1-11
Cisco ASA Series CLI Configuration Guide
Chapter 1 Introduction to the Cisco ASA
New Features
Inspection reset action change
Previously, when the ASA dropped a packet due to an inspection engine rule,
the ASA sent only one RST to the source device of the dropped packet. This
behavior could cause resource issues.
In this release, when you configure an inspection engine to use a reset action
and a packet triggers a reset, the ASA sends a TCP reset under the following
conditions:
•
The ASA sends a TCP reset to the inside host when the
service
resetoutbound
command is enabled. (The
service resetoutbound
command is disabled by default.)
•
The ASA sends a TCP reset to the outside host when the
service
resetinbound
command is enabled. (The
service resetinbound
command
is disabled by default.)
For more information, see the
service
command in the ASA command
reference.
This behavior ensures that a reset action will reset the connections on the ASA
and on inside servers; therefore countering denial of service attacks. For
outside hosts, the ASA does not send a reset by default and information is not
revealed through a TCP reset.
Also available in 8.4(4.1).
Increased maximum connection limits for
service policy rules
The maximum number of connections for service policy rules was increased
from 65535 to 2000000.
We modified the following commands:
set connection conn-max
,
set
connection embryonic-conn-max
,
set connection
per-client-embryonic-max
,
set connection per-client-max
.
We modified the following screen: Configuration > Firewall > Service Policy
Rules > Connection Settings.
Also available in 8.4(5)
High Availability and Scalability Features
Table 1-5
New Features for ASA Version 9.0(1)/ASDM Version 7.0(1) (continued)
Feature
Description
Summary of Contents for 5505 - ASA Firewall Edition Bundle
Page 28: ...Glossary GL 24 Cisco ASA Series CLI Configuration Guide ...
Page 61: ...P A R T 1 Getting Started with the ASA ...
Page 62: ......
Page 219: ...P A R T 2 Configuring High Availability and Scalability ...
Page 220: ......
Page 403: ...P A R T 2 Configuring Interfaces ...
Page 404: ......
Page 499: ...P A R T 2 Configuring Basic Settings ...
Page 500: ......
Page 533: ...P A R T 2 Configuring Objects and Access Lists ...
Page 534: ......
Page 601: ...P A R T 2 Configuring IP Routing ...
Page 602: ......
Page 745: ...P A R T 2 Configuring Network Address Translation ...
Page 746: ......
Page 845: ...P A R T 2 Configuring AAA Servers and the Local Database ...
Page 846: ......
Page 981: ...P A R T 2 Configuring Access Control ...
Page 982: ......
Page 1061: ...P A R T 2 Configuring Service Policies Using the Modular Policy Framework ...
Page 1062: ......
Page 1093: ...P A R T 2 Configuring Application Inspection ...
Page 1094: ......
Page 1191: ...P A R T 2 Configuring Unified Communications ...
Page 1192: ......
Page 1333: ...P A R T 2 Configuring Connection Settings and QoS ...
Page 1334: ......
Page 1379: ...P A R T 2 Configuring Advanced Network Protection ...
Page 1380: ......
Page 1475: ...P A R T 2 Configuring Modules ...
Page 1476: ......
Page 1549: ...P A R T 2 Configuring VPN ...
Page 1550: ......
Page 1965: ...P A R T 2 Configuring Logging SNMP and Smart Call Home ...
Page 1966: ......
Page 2059: ...P A R T 2 System Administration ...
Page 2060: ......
Page 2098: ...1 8 Cisco ASA Series CLI Configuration Guide Chapter 1 Troubleshooting Viewing the Coredump ...
Page 2099: ...P A R T 2 Reference ...
Page 2100: ......