EZD1778I

Explanation
 The Internet Key Exchange (IKE) daemon received
a message that is a copy of a message that was received and processed
earlier.   The previously received and processed messages (replays)
are ignored.
 In the message text:  exchange_name
The  name of the exchange for the message.
message_type
The  message type.
msg_id 
The  message ID number.
remote_ip 
The remote security endpoint IP specification.
remote_port  
The  remote port of the IKE daemon peer.
local_ip 
The local security endpoint IP specification. 
local_port 
The local port of the IKE daemon.

System action
 The IKE message is not processed; IKE daemon
processing continues. 

Operator response
 None.

System programmer response
 Replays are not errors.  Replays
might be caused by lost packets or network congestion. Usually, no
action is required. If there are a large number of replays, notify
the administrator of the remote security endpoint that you are receiving
a large number of replays. 

User response
 Not applicable.

Problem determination
 None.

Source
 z/OS® Communications
Server TCP/IP: IKE daemon

Module
 IKEv2ExchangeList.cpp

Routing code
 11

Descriptor code
 7

Automation
 This message is output to syslog.

Example
  EZD1778I IKE_SA_INIT request message ID 0 replay detected from 1.2.3.4 port 500 to  5.6.7.8 port 500