Packet Trace - SonicWALL TELE3 SP Administrator's Manual

2. Enter the IP address of the target device to ping and click Go. The test takes a few seconds
to complete. Once completed, a message showing the results is displayed in the browser
window.
Note: Ping requires an IP address. The SonicWALL DNS Name Lookup tool can be used to
find the IP address of a host.

Packet Trace

The Packet Trace tool tracks the status of a communications stream as it moves from source
to destination. This is a useful tool to determine if a communications stream is being stopped
at the SonicWALL, or is lost on the Internet.
To interpret this tool, it is necessary to understand the three-way handshake that occurs for
every TCP connection. The following displays a typical three-way handshake initiated by a host
on the SonicWALL 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)
The SonicWALL forwards SYN from LAN client to remote host.
3. TCP received on WAN [SYN,ACK]
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