Traceroute Results and Output Summary
Table 72 summarizes the output in the traceroute display. If the device receives no responses from the destination host, review the list after Table 72 for a possible explanation.
Table 72: J-Web Traceroute Results and Output Summary
Field | Description |
|---|---|
hop-number | Number of the hop (router) along the path. |
host | Hostname, if available, or IP address of the router. If the Don't Resolve Addresses check box is selected, the hostname is not displayed. |
ip-address | IP address of the router. |
as-number | AS number of the router. |
time1 | Round-trip time between the sending of the first traceroute packet and the receiving of the corresponding Time Exceeded packet from that particular router. |
time2 | Round-trip time between the sending of the second traceroute packet and the receiving of the corresponding Time Exceeded packet from that particular router. |
time3 | Round-trip time between the sending of the third traceroute packet and the receiving of the corresponding Time Exceeded packet from that particular router. |
If the device does not display the complete path to the destination host, one of the following explanations might apply:
- The host is not operational.
- There are network connectivity problems between the device and the host.
- The host, or a router along the path, might be configured to ignore ICMP traceroute messages.
- The host, or a router along the path, might be configured with a firewall filter that blocks ICMP traceroute requests or ICMP time exceeded responses.
- The value you selected in the Time Exceeded box was less than the number of hops in the path to the host. In this case, the host might reply with an ICMP error message.
For more information about ICMP, see RFC 792, Internet Control Message Protocol.