SNMPv1 Access

To use SNMPv1 an access community is used. Each access community has a community name, a IP name or a host name and an access type. It is possible to defined up to four different access communities.

• The community name: Used for access by a network management station (NMS). The maximum length of a community name is 15 ASCII characters.

• The NMS IP/host name: The IPv4 or IPv6 address, IP address mask, or host name that controls access by NMSs. A host name or a specific IP address (for example, 149.225.12.1) allows access only by the NMS at that location. IP addresses that contain 255 restrict access as follows:

  • 149.225.12.255: Access by NMS on the 149.225.12 segment.

  • 149.225.255.255: Access by NMS on the 149.225 segment.

  • 149.255.255.255: Access by NMS on the 149 segment.

  • 0.0.0.0 (the default setting) which can also be expressed as 255.255.255.255: Access by NMS on any segment.

• The access type: There are four different access types:

  • Read: GETS only, at any time

  • Write: GETS at any time, and SETS when no user is logged onto the UI or command line interface.

  • Write+: GETS and SETS at any time.

  • Disable: No GETS or SETS at any time.

1. Log in to the CLI.

2. To see the configuration options type snmpV1 ?.

   NOTE: In the table [n] is the access community number 1, 2, 3 or 4.

   Setting	Command	Argument	Description
   Help	?		Shows the command help.
   SNMPv1 access	–s	enable | disable	Enables or disables SNMP version 1.
   Community name	–c[n]	<Community Name>	Specify a community name.
   Community access type	–a[n]	read | write | writeplus | disable	Set the access type of a community.
   Community IPv4/IPv6 address or host name	–n[n]	<IP address> | <Host Name>	Specify the IPv4/IPv6 address or the host name of community.

1. Log in to the web interface.

2. Navigate to Configuration > Network > SNMPv1 > Access Control.

3. Click on a community name to configure Community Name, NMS IP/Host Name and Access Type.

4. Click Apply to save any changes.

   NOTE: Reboot the NMC to apply changes. From the web interface select Control > Network > Reset/Reboot for options.