Sometimes, the server is slow to process the ESP config so our first probes
don't elicit a response. Abuse the licensing information packet which comes
after the connection is set up, and send a second set of probes when it
arrives.
Perhaps we should actually send three probes, half a second apart.
Signed-off-by: David Woodhouse <email address hidden>
Revert "Set ESP Next Header field to 0x29 for IPv6 packets"
This reverts commit 02ae906bb691c8b342d7ff0875e200ce55c18f2a. Turns out
Pulse doesn't *accept* ESP frames with the correct Next-Header field
for IPv6. You have to send 0x04 (IPIP). So I cleaned it up and removed
the duplication for nothing...
Might need to put this back when we work out how GPST does IPv6.
Signed-off-by: David Woodhouse <email address hidden>