The admin could send packet inspection through the tools on system to confirm whether the external line quality of NG-UTM and DNS query are normal or not
Currently, there are several tools available for admin to use, including PING, Trace route, DNS query, Port Scan, Wake up, and SNMP. Among them, PING supports two addresses modes: IPV4 and IPV6.
In most cases of network connectivity issues, people usually use the PING command (which is the same for both Windows and Linux) to check if their own network and the other party’s network are operational.
The PING command utilizes the ICMP protocol to send out specific-sized ICMP packets at regular intervals. Is also measure the response time from the other computer to determine if the network connection is functioning properly.
• Ping Setting：
Picture13-1 PING testing tool and output information¶
【Target IP or Domain】：The IPV4/IPV6 button in the menu can be switched for testing.
For IPV4, it is available to input either the IP address or the domain name under test, for example, 168.95.1.1 or www.hinet.net.
【Package Size】：The default size of ICMP protocol packets sent out each time is 32 bytes. The configurable range for packet size is from 1 to 9999 bytes.
【Count】：The default number of test packet sent out is 4 times. The configurable range for the number of packets is from 1 to 9999.
【Timeout】：The ICMP response timeout interval, which determines when a connection is considered time out, is set to 1second by default. The configurable range for this testing setting is from 1 to 9999.
【Using Interface & IP】：Select the interface and the source IP address to send out the test packet.
【Assign Gateway】：Specify which gateway to use for sending the test packets from this interface’s address.
Trace route could reveal packet from the source to the destination network router’s IP address. When the Internet connection is down, besides using PING to check,
if you want to find out which routers or where exactly the connection is failing along the route to the destination, you would use the tool Traceroute. Currently, it only supports IPV4 addresses.
• Traceroute Setting：
Picture13-2 Tracer route testing tool and output information¶
【Target IP or Domain】：Input either the IP address or the domain name to be tested, for example: 168.95.1.1 or www.hinet.net。
【Package Size】：The default number of ICMP/UDP/TCP protocol packets sent each time is 40 Bytes, with a configurable range from 40 ~9999.
【Max. Next Hop】：The maximum number of routes that can be traced, the default number is 30. This range can be adjusted within a range of 1 to 255 routes.
【Wait Time】：The timeout interval for waiting for responses, if the response time exceeds this interval, it will be considered to disconnection. The default is 2 seconds, within a range of 2 to 9999.
【Tracing Methods】：Which communication protocols, ICMP/UDP/TCP, to use to send detection packets, the default choice is ICMP.
【Source Interface】：Select the interface through which to send the test packet and the IP address to carry it out.
NG-UTM could execute Wake Up tasks for remote computers by entering the remote computer’s MAC address. Upon confirmation, the system automatically sends Wake Up packet to the remote computer.
NG-UTM provides an automatic packet capture tool that records packets. After capturing packets, admin could view and download them from the “Completed List”
It is convenient for admin to analyze the packets while searching internet problems
【Enable】：If enable the packet capture function or not.
【Time Range】：Specify the time range for packet capture
【Interface】：Which Zone does the network packet capture interface belong to
【Protocol】：Capture all packets or specify only TCP, UDP, ICMP, ARP types
【Filter Condition】：2 modes available. In the basic mode, you could enter IP address or ranges, while in the advanced mode, you could enter the complete tcpdump command.
【pcap File Size (MB)】：The size of each recorded file ranges from 1 to 10MB.
【pcap File Num】：The total number of pcap File Num, setting range is from 1-100, ensuring to consider available storage space.
Based on the maximum calculation, 10MB * 100 = 1000MB = 1GB. The system must have 1GB of storage space available for storing captured packets. If multiple schedules are set to capture packets simultaneously, it’s essential to calculate the available space accordingly.
【pcap Length】：The maximum length of each packet captured is typically set to the standard network MTU, which is 1500 bytes.
Successfully captured network packets will be displayed in this list, click button to check detailed information and download this file to operator’s computer.
to look up the introduction of OID :
under the list to create a new schedule:
button to check detailed information and download this file to operator’s computer.
