HP Vm200 User Manual

Configuring network settings and VLANs
Discovery protocols
6-7
Discovery protocols
The V-M200 supports the Link Layer Discovery Protocol (LLDP) and the Cisco Discovery 
Protocol (CDP). These protocols provide a mechanism for the V-M200 to exchange 
information about its identity, capabilities, and interconnection with other devices on the 
network.
Information gathered via LLDP and CDP is stored in the V-M200 in a management 
information database (MIB) and can be retrieved with the simple network...

Configuring network settings and VLANs
Discovery protocols
6-8
LLDP operates at layer 2 and requires an LLDP agent to be active on each network interface 
that will send and receive LLDP advertisements. LLDP advertisements can contain a variable 
number of TLV (type, length, value) information elements. Each TLV describes a single 
attribute of a device.
When an LLDP agent receives information from another device, it stores the information 
locally in a special LLDP MIB (management information base)....

Configuring network settings and VLANs
Bridge spanning tree protocol
6-9
Transmit interval = 30 seconds. The interval at which local LLDP information is 
updated and TLVs are sent to neighboring network devices.
Multiplier = 5 seconds. The value of Multiplier is multiplied by the Transmit interval to 
define Time to live. 
Time to live = 150 seconds. Length of time that neighbors consider LLDP information 
sent by this agent to be valid. Time to live is calculated by multiplying Transmit interval 
by...

Configuring network settings and VLANs
DNS server configuration
6-10
Spanning tree can be enabled for:
Untagged ports: Applies to all untagged traffic on the Ethernet port and active WDS 
links.
VLAN ports: Applies to any traffic that has a VLAN assigned to it. VLANs can be assigned 
by setting the Ethernet VLAN option in a wireless community, or by setting a user-defined 
VLAN via RADIUS attributes. 
Priority 
Sets the priority of the V-M200 within the spanning tree network. Generally, the bridge with...

Configuring network settings and VLANs
DNS server configuration
6-11
If DHCP IP addressing is being used, the following page is displayed. It shows the servers 
that have been dynamically assigned by the DHCP server. To manually assign your own 
DNS servers, select the Override dynamically assigned DNS option and then specify 
up to three DNS servers.
DNS servers
Server 1: Specify the IP address of the primary DNS server for the V-M200 to use. 
Server 2: Specify the IP address of the secondary DNS...

Configuring network settings and VLANs
DNS server configuration
6-12
DNS switch on server failure 
This setting controls how the V-M200 switches between the primary and secondary DNS 
servers. 
When enabled, the V-M200 switches servers if the current server replies with a DNS 
server failure message. 
When disabled, the V-M200 switches servers if the current server does not reply to a DNS 
request. 
DNS switch over 
This setting controls how the V-M200 switches back to the primary DNS server after it...

Chapter 7: Authentication services
7
Authentication services
Contents
Using a third-party RADIUS server ............................................................................ 7-2
Defining a RADIUS client profile on the V-M200 ............................................... 7-2
Configuring user accounts on a RADIUS server ............................................... 7-5
Global 802.1X settings ............................................................................................... 7-11...

Authentication services
Using a third-party RADIUS server
7-2
Using a third-party RADIUS server
The V-M200 can use third-party RADIUS servers to perform a number of authentication and 
configuration tasks, including the tasks shown in the table below. 
Defining a RADIUS client profile on the V-M200
The V-M200 enables you to define a maximum of 16 RADIUS profiles. Each profile defines the 
settings for a RADIUS client connection. To support a client connection, you must create a 
client account on the...

Authentication services
Using a third-party RADIUS server
7-3
2.Select Add New Profile. The Add/Edit RADIUS profile page opens.
3.Configure the profile settings as described in the following section.
4.Select Save.
Configuration settings
Profile name
Specify a name to identify the profile. 
Settings
Authentication port: Specify a port on the RADIUS server to use for authentication. By 
default RADIUS servers use port 1812.
Accounting port: Specify a port on the RADIUS server to use for accounting. By...

Authentication services
Using a third-party RADIUS server
7-4
Retry interval: Specify the number of seconds that the RADIUS server waits before 
access and accounting requests time out. If the server does not receive a reply within this 
interval, the V-M200 switches between the primary and secondary RADIUS servers, if a 
secondary server is defined. A reply that is received after the retry interval expires is 
ignored.
Retry interval applies to access and accounting requests that are generated by the...