Preventing Packet Spoofing with uRPF
I have to say that I'm a bit disappointed with the quality of the workbook so far. A lot of questions are very generic which makes it hard to figure out what exactly the task is asking for. I don't understand the sample solution of this task because it does not do what was asked in this task.
- Consider that R4's VLAN 146 link is an ISP connection providing Internet services.
- Ensure that R4 does not accept packets with IP addresses of the internal subnets on its connection to the ISP.
- Considering that there is another connection to the same ISP in the network, account for possible asymmetric routing issues on R4.