Cisco ASA 5512-X Cli Configuration Guide

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Cisco ASA Series CLI Configuration Guide
Chapter 1 Information About NAT
DNS and NAT
Because you want inside users to use the mapped address for ftp.cisco.com (2001:DB8::D1A5:C8E1)
you need to configure DNS reply modification for the static translation. This example also includes a
static NAT translation for the DNS server, and a PAT rule for the inside IPv6 hosts.
Figure 1-25 DNS64 Reply Modification Using Outside NAT
ftp.cisco.com
209.165.200.225
IPv4 Internet
IPv6 Net
Static Translation on Inside to:
2001:DB8::D1A5:C8E1
PAT Translation on Outside to:
209.165.200.230
User:
2001:DB8::1
DNS Server
209.165.201.15
Static Translation on Inside to:
2001:DB8::D1A5:C90F
1
2
7
6
5
4
3
DNS Query
ftp.cisco.com?
DNS Reply
209.165.200.225
DNS Reply Modification
209.165.200.225 2001:DB8::D1A5:C8E1
DNS Reply
2001:DB8::D1A5:C8E1
FTP Request
209.165.200.225
Dest Addr. Translation
209.165.200.2252001:DB8::D1A5:C8E1
FTP Request
2001:DB8::D1A5:C8E1
Security Device
333368

Cisco ASA 5512-X Specifications

General

Firewall Throughput	1.2 Gbps
VPN Throughput	200 Mbps
Maximum VPN Peers	250
Integrated IPS	Yes
IPS Throughput	250 Mbps
RAM	4 GB
Power Supply	AC, 100-240V
Security Contexts	2 (Standard), 50 (with Security Contexts license)
Interfaces	6 x Gigabit Ethernet
Dimensions (H x W x D)	1.75 x 17.5 x 14.5 inches
Weight	16 lbs