C H A P T E R
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Cisco ASA Series CLI Configuration Guide
1
Configuring Static and Default Routes
This chapter describes how to configure static and default routes on the ASA and includes the following
sections:
•
Information About Static and Default Routes, page 1-1
•
Licensing Requirements for Static and Default Routes, page 1-2
•
Guidelines and Limitations, page 1-2
•
Configuring Static and Default Routes, page 1-2
•
Monitoring a Static or Default Route, page 1-6
•
Configuration Examples for Static or Default Routes, page 1-8
•
Feature History for Static and Default Routes, page 1-9
Information About Static and Default Routes
To route traffic to a nonconnected host or network, you must define a static route to the host or network
or, at a minimum, a default route for any networks to which the ASA is not directly connected; for
example, when there is a router between a network and the ASA.
Without a static or default route defined, traffic to nonconnected hosts or networks generates the
following syslog message:
%ASA-6-110001: No route to
dest_address
from
source_address
You might want to use static routes in single context mode in the following cases:
•
Your networks use a different router discovery protocol from EIGRP, RIP, or OSPF.
•
Your network is small and you can easily manage static routes.
•
You do not want the traffic or CPU overhead associated with routing protocols.
The simplest option is to configure a default route to send all traffic to an upstream router, relying on the
router to route the traffic for you. However, in some cases the default gateway might not be able to reach
the destination network, so you must also configure more specific static routes. For example, if the
default gateway is outside, then the default route cannot direct traffic to any inside networks that are not
directly connected to the ASA.
In transparent firewall mode, for traffic that originates on the ASA and is destined for a nondirectly
connected network, you need to configure either a default route or static routes so the ASA knows out
of which interface to send traffic. Traffic that originates on the ASA might include communications to a
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: ......