![]() In that case, if connectivity is not impeded, then these events can be ignored.ĥ478(S): IPsec Services has started successfully.ĥ479(S): IPsec Services has been shut down successfully. This error may also indicate interoperability problems with other IPsec implementations. If these errors persist, verify that the packets sent from the remote computer are the same as those received by this computer. This is usually caused by malfunctioning hardware that is corrupting packets. This could also be a spoofing attack attempt.Ĥ965(S): IPsec received a packet from a remote computer with an incorrect Security Parameter Index (SPI). This is usually due to the remote computer changing its IPsec policy without informing this computer. The inbound packet had too low a sequence number to ensure it was not a replay.Ĥ963(S): IPsec dropped an inbound clear text packet that should have been secured. If this problem persists, it could indicate a replay attack against this computer.Ĥ962(S): IPsec dropped an inbound packet that failed a replay check. This error might also indicate interoperability problems with other IPsec implementations.Ĥ961(S): IPsec dropped an inbound packet that failed a replay check. Verify that the packets sent from the remote computer are the same as those received by this computer. ![]() If this problem persists, it could indicate a network issue or that packets are being modified in transit to this computer. There is no recommendation for this subcategory in this document, unless you know exactly what you need to monitor at IPsec Driver level.Ĥ960(S): IPsec dropped an inbound packet that failed an integrity check. This subcategory is outside the scope of this document. This may indicate that either the network card is not working correctly or the driver needs to be updated.Ī high rate of packet drops by the IPsec filter driver may indicate attempts to gain access to the network by unauthorized systems.įailure to process IPsec filters poses a potential security risk because some network interfaces may not get the protection that is provided by the IPsec filter. Network packets received with incorrect Security Parameter Index (SPI). Network packets dropped due to being in plaintext. Network packets dropped due to replay check failure. Network packets dropped due to integrity check failure. Startup and shutdown of the IPsec services. Audit IPsec Driver allows you to audit events generated by IPSec driver such as the following:
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