HP-UX IPv6 Transport Administrator Guide HP-UX 11i v3 (5992-6426, May 2013)

Flowchart 2 Procedures
A. ping successful? A message is printed on stdout for each ping packet returned by
the remote host. If packets are being returned, your system has network level
connectivity to the remote host.
B. Execute ping to remote IPv6 address. Using ping, send a message to the IPv6
address of the remote host. For example,
ping -f inet6 2001:db8::1234
C. Network unreachable? If so, examine the status of the local LAN interface first. If
not, proceed to F.
D. Local LAN interface up? Execute ifconfig on the local interface to be sure it is
configured up. If it is not, go to G. If it is up, call your HP representative for help.
E. Command hangs? If a message is not returned after executing ping, go to Flowchart
4, otherwise go to H.
F. Configure interface up. If you find the local interface is not up, execute ifconfig
with the appropriate flags set. Begin Flowchart 2 again. If the problem persists, go
to Flowchart 4.
G. Unknown host? (Error= Unknown host <hostname>?) If so, there is a problem with
the IPv6 address configuration for the host <hostname> in the /etc/hosts file or
on the name server. Go to Flowchart 3. Otherwise, proceed to I.
H. No route to host? (Error= Sendto: No route to host?) Use netstat -rn to examine
the routing table. If there is no route to host, go to J. Otherwise, call your HP
representative for help.
I. Check IPv6 Router or add route table entry. Add a route table entry to that host, or
ensure that the IPv6 router advertises correct prefixes. Then try Flowchart 2 again.
If the problem persists, go to Flowchart 6.
Diagnostic Flowcharts 37