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Cisco ASDM User Guide
OL-16647-01
Chapter 24 Configuring Application Layer Protocol Inspection
Inspect Map Field Descriptions
Add/Edit DNS Policy Map (Security Level)
The Add/Edit DNS Policy Map pane lets you configure the security level and additional settings for DNS
application inspection maps.
Fields
Name—When adding a DNS map, enter the name of the DNS map. When editing a DNS map, the
name of the previously configured DNS map is shown.
Description—Enter the description of the DNS map, up to 200 characters in length.
Security Level—Select the security level (high, medium, or low).
Low—Default.
DNS Guard: enabled
NAT rewrite: enabled
Protocol enforcement: enabled
ID randomization: disabled
Message length check: enabled
Message length maximum: 512
Mismatch rate logging: disabled
TSIG resource record: not enforced
Medium
DNS Guard: enabled
NAT rewrite: enabled
Protocol enforcement: enabled
ID randomization: enabled
Message length check: enabled
Message length maximum: 512
Mismatch rate logging: enabled
TSIG resource record: not enforced
High
DNS Guard: enabled
NAT rewrite: enabled
Protocol enforcement: enabled
ID randomization: enabled
Firewall Mode Security Context
Routed Transparent Single
Multiple
Context System
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