Improving IPv4 Performance

Verifying the Source IPv4 Address

Source IP address verification helps defend against attacks, such as IP spoofing.

Configuring Direct Forwarding of IPv4 Fragment Packets

Configuring the Maximum Transmission Unit of the Interface

The MTU of an interface determines whether a packet needs to be fragmented when passing through this interface.

Configuring ICMP Attributes

This section describes how to control the ICMP error packet sending function to prevent ICMP error packet attacks.

Configuring TCP Attributes

Configuring TCP attributes involves the adjustment in the TCP timer, the size of a TCP sliding window, and TCP Maximum Segment Size (MSS).