Device Management
Device Discovery Protocols
Cisco ISA500 Series Integrated Security Appliances Administration Guide
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DNS Lookup
Use the DNS Lookup page to retrieve the IP address of any server on the Internet.
STEP 1
Click
Device Management > Diagnostic Utilities > DNS Lookup
.
STEP 2
Enter the IP address or domain name that you want to look up in the
IP Address or
Domain Name
field.
STEP 3
Click
Run
to query the server on the Internet. If the host or domain name exists,
you will see a response with the IP address.
STEP 4
Click
Clear
to clean up the querying results.
Packet Capture
Use the Packet Capture page to capture all packets that pass through a selected
interface.
STEP 1
Click
Device Management > Diagnostic Utilities > Packet Capture
.
STEP 2
Choose an interface or a network (such as DEFAULT VLAN) that you want to
capture the packets from the
Network
drop-down list.
NOTE:
Selecting WAN1 or WAN2 (if applicable) means capturing the packets
through a logical interface. Selecting GEx means capturing the packets through a
physical interface. If you choose a VLAN, only inter-VLAN traffic will be captured.
STEP 3
Click
Start
to start capturing the packets, click
Stop
to stop capturing, or click
Save
to save the captured packets.
Device Discovery Protocols
The security appliance supports the following protocols to discover the devices:
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