Cisco ASA 5505 - Manual (Page 1859)

82-3
Cisco ASA 5500 Series Configuration Guide using the CLI
Chapter 82 Troubleshooting
Testing Your Configuration
Examples
The following example shows a successful ping from an external host (209.165.201.2) to the ASA
outside interface (209.165.201.1):
hostname(config)# debug icmp trace
Inbound ICMP echo reply (len 32 id 1 seq 256) 209.165.201.1 > 209.165.201.2
Outbound ICMP echo request (len 32 id 1 seq 512) 209.165.201.2 > 209.165.201.1
Inbound ICMP echo reply (len 32 id 1 seq 512) 209.165.201.1 > 209.165.201.2
Outbound ICMP echo request (len 32 id 1 seq 768) 209.165.201.2 > 209.165.201.1
Inbound ICMP echo reply (len 32 id 1 seq 768) 209.165.201.1 > 209.165.201.2
Outbound ICMP echo request (len 32 id 1 seq 1024) 209.165.201.2 > 209.165.201.1
Inbound ICMP echo reply (len 32 id 1 seq 1024) 209.165.201.1 > 209.165.201.2
The output shows the ICMP packet length (32 bytes), the ICMP packet identifier (1), and the ICMP
sequence number (the ICMP sequence number starts at 0, and is incremented each time that a request is
sent).
Pinging ASA Interfaces
To test whether the ASA interfaces are up and running and that the ASA and connected routers are
operating correctly, you can ping the ASA interfaces. To ping the ASA interfaces, perform the following
steps:
Step 1 Draw a diagram of your single-mode ASA or security context that shows the interface names, security
levels, and IP addresses.
Note Although this procedure uses IP addresses, the ping command also supports DNS names and
names that are assigned to a local IP address with the name command.
The diagram should also include any directly connected routers and a host on the other side of the router
from which you will ping the ASA. You will use this information in this procedure and in the procedure
in the
“Passing Traffic Through the ASA” section on page 82-5 . (See Figure 82-1 .)