Cisco CISCO876-SEC-I-K9 Configuration Guide - Page 83

Enable Policy Lookup, Con IPSec Transforms and Protocols

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Chapter 7 Configuring VPNs Using an IPSec Tunnel and Generic Routing Encapsulation Configure a VPN Enable Policy Lookup Perform these steps to enable policy lookup through AAA, beginning in global configuration mode: Step 1 Command or Action aaa new-model Purpose Enables the AAA access control model. Example: Router(config)# aaa new-model Router(config)# Step 2 Step 3 Step 4 aaa authentication login {default | list-name} Specifies AAA authentication of selected users at method1 [method2...] login, and specifies the method used. Example: Router(config)# aaa authentication login rtr-remote local Router(config)# This example uses a local authentication database. You could also use a RADIUS server for this. See the Cisco IOS Security Configuration Guide and the Cisco IOS Security Command Reference for details. aaa authorization {network | exec | commands Specifies AAA authorization of all level | reverse-access | configuration} {default | network-related service requests, including PPP, list-name} [method1 [method2...]] and the method used to do so. Example: Router(config)# aaa authorization network rtr-remote local Router(config)# This example uses a local authorization database. You could also use a RADIUS server for this. See the Cisco IOS Security Configuration Guide and the Cisco IOS Security Command Reference for details. username name {nopassword | password password | password encryption-type encrypted-password} Example: Router(config)# username cisco password 0 cisco Router(config)# Establishes a username-based authentication system. This example implements a username of cisco with an encrypted password of cisco. Configure IPSec Transforms and Protocols A transform set represents a certain combination of security protocols and algorithms. During IKE negotiation, the peers agree to use a particular transform set for protecting data flow. During IKE negotiations, the peers search in multiple transform sets for a transform that is the same at both peers. When such a transform set is found, it is selected and applied to the protected traffic as a part of both peers' configurations. OL-5332-01 Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide 7-5

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7-5
Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide
OL-5332-01
Chapter 7
Configuring VPNs Using an IPSec Tunnel and Generic Routing Encapsulation
Configure a VPN
Enable Policy Lookup
Perform these steps to enable policy lookup through AAA, beginning in global configuration mode:
Command or Action
Purpose
Step 1
aaa new-model
Example:
Router(config)#
aaa new-model
Router(config)#
Enables the AAA access control model.
Step 2
aaa authentication login
{
default
|
list-name
}
method1
[
method2...
]
Example:
Router(config)#
aaa authentication login
rtr-remote local
Router(config)#
Specifies AAA authentication of selected users at
login, and specifies the method used.
This example uses a local authentication database.
You could also use a RADIUS server for this. See
the
Cisco IOS Security Configuration Guide
and
the
Cisco IOS Security Command Reference
for
details.
Step 3
aaa authorization {network | exec | commands
level
| reverse-access | configuration} {default |
list-name
} [
method1
[
method2...
]]
Example:
Router(config)#
aaa authorization network
rtr-remote local
Router(config)#
Specifies AAA authorization of all
network-related service requests, including PPP,
and the method used to do so.
This example uses a local authorization database.
You could also use a RADIUS server for this. See
the
Cisco IOS Security Configuration Guide
and
the
Cisco IOS Security Command Reference
for
details.
Step 4
username
name
{
nopassword
|
password
password
|
password
encryption-type
encrypted-password
}
Example:
Router(config)#
username
cisco
password 0
cisco
Router(config)#
Establishes a username-based authentication
system.
This example implements a username of
cisco
with an encrypted password of
cisco
.
Configure IPSec Transforms and Protocols
A transform set represents a certain combination of security protocols and algorithms. During IKE
negotiation, the peers agree to use a particular transform set for protecting data flow.
During IKE negotiations, the peers search in multiple transform sets for a transform that is the same at
both peers. When such a transform set is found, it is selected and applied to the protected traffic as a part
of both peers’ configurations.