Cisco Cisco Packet Data Gateway (PDG) Guia Do Administrador
Troubleshooting
Verifying Network Connectivity ▀
Cisco ASR 5000 System Administration Guide ▄
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Troubleshooting
If no response is received from the target follow these troubleshooting procedures:
Verify that the correct IP address was entered.
Attempt to ping a different device on the same network. If the ping was successful then it is likely that your
system configuration is correct. Verify that the device you are attempting to ping is powered and functioning
properly.
properly.
Verify the port is operational.
Verify that the configuration of the ports and interfaces within the context are correct.
If the configuration is correct and you have access to the device that you’re attempting to ping, ping the system
from that device.
If there is still no response, it is likely that the packets are getting discarded by a network device. Use the
traceroute or traceroute6 and show ip static-route commands discussed in this chapter to further
troubleshoot the issue.
troubleshoot the issue.
Using the traceroute or traceroute6 Command
The traceroute or traceroute6 command collects information on the route data will take to a specified host. This is a
useful troubleshooting command that can be used to identify the source of significant packet delays or packet loss on the
network. This command can also be used to identify bottle necks in the routing of data over the network.
useful troubleshooting command that can be used to identify the source of significant packet delays or packet loss on the
network. This command can also be used to identify bottle necks in the routing of data over the network.
traceroute – IPv4 Syntax
The traceroute command has the following syntax:
traceroute { host_name | host_ipv4_address } [ count packets ] [ df ]
[ maxttl max_ttl ] [ minttl min_ttl ] [ port port_number ] [ size octet_count ]
[ src { src_host_name | src_host_ipv4_address } ] [ timeout seconds ]
[ vrf vrf_nam ]
[ maxttl max_ttl ] [ minttl min_ttl ] [ port port_number ] [ size octet_count ]
[ src { src_host_name | src_host_ipv4_address } ] [ timeout seconds ]
[ vrf vrf_nam ]
For a complete description of the above command, see the Exec Mode Commands chapter of the Command Line
Interface Reference.
Interface Reference.
The following displays a sample output.
traceroute to 192.168.250.1 (192.168.250.1), 30 hops max, 40 byte packets
1 192.168.250.1 (192.168.250.1) 0.446 ms 0.235 ms 0.178 ms
1 192.168.250.1 (192.168.250.1) 0.446 ms 0.235 ms 0.178 ms
traceroute6 – IPv6 Syntax
The traceroute6 command has the following syntax:
traceroute6 { host_name | host_ipv6_address } [ count packets ] [ maxttl max_ttl ]
[ port port_number ] [ size octet_count ] [ src { src_host_name |
src_host_ipv6_address } ] [ timeout seconds ] [ vrf vrf_nam ]
[ port port_number ] [ size octet_count ] [ src { src_host_name |
src_host_ipv6_address } ] [ timeout seconds ] [ vrf vrf_nam ]
For a complete description of the above command, see the Exec Mode Commands chapter of the Command Line
Interface Reference.
Interface Reference.