Cisco Cisco NAC Appliance 4.1.0
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Cisco NAC Appliance - Clean Access Server Installation and Administration Guide
OL-12213-01
Chapter 5 Clean Access Server Managed Domain
Configure ARP Entries
Note
For Virtual Gateway mode, the Gateway address is not optional and must always be specified.
4.
Choose the appropriate interface of the Clean Access Server machine from the Link dropdown list.
In most cases this is eth0, since most static routing scenarios involve directing traffic from the
untrusted to the trusted network.
In most cases this is eth0, since most static routing scenarios involve directing traffic from the
untrusted to the trusted network.
5.
Optionally, type a Description of the route definition.
6.
Click Add Route.
Configure ARP Entries
An ARP (Address Resolution Protocol) entry allows you to associate IP addresses with one of the Clean
Access Server’s interfaces. An ARP entry is typically used to advertise to the trusted network that certain
addresses are within the Clean Access Server’s managed domain, so that traffic for the managed clients
can be directed to the Clean Access Server’s untrusted interface.
Access Server’s interfaces. An ARP entry is typically used to advertise to the trusted network that certain
addresses are within the Clean Access Server’s managed domain, so that traffic for the managed clients
can be directed to the Clean Access Server’s untrusted interface.
ARP entries are automatically created for:
•
The untrusted network specified for the Clean Access Server in the IP form.
•
Any managed subnets you added (see
•
Auto-generated subnets created during DHCP configuration. These entries are identified by the
description “ARP Generated for DHCP.” (see
description “ARP Generated for DHCP.” (see
)
Add ARP Entry
Use the following steps to manually create an ARP entry.
1.
Open the ARP form in the Advanced tab.
Figure 5-12
Create ARP Entry