ZyXEL Communications ENTERPRISE NETWORK CENTER Manual Download

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Chapter 6 Tool

ENC User’s Guide

138

Net Mask

This field displays the subnet mask of the IP address(es).

Start IP

This field is available if you select IP Range in the Discover Type field. This field
displays the starting IP address of the IP range.

End IP

This field is available if you select IP Range in the Discover Type field. This field
displays the ending IP address of the IP range.

SNMP

SNMP Version

Select the version of the SNMP poll messages the ENC sends in order to communicate
with managed devices. You can select more than one check box if your devices support
different SNMP versions.

SNMP Port

Enter the port number the ENC uses to transmit and receive SNMP messages to/from
managed devices.

Read Community

Type the read-only community string the ENC uses to view information on managed
devices.

User Name

This field is available if you selected v3 in the SNMP Version field.

Enter the user name of the administrator account on the device.

Context Name

This field is available if you selected v3 in the SNMP Version field.

Enter the context name configured in the device that you are looking for.

Authentication

This field is available if you selected v3 in the SNMP Version field.

Select which hash algorithm (MD5 or SHA1) to use to authenticate SNMP packets
transmitted between the ENC and the device. SHA1 is generally considered stronger
than MD5, but it is also slower. Select None if no authentication is required.

Auth. Password

This field is available if you selected MD5 or SHA1 in the Authentication field.

Enter the authentication key, which depends on the authentication algorithm you
selected.

MD5 - a key 16-20 characters long

SHA1 - a key 20 characters long

You can use any alphanumeric characters or ,;|`~!@#$%^&*()_+\{}':./<>=-". If you
want to enter the key in hexadecimal, type “0x” at the beginning of the key. For
example, "0x0123456789ABCDEF" is in hexadecimal format; “0123456789ABCDEF” is in
ASCII format.

Privacy

This field is available if you selected MD5 or SHA1 in the Authentication field.

Select which encryption algorithm to use for SNMP packets transmitted between the ENC
and the device.

None - no encryption key or algorithm

DES - a 56-bit key with the DES encryption algorithm

AES - a 128-bit key with the AES encryption algorithm

Privacy Password

This field is available if you selected DES or AES in the Privacy field.

Enter the encryption key with the length according to the Privacy setting.

Polling

Enable Status
Polling

Select this to have the ENC poll its managed devices periodically to update their status in
the ENC. Clear this to disable it.

Polling Interval

Select how often in minutes the ENC sends a poll message to a managed device.

Enable auto-
remove obsolete
devices

Select this to allow a device to remain offline for the specified number of days before the
ENC removes it from the OTV panel. You can configure the days in the Auto remove
after offline period field. Clear this if you want to disable this feature.

Table 49

Tool > Auto-Discovery (continued)

LABEL

DESCRIPTION