There is a good chance I'm just doing something wrong. However, after spending a couple of hours trying to troubleshoot, I'm a little perplexed as to why things are not working how I expect them to and thought I might try reaching out to the Pros.
The Issues at hand is related to Lab Chapter 24 Called IPv6 Addressing Troubleshooting, in which you have to identify some Router and host IPv6 Subnet mismatches, which was relatively simple. The issue is that after completing the lab and fixing all the subnet mismatches (getting 100% on the Lab) I am not able to ping any of the Hosts from their respective routers. What makes things even stranger to me is that I am able to ping hosts across the network, even going through the "problematic" routers. I have listed some examples below.
Lets Take PC3 and PC1 as we don't need to fix anything in the network to demonstrate the issue.
from PC1 ping PC3 | ping 2001:0DB8:75A4:95CA:63BC:FF4A:86AD:CBAE | This Ping Succeeds no problems here.
from R3 ping PC3 | ping 2001:0DB8:75A4:95CA:63BC:FF4A:86AD:CBAE | This fails. I have tried ping Ipv6 2001:0DB8:75A4:95CA:63BC:FF4A:86AD:CBAE with the prefix length, and unfortunately extended IPv6 pings are not supported in the simulator. Does this have to do with a Source address issue where the ICMP Echos are just not getting retuned to R3? What does this look like in the real world, do you always have to use extended pings when pinning hosts from routers using IPv6? or is there some way to fix this behavior.
I very much look forward to hearing from you all
Sincerely,
Nic
