Common utility sets supporting IPv6 and IPv4 can help router administrators test or troubleshoot network problems in some cases, such as `ndptool send` and `arping`, sending and detecting NDP, etc
I intend to use the following path:
```
send ipv6 ndp
send ipv6 ndisc6
send ipv6 rdisc6
send ipv4 arping
traceroute ipv4 <host> tcp port <port>
traceroute ipv6 <host> tcp port <port>
```