Snmp - Draytek VIGOR3300V+ User Manual

Enable Management Port
for P4
Enable packet forwarding
between VLANs
Port VALN ID

4.3.10 SNMP

The Simple Network Management Protocol (SNMP) is an application layer protocol that
facilitates the exchange of management information between network devices. There is a set
of protocols for managing complex networks. SNMP works by sending messages, called
protocol data units (PDUs), to different parts of a network. SNMP enables network
administrators to manage network performance, find and solve network problems, and plan
for network growth.
A SNMP-managed network consists of three key components, managed devices, agents,
and network-management systems (NMSs).
A managed device is a network node that contains an SNMP agent and that resides in a
managed network. Managed devices collect and store management information and make
this information available to NMSs by using SNMP. Managed devices, sometimes called
network elements, can be routers and access servers, switches and bridges, computers hosts,
or printers.
This function is to define a community string name. An agent is a network-management
software module that resides in a managed device. An agent has local knowledge of
management information and translates that information into a form compatible with SNMP.
Vigor3300V+ Series User's Guide
operation for each VLAN in this page for obtaining proper
control. Use the drop down list to choose a tag operation for
each port.
Tagged – All the computers behind that port must support
VLAN and are tagged with certain VLAN groups with
specified ID numbers.
Untagged - All the computers behind that port do not support
VLAN feature.
Note: It is recommended to group computers that do not
support VLAN feature or support VLAN feature but their
Untagged VLAN settings are checked in one port with
untagged. This device will tag proper port VLAN ID for
untagged PC respectively for making them communicating
with the router.
It can help users to communicate with router still even though
configuring the wrong setting in the 802.1Q VLAN tag. The
management port will lock index 4. We recommend that users
enable the management port to fix the fourth VLAN settings
unless users want to use the fourth VLAN and ensure the
settings are correct. You have to set Port VLAN ID for P4
previously before you check this box.
Packets can be transmitted and forwarded among VLAN
groups if this box is checked. In default, it is unchecked.
Type the ID for each port used for identification on VLAN.
When the tag operation for each port (representing for
different computers connected to this router) is marked by
untagged, to avoid conflict occurred, the system will apply the
ID listed in these boxes automatically for each port (P1 to P4)
to ensure proper and correct network operation.
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