![]() ![]() ![]() Quick ping to test things: PS C:\Users\info> ping 2001:DB8:3:3::3 I can check my IPv6 address here: PS C:\Users\info> ipconfig When I use Windows 10 as a client, it’s working PS C:\Windows\system32> Set-NetIsatapConfiguration -State Enabled -Router 10.56.100.130 -PassThru This time, I’m running Cisco IOS XE Software, Version 17.04.01a on an ISR4331. It took a bit longer but I tested this today. I don’t see anything meaningful with debug ipv6 nd. The client doesn’t get an IPv6 address though. With the CSR1000v, I do see some interaction: R1#show int tun0 | include packetsġ3 packets output, 1092 bytes, 0 underruns R3#show int tun0 | include packets With IOSv, I don’t see any packets making it to the other side: R1#show int tun0 | include packetsĥ minute input rate 0 bits/sec, 0 packets/secĥ minute output rate 0 bits/sec, 0 packets/secĨ7 packets output, 5728 bytes, 0 underruns R3#show int tun0 | include packetsĩ5 packets input, 10036 bytes, 0 no buffer On both routers, I enabled debug ipv6 nd. I’m beginning to think this is CML related. I have confirmed full connectivity via OSPF. Which differs slightly from output in the course notes. The headend (R3) sh ipv6 int tunnel 0 output is as follows: Tunnel0 is up, line protocol is up ND NS retransmit interval is 1000 milliseconds ND reachable time is 30000 milliseconds (using 30000) ND DAD is enabled, number of DAD attempts: 1 ICMP error messages limited to one every 100 milliseconds IPv6 is enabled, link-local address is FE80::C0A8:C01 The client is not acquiring an ipv6 address. The configs are identical apart form the interfaces being Gigabit and command no ipv6 nd ra suppress being slightly different. I tried to lab this up in CML2 but couldn’t get it working. ![]()
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