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[ScreenOS] Which condition does the NetScreen device generate the 'Phase I :Retransmission limit has been reached' message?



Article ID: KB3472 KB Last Updated: 16 Sep 2020Version: 7.0

This article explains which condition the NetScreen device generates the "re-trans timer expired" message and which condition generates the "Phase I :Retransmission limit has been reached " message.


VPN is not passing Phase I.  In the 'debug ike detail' output, the following is reported:

  • IKE VPN negotiation failed
  • "re-trans timer expired"
  • "Phase I :Retransmission limit has been reached "

For IKE Phase I and Phase 2 negotiation, when the NetScreen device does not receive a reply for any reason, it will send a re-transmit packet . 

The "Phase I :Retransmission limit has been reached" means the re-transmit limit has been reached.

The "re-trans timer expired" means that the re-transmit packet has no reply. It will re-transmit until the max re-try is reached.

Modification History:
2020-09-16: Article reviewed for accuracy; no changes required.
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