allows you to capture traffic on the loopback interface. To start
monitoring the loopback interface, select it from the drop-down
list in the toolbar.
packets are the packets sent/received within the same computer,
i.e. self-addressed packets. Typically, there is virtually no
loopback traffic on the standard PC. However, loopback traffic is
widely used by software developers for debugging network-related
applications. Therefore, CommView's loopback capturing
functionality is targeted primarily at this user group.
capture loopback traffic, the packets look exactly as any other
network packets, except that the checksums are not computed. Please
pay attention to the following peculiarities when capturing
||CommView captures loopback
traffic on all of the local IP addresses. This always includes
127.0.0.1/255.0.0.0, but may also include the IP addresses of your
Ethernet adapters, e.g. 192.168.0.1.
||ICMP packets cannot be
captured. Other IP protocols can (TCP, UDP, etc.).
sent/received packets are captured. For example, if a connection
attempt fails because the destination port is closed, you will not
see any SYN / RST packets.
||Sessions are silently
closed; no FIN packets are captured.