Dell SonicWALL GX250 Manual

SonicWALL Internet Security Appliance Guide Page 771. Select Ping from the Choose a diagnostic tool menu.2. Enter the IP address of the target device to ping and click Go. The test takes a fewseconds to complete. Once completed, a message showing the results is displayedin the browser window.Note: Ping requires an IP address. The SonicWALL DNS Name Lookup tool may beused to find the IP address of a host.Packet TraceThe Packet Trace tool tracks the status of a communications stream as it moves fromsource to destination. This is a useful tool to determine if a communications stream isbeing stopped at the SonicWALL, or is lost on the Internet.To interpret this tool, it is necessary to understand the three-way handshake thatoccurs for every TCP connection. The following displays a typical three-way handshakeinitiated by a host on the SonicWALL's LAN to a remote host on the WAN.1. TCP received on LAN [SYN]From 192.168.168.158 / 1282 (00:a0:4b:05:96:4a)To 204.71.200.74 / 80 (02:00:cf:58:d3:6a)The SonicWALL receives SYN from LAN client.2. TCP sent on WAN [SYN]From 207.88.211.116 / 1937 (00:40:10:0c:01:4e)To 204.71.200.74 / 80 (02:00:cf:58:d3:6a)