Enabling Logging Of Ipsec Packets; Configuring The Df Bit Of Ipsec Packets - HP 6125XLG Configuration Manual

Step
2. Enter IPsec policy view or
IPsec policy template view.
3. Enable QoS pre-classify.

Enabling logging of IPsec packets

Perform this task to enable the logging of IPsec packets that are discarded because of reasons such as
IPsec SA lookup failure, AH-ESP authentication failure, and ESP encryption failure. The log information
includes the source and destination IP addresses, the SPI value, and the sequence number of a discarded
IPsec packet, and the reason for the failure.
To enable the logging of IPsec packets:
Step
1. Enter system view.
2. Enable the logging of IPsec
packets.

Configuring the DF bit of IPsec packets

Perform this task to configure the Don't Fragment (DF) bit in the new IP header of IPsec packets in one of
the following ways:
clear—Clears the DF bit in the new header.
•
set—Sets the DF bit in the new header.
•
copy—Copies the DF bit in the original IP header to the new IP header.
•
You can configure the DF bit in system view and interface view. The interface-view DF bit setting takes
precedence over the system-view DF bit setting. If the interface-view DF bit setting is not configured, the
interface uses the system-view DF bit setting.
Follow these guidelines when you configure the DF bit:
The DF bit setting takes effect only in tunnel mode, and it changes the DF bit in the new IP header
•
rather than the original IP header.
Configure the same DF bit setting on the interfaces where the same IPsec policy bound to a source
•
interface has been applied.
To configure the DF bit of IPsec packets on an interface:
Command
•
To enter IPsec policy view:
ipsec { policy | ipv6-policy }
policy-name seq-number
[ isakmp | manual ]
•
To enter IPsec policy template
view:
ipsec { policy-template |
ipv6-policy-template }
template-name seq-number
qos pre-classify
Command
system-view
ipsec invalid-spi-recovery enable
214
Remarks
Use either command.
By default, QoS pre-classify is
disabled.
Remarks
N/A
By default, the logging of IPsec
packets is disabled.