4-35
Cisco NAC Appliance Hardware Installation Guide
OL-20326-01
Chapter 4 Configuring High Availability (HA)
Installing a Clean Access Server High Availability Pair
Figure 4-16
Failover —HA-Secondary Mode
6.
In the HA-Secondary form, complete the following fields:
–
Trusted-side Service IP Address
: The IP address by which the pair is addressed from the
trusted
network. Use the same value as for the primary CAS (10.201.2.112 in the example in
Figure 4-9 on page 4-20
).
–
Untrusted-side Service IP Address
: The IP address by which the pair is addressed from the
untrusted
(managed) network. Use the same value as for the primary CAS (10.201.50.243 in the
example).
•
Trusted-side Link-detect IP Address (Optional)
: When an IP address (e.g. for an upstream router)
is optionally entered in this field, the CAS will attempt to ping this address. Typically, the same
trusted-side link-detect address is entered on both the HA-Primary and HA-Secondary CAS, but you
can specify different addresses for each CAS if your network topology is different.
