Snmp Faqs - DPS Telecom NetGuardian 216T User Manual

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even after I wrote the NVRAM.
A. In order for data port and craft port changes (including changes to the baud rate and word format) to take
effect, the NetGuardian must be rebooted. Whenever you make changes, remember to write them to the
NetGuardian's NVRAM so they will be saved when the unit is rebooted.
Q. How do I get my NetGuardian on the network?
A. Before the NetGuardian will work on your LAN, the unit address (IP address), the subnet mask, and the
default gateway must be set. A sample configuration could look like this:
unit address: 192.168.1.100
subnet mask: 255.255.255.0
Default Gateway: 192.168.1.1
Always remember to save your changes by writing to the NVRAM. Any modifications of the NetGuardian's
IP configuration will also require a reboot.
Q. How do I get my NetGuardian on the WAN?
A. Configure T1 WAN settings in the Web browser's T1 WAN menu. You need to know the NetGuardian's IP
address or domain name if it has been registered with your internal DNS and the subnet mask (see LAN
example above). After T1 WAN settings are provisioned, make sure you're connected to the NetGuardian's
T1 WAN port.
Q. I'm using HyperTerminal to connect to the NetGuardian through the craft port, but the unit won't
accept input when I get to the first level menu.
A. Make sure you turn off all handshaking in HyperTerminal.
Q. I can't change the craft port baud rate.
A. Once you select a higher baud rate, you must set your terminal emulation to that new baud rate and enter the
DPSCFG and press Enter escape sequence. The craft port interprets a break key as an override to 9600 baud.
At slower baud rates, normal keys can appear as a break.
Q. The LAN line LED is green on my NetGuardian, but I can't poll it from my T/MonXM master.
A. Some routers will not forward to an IP address until the MAC address has been registered with the router.
You need to enter the IP address of your T/MonXM system or your gateway in the ping table.
5.2

SNMP FAQs

Q. Which version of SNMP is supported by the SNMP agent on the NetGuardian?
A. SNMP v1 and v2.0C on the NetGuardian 216T.
Q. How do I configure the NetGuardian to send traps to an SNMP manager? Is there a separate MIB for
the NetGuardian? How many SNMP managers can the agent send traps to? And how do I set the IP
address of the SNMP manager and the community string to be used when sending traps?
A. The NetGuardian begins sending traps as soon as the SNMP managers are defined. The NetGuardian MIB is
included on the NetGuardian Resource CD. The MIB should be compiled on your SNMP manager. (Note:
MIB versions may change in the future.) The unit supports a main SNMP manager, which is configured by
entering its IP address in the trap address field of Ethernet Port Setup. You can also configure up to eight
secondary SNMP managers, which are configured by selecting the secondary SNMP managers as pager
recipients. Community strings are configured globally for all SNMP managers. To configure the community
strings, choose System from the Edit menu, and enter appropriate values in the Get, Set, and Trap fields.
Q. Does the NetGuardian support MIB-2 and/or any other standard MIBs?
A. The NetGuardian supports the bulk of MIB-2.
Q. Does the NetGuardian SNMP agent support both NetGuardian and T/MonXM variables?
A. The NetGuardian SNMP agent manages an embedded MIB that supports only the NetGuardian's RTU