1-9
Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Filtering Services
Filtering URLs and FTP Requests with an External Server
For Websense:
hostname(config)#
url-server
(
if_name
)
host
local_ip
[
timeout
seconds
] [
protocol TCP
|
UDP
version [1|4]
[
connections
num_conns
]]
Example:
hostname(config)# url-server (perimeter) host
10.0.1.1 protocol TCP version 4
Identifies the address of the filtering server.
if_name
is the name of the ASA interface connected to the
filtering server (the default is inside). For the
vendor
{
secure-computing | n2h2
} option, use
secure-computing
as the vendor string; however,
n2h2
is acceptable for backward compatibility. When
the configuration entries are generated,
secure-computing
is saved as the vendor string. The
host
local_ip
option
is the IP address of the URL
filtering server. The
port
number
option is the Secure
Computing SmartFilter server port number of the
filtering server; the ASA also listens for UDP replies
on this port.
Note
The default port is 4005, which is used by the
Secure Computing SmartFilter server to
communicate to the ASA via TCP or UDP.
For information about changing the default
port, see the
Filtering by N2H2
Administrator's Guide
.
The
timeout
seconds
option is the number of seconds
that the ASA should keep trying to connect to the
filtering server. The
connections
number
option is
the number of tries to make a connection between the
host and server.
The example identifies a Websense filtering server
with the IP address 10.0.1.1 on a perimeter interface
of the ASA.Version 4, which is enabled in this
example, is recommended by Websense because it
supports caching.
For Secure Computing SmartFilter (formerly N2H2):
hostname(config)#
url-server
(
if_name
)
vendor
{
secure-computing
|
n2h2
}
host
local_ip
[
port
number
] [
timeout
seconds
] [
protocol
{
TCP
[
connections
number
]} |
UDP
]
Example:
hostname(config)# url-server (perimeter) vendor n2h2
host 10.0.1.1
hostname(config)# url-server (perimeter) vendor n2h2
host 10.0.1.2
The example identifies redundant Secure Computing
SmartFilter servers that are both on a perimeter
interface of the ASA.
Command
Purpose
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: ......