[SNMP4J] [Question]about the TimeCheck:
wei tong
thinkinrelativity at gmail.com
Wed Jul 8 09:58:12 CEST 2009
hi all,hi Frank,
I read the following code and RFC,i knew the code implements the
TimeWindow.but i cant understand clearly,
why a Request with different EngineID can jump the time Check?
that means if we using a snmptool to sent trap to local TrapReceiver, it
will be refused after 150 sec
because the "entry.getLatestReceivedTime()" is always zero.
thx for all.
if (localTime.getEngineID().equals(entry.getEngineID())) {
/* Entry found, we are authoritative */
if ((localTime.getEngineBoots() == 2147483647) ||
(localTime.getEngineBoots() != entry.getEngineBoots()) ||
(Math.abs(now + localTime.getTimeDiff() -
entry.getLatestReceivedTime())
> 150)) {
if (logger.isDebugEnabled()) {
logger.debug(
"CheckTime: received message outside time window
(authorative):"+
((localTime.getEngineBoots() !=
entry.getEngineBoots()) ? "engineBoots differ" :
""+(Math.abs(now + localTime.getTimeDiff() -
entry.getLatestReceivedTime()))+" > 150"));
}
return SnmpConstants.SNMPv3_USM_NOT_IN_TIME_WINDOW;
}
else {
if (logger.isDebugEnabled()) {
logger.debug("CheckTime: time ok (authorative)");
}
return SnmpConstants.SNMPv3_USM_OK;
}
}
else ...
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