Cisco Cisco Email Security Appliance C190 Technical References

- ARPSHOW - Show system ARP cache.

- NDPSHOW - Show system NDP cache.

- SMTPPING - Test a remote SMTP server.

- TCPDUMP - Dump ethernet packets.

[]> flush

Flushing LDAP cache.

Flushing DNS cache.

Flushing system ARP cache.

10.76.69.3 (10.76.69.3) deleted

10.76.69.2 (10.76.69.2) deleted

10.76.69.1 (10.76.69.1) deleted

10.76.69.149 (10.76.69.149) deleted

Flushing system NDP cache.

fe80::250:56ff:feb2:e2d%em2 (fe80::250:56ff:feb2:e2d%em2) deleted

fe80::250:56ff:feb2:e2c%em1 (fe80::250:56ff:feb2:e2c%em1) deleted

fe80::250:56ff:feb2:e2b%em0 (fe80::250:56ff:feb2:e2b%em0) deleted

Network reset complete.

The following example shows diagnostics used to check connectivity to another mail server. You can test 
the mail server by sending a message or pinging the server.

mail.example.com> diagnostic

Choose the operation you want to perform:

- RAID - Disk Verify Utility.

- NETWORK - Network Utilities.

- REPORTING - Reporting Utilities.

- TRACKING - Tracking Utilities.

- RELOAD - Reset configuration to the initial manufacturer values.

[]> network

Choose the operation you want to perform:

- FLUSH - Flush all network related caches.

- ARPSHOW - Show system ARP cache.

- NDPSHOW - Show system NDP cache.

- SMTPPING - Test a remote SMTP server.

- TCPDUMP - Dump ethernet packets.

[]> smtpping

Enter the hostname or IP address of the SMTP server:

[mail.example.com]> mail.com

The domain you entered has MX records.

Would you like to select an MX host to test instead? [Y]> y

Select an MX host to test.

1. mx00.gmx.com

2. mx01.gmx.com

[1]>

Select a network interface to use for the test.

1. Management

2. auto

[2]> 1

Do you want to type in a test message to send?  If not, the connection will be tested but 

no email will be sent. [N]>