The PAN CLI tries to do friendly auto-completion things and makes the SSH
Collector fail sporadically. This change uses the "set cli scripting-mode on"
command to calm down the PAN CLI and works around the extra echoed prompts that
get sent.
This change also adds collection of IPv6 neighbor information.
While setting up an sshcollector, I found that the script doesn't handle an
arpless device very gracefully. The log looks like:
[46567] 2018-04-10 16:59:08 warn WARNING: no entries received from <IP>
Can't use string ("1") as an ARRAY ref while "strict refs" in use at perl5/bin/netdisco-sshcollector line 114, <__ANONIO__> line 3.
This is fixed by making the process function always return the expected
structure, even if it's empty. After this error, the following errors showed
up:
[53232] 2018-04-10 17:06:15 warn WARNING: no entries received from <IP>
[53210] 2018-04-10 17:06:15 info [134.71.0.126] arpnip - retrieved 0 entries
Use of uninitialized value in sprintf at perl5/bin/netdisco-sshcollector line 119, <__ANONIO__> line 3.
[53210] 2018-04-10 17:06:15 info arpnip - processed ARP Cache entries from 1 devices
This is because $stats{entry} only becomes an integer by being incremented, so
if there aren't any entries, it never exists. This is fixed by starting it at 0.
Brian De WolfandOliver Gorwits