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Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Remote Access IPsec VPNs
Configuring Remote Access IPsec VPNs
Defining a Tunnel Group
This section describes how to configure a tunnel group, which is a set of records that contain tunnel
connection policies. You configure a tunnel group to identify AAA servers, specify connection
parameters, and define a default group policy. The ASA stores tunnel groups internally.
Command
Purpose
To configure an IKEv1 transform set:
crypto ipsec ikev1 transform-set
transform-set-name
encryption-method
[
authentication
]
Example:
hostname(config)#
crypto ipsec transform set
FirstSet esp-3des esp-md5-hmac
hostname(config)#
Configures an IKEv1 transform set that specifies the IPsec IKEv1
encryption and hash algorithms to be used to ensure data integrity.
Use one of the following values for
encryption
:
•
esp-aes
to use AES with a 128-bit key.
•
esp-aes-192
to use AES with a 192-bit key.
•
esp-aes-256
to use AES with a 256-bit key.
•
esp-des
to use 56-bit DES-CBC.
•
esp-3des
to use triple DES algorithm.
•
esp-null
to not use encryption.
Use one of the following values for
authentication
:
•
esp-md5-hmac
to use the MD5/HMAC-128 as the hash algorithm.
•
esp-sha-hmac
to use the SHA/HMAC-160 as the hash algorithm.
•
esp-none
to not use HMAC authentication.
To configure an IKEv2 proposal:
crypto ipsec ikev2 ipsec-proposal
proposal_name
Then:
protocol
{
esp
} {
encryption
{
des
|
3des
|
aes
|
aes-192
|
aes-256
|
null
} |
integrity
{
md5
|
sha-1
}
Example:
hostname(config)#
crypto ipsec ikev2
ipsec-proposal secure_proposal
hostname(config-ipsec-proposal)#
protocol
esp
encryption
des
integrity
md5
Configures an IKEv2 proposal set that specifies the IPsec IKEv2
protocol, encryption, and integrity algorithms to be used.
esp
specifies the Encapsulating Security Payload (ESP) IPsec protocol
(currently the only supported protocol for IPsec).
Use one of the following values for
encryption
:
•
des
to use 56-bit DES-CBC encryption for ESP.
•
3des
(default) to use the triple DES encryption algorithm for ESP.
•
aes
to use AES with a 128-bit key encryption for ESP.
•
aes-192
to use AES with a 192-bit key encryption for ESP.
•
aes-256
to use AES with a 256-bit key encryption for ESP.
•
null
to not use encryption for ESP.
Use one of the following values for
integrity
:
•
md5
specifies the md5 algorithm for the ESP integrity protection.
•
sha-1
(default) specifies the Secure Hash Algorithm (SHA) SHA-1,
defined in the U.S. Federal Information Processing Standard (FIPS),
for ESP integrity protection.
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: ......