[c-nsp] IPSEC Tunnel Crash, transform set change

[nigel cooper]

Anyone experience this issue and can explain why it works.
 
Created an IPSEC tunnel with an ESP transform set to South America
and it worked for a while few hours and the crashed. Spoke to another engineer
who then changed the transform set to AH and brought the tunnel up and then changed
back to ESP and it has worked fine since.
 
Would anyone know why the tunnel would restore after
changing the transform set back to ESP and possible what an ISP might be doing
to cause the initial tunnel to crash ?