13-45
Cisco ASA Series Firewall CLI Configuration Guide
Chapter 13 Inspection of Basic Internet Protocols
TFTP Inspection
Example:
hostname(config)# policy-map global_policy
In the default configuration, the global_policy policy map is assigned globally to all interfaces. If you
want to edit the global_policy, enter global_policy as the policy name.
Step 3 Identify the L3/L4 class map you are using for ESMTP inspection.
class name
Example:
hostname(config-pmap)# class inspection_default
To edit the default policy, or to use the special inspection_default class map in a new policy, specify
inspection_default for the name. Otherwise, you are specifying the class you created earlier in this
procedure.
Step 4 Configure ESMTP inspection.
inspect esmtp [esmtp_policy_map]
Where esmtp_policy_map is the optional ESMTP inspection policy map. You need a map only if you
want non-default inspection processing. For information on creating the ESMTP inspection policy map,
see Configure the ESMTP Inspection Service Policy, page 13-44.
Example:
hostname(config-class)# no inspect esmtp
hostname(config-class)# inspect esmtp esmtp-map
Note If you are editing the default global policy (or any in-use policy) to use a different inspection
policy map, you must remove the ESMTP inspection with the no inspect esmtp command, and
then re-add it with the new inspection policy map name.
Step 5 If you are editing an existing service policy (such as the default global policy called global_policy), you
are done. Otherwise, activate the policy map on one or more interfaces.
service-policy policymap_name {global | interface interface_name}
Example:
hostname(config)# service-policy global_policy global
The global keyword applies the policy map to all interfaces, and interface applies the policy to one
interface. Only one global policy is allowed. You can override the global policy on an interface by
applying a service policy to that interface. You can only apply one policy map to each interface.
TFTP Inspection
TFTP inspection is enabled by default.
TFTP, described in RFC 1350, is a simple protocol to read and write files between a TFTP server and
client.
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