
|---|---|---|
| 162.142.0.0 | 255.255.0.0 | I0 |
| 21.128.0.0 | 255.192.0.0 | I1 |
| 199.192.52.0 | 255.255.255.0 | I2 |
| 190.32.0.0 | 255.255.240.0 | I3 |
| default | default | I4 |
In case you were wondering, I1 and I3 are the tricky ones.
Now, for each destination address, say which interface it would be sent out. Click on the address to see what I think the answer should be.
| 1. 162.142.10.12 | 2. 199.192.51.100 | 3. 21.135.22.89 |
| 4. 190.32.15.124 | 5. 199.192.52.88 | 6. 21.242.233.18 |
| 7. 162.124.0.18 | 8. 47.184.19.3 | 9. 190.32.37.122 |