ZyXEL Communications ENTERPRISE NETWORK CENTER Manual page 138

Chapter 6 Tool
Table 49 Tool > Auto-Discovery (continued)
LABEL
Net Mask
Start IP
End IP
SNMP
SNMP Version
SNMP Port
Read Community
User Name
Context Name
Authentication
Auth. Password
Privacy
Privacy Password
Polling
Enable Status
Polling
Polling Interval
Enable auto-
remove obsolete
devices
138
DESCRIPTION
This field displays the subnet mask of the IP address(es).
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.
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.
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.
Enter the port number the ENC uses to transmit and receive SNMP messages to/from
managed devices.
Type the read-only community string the ENC uses to view information on managed
devices.
This field is available if you selected v3 in the SNMP Version field.
Enter the user name of the administrator account on the device.
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.
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.
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.
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
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.
Select this to have the ENC poll its managed devices periodically to update their status in
the ENC. Clear this to disable it.
Select how often in minutes the ENC sends a poll message to a managed device.
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.
ENC User's Guide