Installation guide

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Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance
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Chapter 7 Configuring Stickiness
Stickiness Overview
Related Topics
• Configuring Sticky Groups, page 7-11
• Sticky Types, page 7-2
• Sticky Groups, page 7-6
• Sticky Table, page 7-11
HTTP Header Stickiness
You can use HTTP-header information to provide stickiness. With HTTP header stickiness, you can
specify a header offset to provide stickiness based on a unique portion of the HTTP header.
Related Topics
• Configuring Sticky Groups, page 7-11
• Sticky Types, page 7-2
• Sticky Groups, page 7-6
• Sticky Table, page 7-11
IP Netmask and IPv6 Prefix Stickiness
You can use the source IP address, the destination IP address, or both to uniquely identify individual
clients and their requests for stickiness purposes based on their IP netmask or IPv6 prefix. However, if
an enterprise or a service provider uses a megaproxy to establish client connections to the Internet, the
source IP address no longer is a reliable indicator of the true source of the request. In this case, you can
use cookies or one of the other sticky methods to ensure session persistence.
Related Topics
• Configuring Sticky Groups, page 7-11
• Sticky Types, page 7-2
• Sticky Groups, page 7-6
• Sticky Table, page 7-11
Layer 4 Payload Stickiness
Layer 4 payload stickiness allows you to stick a client to a server based on the data in Layer 4 frames.
You can specify a beginning pattern and ending pattern, the number of bytes to parse, and an offset that
specifies how many bytes to ignore from the beginning of the data.
Related Topics
• Configuring Sticky Groups, page 7-11
• Sticky Types, page 7-2
• Sticky Groups, page 7-6
• Sticky Table, page 7-11