802.1X; Determining Eth0 And Eth1 - Novell ZENWORKS NETWORK ACCESS CONTROL 5.0 - INSTALLATION GUIDE 09-22-2008 Installation Manual

1.4.3 802.1X

802.1X-enabled Novell ZENworks Network Access Control installations require one NIC where the
MS and ES are installed on the same server (see
are installed on different servers. In 802.1X mode, eth1 on Novell ZENworks Network Access
Control is used to discover endpoints on the network. To discover endpoints on the local network,
eth1 can simply be plugged into a port on that subnet because it receives broadcast traffic. To
discover endpoints on other networks, eth1 must be connected to a mirrored port or a port that is
part of a tagged VLAN trunk to detect traffic from endpoints on these other networks. Usually,
mirroring the ports in which the DNS and DHCP server resides detects new endpoints sufficiently.
Figure 1-11
TIP: It is strongly recommended that you use the Intel NIC cards. If you use a different NIC card,
you might be unable to connect, or experience unpredictable results and availability.

1.4.4 Determining eth0 and eth1

To determine which interface is eth0 and which is eth1 using ethtool:
1 After installing Novell ZENworks Network Access Control, plug an Ethernet cable into only
one of the interfaces.
2 Log into the Novell ZENworks Network Access Control MS as root and enter one of the
following commands:
2a ethtool eth0
2b ethtool -p ethn x
Where:
n is the number of the Ethernet interface, for example 0
18 Novell ZENworks Network Access Control Installation Guide
Single-server Installation, Ethernet Card Installation, 802.1X
Figure 1-11), and two NICs where the MS and ES