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Con the HA-Primary Clean Access Server, a. Access the HA-Primary CAS Directly

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Chapter 4 Configuring High Availability (HA) Installing a Clean Access Server High Availability Pair Configure the HA-Primary Clean Access Server The general sequence to configure the HA-Primary CAS is as follows: a. Access the HA-Primary CAS Directly, page 4-27 b. Configure the Host Information for the HA-Primary CAS, page 4-27 c. Configure HA-Primary Mode and Update, page 4-28 d. Configure the SSL Certificate, page 4-32 e. Reboot the HA-Primary CAS, page 4-33 f. Add the CAS to the CAM Using the Service IP, page 4-33 When done, continue to Configure the HA-Secondary Clean Access Server, page 4-34. a. Access the HA-Primary CAS Directly Each Clean Access Server has its own web admin console that allows configuration of certain limited Administration settings directly on the CAS. The CAS direct access web console must be used to configure CAS pairs for HA. To access the HA-Primary Clean Access Server's direct access web admin console: 1. Open a web browser and type the IP address of the trusted (eth0) interface of the CAS in the URL/address field, as follows: https:///admin (for example, https://172.16.1.2/admin). 2. Accept the temporary certificate and log in as user admin with the web console password specified during initial configuration. Note • In order to copy and paste values to/from configuration forms, Cisco recommends keeping both web consoles open for each CAS (primary and secondary). See also a. Access the HA-Secondary CAS Directly, page 4-34. • To ensure security, Cisco recommends changing the initial password of the CAS. b. Configure the Host Information for the HA-Primary CAS 3. Click the Network Settings link, then the DNS tab. 4. In the Host Name field, type the host name for the HA-Primary CAS. Make sure there is a domain in the Host Domain field, such as cisco.com. If necessary, add one and click Update. Note When configuring HA, it is mandatory to specify a Host Name for each machine in the HA-pair. The Host Name is case-sensitive and cannot be an IP address. Host Names are needed later for the Local Host Name and Peer Host Name fields of the HA Primary and HA Secondary configuration. The Local Host Name and Peer Host Name do not need to be resolvable via DNS; however, they are case-sensitive and need to match the Host Names you have specified for the machines. OL-20326-01 Cisco NAC Appliance Hardware Installation Guide 4-27

Section	Page
Cisco NAC Appliance Hardware Installation Guide	1
Contents	3
About This Guide	9
Cisco NAC Appliance Hardware Platforms	15
About Cisco NAC Appliance	15
FIPS 140-2 Compliant and Non-FIPS Hardware Platforms	15
NAC-3315, NAC-3355, and NAC-3395	17
NAC-3315 Serial Number Location	19
Cisco NAC-3315 Front and Rear Panels	19
Front Panel Features	19
Rear Panel Features	20
NAC-3355 Serial Number Location	22
Cisco NAC-3355 Front and Rear Panels	22
Front Panel Features	22
Rear Panel Features	24
NAC-3395 Serial Number Location	26
Cisco NAC-3395 Front and Rear Panels	26
Front Panel Features	26
Rear Panel Features	28
NAC-3310, NAC-3350, and NAC-3390	30
Cisco NAC-3310 Front and Rear Panels	32
Front Panel Features	32
Rear Panel Features	34
Cisco NAC-3350 Front and Rear Panels	35
Front Panel Features	35
Rear Panel Features	37
Cisco NAC-3390 Front and Rear Panels	38
Front Panel Features	39
Rear Panel Features	40
Cisco Product Identification Tool	41
Preparing for Installation	43
Safety Guidelines	44
General Precautions	44
Safety with Equipment	45
Safety with Electricity	45
Preventing Electrostatic Discharge Damage	47
Lifting Guidelines	47
Preparing Your Site for Installation	48
Site Planning	48
Rack Installation Safety Guidelines	49
Four-Post (Partially-Enclosed) Rack	49
Four-Post (Open) Rack	49
Site Environment	50
Airflow Guidelines	51
Temperature and Humidity Guidelines	51
Power Considerations	51
Method of Procedure	52
Shipping Package Contents	52
Failover Bundles	53
Required Equipment	53
Configuration Worksheets	53
Clean Access Manager (CAM) Configuration Worksheet	54
Clean Access Server (CAS) Configuration Worksheet	54
CAS Mode IP Addressing Considerations	55
Rack-Mounting Your Cisco NAC Appliance CAM/CAS	56
Mounting the NAC-3315 Appliance in a 4-Post Rack	57
NAC-3315 4-Post Rack-Mount Hardware Kit	57
Installing the NAC-3315 Slide Rails into a Rack	58
Installing the NAC-3315 Appliance into the Slide Rails	61
Mounting the NAC-3355/3395 Appliance in a Four-Post Rack	63
NAC-3355/3395 4-Post Rack-Mount Hardware Kit	64
Installing the NAC-3355/3395 Slide Rails Into the 4-Post Rack	64
Installing the NAC-3355/3395 Appliance Into the Slide Rails	67
Cisco NAC Appliance Licensing	68
Upgrading Cisco NAC Appliance Software	69
Downloading Cisco NAC Appliance Software	70
Upgrading Firmware	70
Installing the Clean Access Manager and Clean Access Server	71
Overview	71
Important Release Information	72
Installing the Clean Access Manager	72
Overview	72
Summary of Steps For New Installation	73
Connect the Clean Access Manager	74
Install the Clean Access Manager (CAM) Software from CD-ROM	75
Perform the Initial CAM Configuration	76
Configuration Utility Script	76
Access the CAM Web Console	81
Install CAM License	83
Add Additional Licenses	85
Important Notes for SSL Certificates	87
Installing the Clean Access Server	88
Overview	88
Switch/Router Configuration	88
Virtual Gateway Mode Connection Requirements	89
Switch Support for CAS Virtual Gateway/VLAN Mapping (IB and OOB)	90
Determining VLANs For Virtual Gateway	90
Summary of Steps For New Installation	91
Connect the Clean Access Server	92
Install the Clean Access Server (CAS) Software from CD-ROM	92
Perform the Initial CAS Configuration	94
Configuration Utility Script	94
Important Notes for SSL Certificates	103
Cisco NAC Appliance Connectivity Across a Firewall	104
Configuring the CAS Behind a NAT Firewall	106
Connectivity Across a Wide Area Network	107
Configuring Additional NIC Cards	107
Serial Connection to the CAM and CAS	109
Configuring Boot Settings on the Cisco NAC Appliance CAM/CAS	110
Useful CLI Commands for the CAM/CAS	112
CAM CLI Commands	112
CAS CLI Commands	113
CAS CLI Commands for Cisco NAC Appliance	113
CAS CLI Commands for Cisco NAC Profiler	114
Manually Restarting the CAM/CAS Configuration Utility	116
Troubleshooting the Installation	117
Verify/Change Current Master Secret on CAM/CAS	118
Recover From Corrupted Master Secret	118
Network Interface Card (NIC) Driver Not Supported	119
Resetting and Restoring an Unreachable Clean Access Server	119
Enabling TLSv1 on Internet Explorer Version 6	119
Powering Down the NAC Appliance	120
Configuring High Availability (HA)	121
Adding High Availability Cisco NAC Appliance To Your Network	121
Installing a Clean Access Manager High Availability Pair	123
CAM High Availability Overview	124
Before Starting	127
Connect the Clean Access Manager Machines	128
Serial Connection	129
Configure the HA-Primary CAM	129
Configure the HA-Secondary CAM	132
Complete the Configuration	136
Upgrading an Existing Failover Pair	136
Failing Over an HA-CAM Pair	136
Accessing High Availability Pair CAM Web Consoles	137
Determining Active and Standby CAM	137
Determining Primary and Secondary CAM	137
Installing a Clean Access Server High Availability Pair	137
CAS High Availability Overview	138
Failover Events	141
Choosing External IPs for Link-Based Failover	142
CAS High Availability Requirements	142
Physical Connection	142
Switch Interfaces for OOB Deployment	143
Service IP Addresses	143
Host Names	143
DHCP Synchronization	143
SSL Certificates	143
Before Starting	144
Selecting and Configuring the Heartbeat UDP Interface	145
Serial Port High-Availability Connection	146
Configure High Availability	146
Configure the HA-Primary Clean Access Server	147
a. Access the HA-Primary CAS Directly	147
b. Configure the Host Information for the HA-Primary CAS	147
c. Configure HA-Primary Mode and Update	148
d. Configure the SSL Certificate	152
e. Reboot the HA-Primary CAS	153
f. Add the CAS to the CAM Using the Service IP	153
Configure the HA-Secondary Clean Access Server	154
a. Access the HA-Secondary CAS Directly	154
b. Configure the Host Information for the HA-Secondary CAS	154
c. Configure HA-Secondary Mode and Update	154
d. Configure the SSL Certificate	158
e. Reboot the HA-Secondary CAS	158
Connect the Clean Access Servers and Complete the Configuration	158
Failing Over an HA-CAS Pair	159
Modifying CAS High Availability Settings	160
To Change IP Settings for an HA-CAS	160
Upgrading an Existing Failover Pair	161
Configuring High Availability for Virtual Gateway Mode	162
Useful CLI Commands for HA	163
Clean Access Manager	163
Verifying Active/Standby Runtime Status on the HA CAM	163
Clean Access Server	164
HA CAS Configuration Status	164
Heartbeat/Link-Based Connections	164
Link-Detect Interfaces	165
Active/Standby Status	165
Accessing High Availability Pair CAS Web Consoles	166
Determining Active and Standby CAS	166
Determining Primary and Secondary CAS	166
Password Recovery	167
Recovering Root Password for CAM/CAS	167
Recovering Root Password for CAM/CAS (Release 3.5.x or Below)	167
Open Source License Acknowledgements	169
Notices	169
OpenSSL/Open SSL Project	169
License Issues	169

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4-27

Cisco NAC Appliance Hardware Installation Guide

OL-20326-01

Chapter 4

Configuring High Availability (HA)

Installing a Clean Access Server High Availability Pair

Configure the HA-Primary Clean Access Server

The general sequence to configure the HA-Primary CAS is as follows:

a. Access the HA-Primary CAS Directly, page 4-27

b. Configure the Host Information for the HA-Primary CAS, page 4-27

c. Configure HA-Primary Mode and Update, page 4-28

d. Configure the SSL Certificate, page 4-32

e. Reboot the HA-Primary CAS, page 4-33

f. Add the CAS to the CAM Using the Service IP, page 4-33

When done, continue to

Configure the HA-Secondary Clean Access Server, page 4-34

a. Access the HA-Primary CAS Directly

Each Clean Access Server has its own web admin console that allows configuration of certain limited

Administration settings directly on the CAS. The CAS direct access web console must be used to

configure CAS pairs for HA.

To access the HA-Primary Clean Access Server’s direct access web admin console:

Open a web browser and type the IP address of the trusted (eth0) interface of the CAS in the

URL/address field, as follows:

https://<primary_CAS_eth0_IP_address>/admin

(for example,

https://172.16.1.2/admin

Accept the temporary certificate and log in as user

admin

with the web console password specified

during initial configuration.

Note

•

In order to copy and paste values to/from configuration forms, Cisco recommends keeping both web

consoles open for each CAS (primary and secondary). See also

a. Access the HA-Secondary CAS

Directly, page 4-34

•

To ensure security, Cisco recommends changing the initial password of the CAS.

b. Configure the Host Information for the HA-Primary CAS

Click the

Network Settings

link, then the

DNS

tab.

In the

Host Name

field, type the host name for the HA-Primary CAS. Make sure there is a domain

in the

Host Domain

field, such as cisco.com. If necessary, add one and click

Update

Note

When configuring HA, it is mandatory to specify a Host Name for each machine in the HA-pair.

The Host Name is case-sensitive and cannot be an IP address. Host Names are needed later for

the

Local Host Name

and

Peer Host Name

fields of the HA Primary and HA Secondary

configuration. The

Local Host Name

and

Peer Host Name

do not need to be resolvable via

DNS; however, they are case-sensitive and need to match the Host Names you have specified for

the machines.