本文档介绍更改安全防火墙威胁防御(FTD)管理器访问数据接口的步骤。
本文档中的信息都是基于特定实验室环境中的设备编写的。本文档中使用的所有设备最初均采用原始(默认)配置。如果您的网络处于活动状态,请确保您了解所有命令的潜在影响。
本文档中的信息基于以下软件和硬件版本:
1. FMC使用主用和备用IP地址10.62.113.125和10.62.113.126,通过名为nameif outside1的数据接口Ethernet1/1管理高可用性(HA)的FTD:

FTD CLISH验证:
> show network management-data-interface
Physical Interface Name of the Interface
Ethernet1/1 outside1
> show network
===============[ System Information ]===============
Hostname : CSF4215-3
..
DNS from router : enabled
Management port : 8305
IPv4 Default route
Gateway : data-interfaces
…
======[ System Information - Data Interfaces ]======
DNS Servers : 192.0.2.100
Interfaces : Ethernet1/1
==================[ Ethernet1/1 ]===================
State : Enabled
Link : Up
Name : outside1
MTU : 1500
MAC Address : 40:F4:9F:3D:5A:0E
----------------------[ IPv4 ]----------------------
Configuration : Manual
Address : 10.62.113.125
Netmask : 255.255.255.0
Gateway : 10.62.113.1
…
2.sftunnel连接在FTD HA单元和FMC之间建立:
> sftunnel-status-brief
PEER:fmc.example.org
SFTunnel Status:-
Channel A: Connected
Channel B: Connected
Peer channel Channel-A is valid type (CONTROL), using 'tap_nlp', connected to '198.51.100.23' via '169.254.1.3'
Peer channel Channel-B is valid type (EVENT), using 'tap_nlp', connected to '198.51.100.23' via '169.254.1.3'
Registration: Completed.
IPv4 Connection to peer 'fmc.example.org' Start Time: Fri Jul 17 08:22:31 2026 UTC
Heartbeat Send Time: Fri Jul 17 08:52:42 2026 UTC
Heartbeat Received Time: Fri Jul 17 08:53:03 2026 UTC
Last disconnect time : Fri Jul 17 08:22:16 2026 UTC
Last disconnect reason : Process shutdown due to stop request from PM
3. FTD依赖DNS解析来连接到FMC。管理器基于完全限定域名(FQDN)进行配置:
> show managers
Type : Manager
Host : fmc.example.org
Display name : fmc.example.org
Version : 10.0.1 (Build 1)
Identifier : 6d86efc4-c095-11f0-9244-48f1a7894b18
Registration : Completed
Management type : Configuration and analytics
> show network
===============[ System Information ]===============
Hostname : KSEC-FPR-4215-3
Domains : example.org
DNS Servers : 192.0.2.100
DNS from router : enabled
Management port : 8305
IPv4 Default route
Gateway : data-interfaces
…
DNS服务器可通过outside1接口访问。
4.sftunnel连接通过Lina引擎建立:
> show conn all port 8305
26 in use, 32 most used
Inspect Snort:
preserve-connection: 0 enabled, 0 in effect, 0 most enabled, 0 most in effect
TCP nlp_int_tap 10.62.113.125(169.254.1.3):8305 outside1 198.51.100.23:45647, idle 0:00:03, bytes 2129062, flags UIO
TCP nlp_int_tap 10.62.113.125(169.254.1.3):37141 outside1 198.51.100.23:8305, idle 0:00:04, bytes 148581, flags UxIO
目标是将管理器访问从当前的outside1移到目标outside2接口。主用和备用outside2 IP地址分别为10.62.114.51/24和10.62.114.52/24。
请注意,FTD版本7.7.0或更高版本支持冗余管理器访问数据接口,允许配置和部署多个管理器访问接口。低于7.7.0的版本不支持此功能。
因此,会跳过特定步骤或包含不同的操作。

请注意,低于7.7.0的FTD版本不支持冗余管理器访问数据接口。尝试配置第二个Manager访问接口会导致以下错误消息:

对于低于7.7.0的FTD版本,请确保跳过步骤7和步骤8。
7.部署策略并验证FTD CLISH上的设置。在本示例中,名称为outside2的Ethernet1/2接口的IP地址分别为10.62.114.51和10.62.114.52:
> show ip
System IP Addresses:
Interface Name IP address Subnet mask Method
Ethernet1/1 outside1 10.62.113.125 255.255.255.0 manual <- source interface
Ethernet1/2 outside2 10.62.114.51 255.255.255.0 manual <- target interface
Ethernet1/4 fover 10.9.0.21 255.255.255.0 unset
outside2接口已添加到sftunnel配置中:
> show running-config sftunnel
sftunnel interface outside2 <- target interface
sftunnel interface outside1 <- source interface
sftunnel port 8305
sftunnel route-map FMC_GEN_19283746_RBD_DUAL_WAN_RMAP_91827346
虽然网络地址转换(NAT)表中安装了其他规则,但使用outside1接口的规则:
> show nat detail
Manual NAT Policies Implicit (Section 0)
1 (nlp_int_tap) to (outside1) source static nlp_server__sftunnel_0.0.0.0_intf5 interface destination static 0_0.0.0.0_5 0_0.0.0.0_5 service tcp 8305 8305
translate_hits = 1448, untranslate_hits = 1448
Source - Origin: 169.254.1.3/32, Translated: 10.62.113.125/24
Destination - Origin: 0.0.0.0/0, Translated: 0.0.0.0/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
2 (nlp_int_tap) to (outside2) source static nlp_server__sftunnel_0.0.0.0_intf6 interface destination static 0_0.0.0.0_9 0_0.0.0.0_9 service tcp 8305 8305
translate_hits = 0, untranslate_hits = 0
Source - Origin: 169.254.1.3/32, Translated: 10.62.114.51/24
Destination - Origin: 0.0.0.0/0, Translated: 0.0.0.0/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
3 (nlp_int_tap) to (outside1) source static nlp_server__sftunnel_::_intf5 interface ipv6 destination static 0_::_6 0_::_6 service tcp 8305 8305
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
Destination - Origin: ::/0, Translated: ::/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
4 (nlp_int_tap) to (outside2) source static nlp_server__sftunnel_::_intf6 interface ipv6 destination static 0_::_10 0_::_10 service tcp 8305 8305
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
Destination - Origin: ::/0, Translated: ::/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
5 (nlp_int_tap) to (outside1) source dynamic nlp_client_0_intf5 interface
translate_hits = 653, untranslate_hits = 0
Source - Origin: 169.254.1.3/32, Translated: 10.62.113.125/24
6 (nlp_int_tap) to (outside2) source dynamic nlp_client_0_intf6 interface
translate_hits = 0, untranslate_hits = 0
Source - Origin: 169.254.1.3/32, Translated: 10.62.114.51/24
7 (nlp_int_tap) to (outside1) source dynamic nlp_client_0_ipv6_intf5 interface ipv6
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
8 (nlp_int_tap) to (outside2) source dynamic nlp_client_0_ipv6_intf6 interface ipv6
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
8.检验高可用性状态和接口监控:
> show monitor-interface
This host: Primary - Active
Interface management (203.0.113.130): Normal (Monitored)
Interface outside1 (10.62.113.125): Normal (Monitored)
Interface outside2 (10.62.114.51): Normal (Monitored)
Other host: Secondary - Standby Ready
Interface management (203.0.113.131): Normal (Monitored)
Interface outside1 (10.62.113.126): Normal (Monitored)
Interface outside2 (10.62.114.52): Normal (Monitored)
9.如果计划通过outside2接口管理FTD,请确保允许访问平台设置的SSH Access部分。
10.进行必要的更改,以允许通过目标接口连接到域名服务器(DNS)和FMC:
在这种情况下,需要将IP 10.62.114.1用作目标接口上的默认网关。使用Internet控制消息协议(ICMP)可到达下一跳IP地址:
> ping 10.62.114.1
Please use 'CTRL+C' to cancel/abort...
Sending 5, 100-byte ICMP Echos to 10.62.114.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/10 ms
如果ICMP在传输路径或下一跳中被管理性阻止,请确保下一跳的介质访问控制(MAC)地址在show arp命令的输出中可见并且有效:
> show arp
fover 10.9.0.22 4c01.f7e9.e111 13275
outside1 10.62.113.1 c02c.1782.2cbf 1
outside1 10.62.113.126 4c01.f7e9.e10e 5453
outside2 10.62.114.1 c02c.1782.2cbf 0
outside2 10.62.114.52 4c01.f7e9.e10f 5453
11.根据FTD版本执行以下步骤:
12.部署策略。
13.验证FTD CLISH:
> show route 0.0.0.0
Routing entry for 0.0.0.0 0.0.0.0, supernet
Known via "static", distance 1, metric 0, candidate default path
Routing Descriptor Blocks:
* 10.62.114.1, via outside2 <- default route over outside2
Route metric is 0, traffic share count is 1
> show running-config sftunnel
sftunnel interface outside2 <- sftunnel is enabled only over outside2
sftunnel port 8305
> show nat detail
Manual NAT Policies Implicit (Section 0)
1 (nlp_int_tap) to (outside2) source static nlp_server__sftunnel_0.0.0.0_intf6 interface destination static 0_0.0.0.0_9 0_0.0.0.0_9 service tcp 8305 8305
translate_hits = 3, untranslate_hits = 3
Source - Origin: 169.254.1.3/32, Translated: 10.62.114.51/24
Destination - Origin: 0.0.0.0/0, Translated: 0.0.0.0/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
2 (nlp_int_tap) to (outside2) source static nlp_server__sftunnel_::_intf6 interface ipv6 destination static 0_::_10 0_::_10 service tcp 8305 8305
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
Destination - Origin: ::/0, Translated: ::/0
Service - Protocol: tcp Real: 8305 Mapped: 8305
3 (nlp_int_tap) to (outside2) source dynamic nlp_client_0_intf6 interface
translate_hits = 407, untranslate_hits = 0
Source - Origin: 169.254.1.3/32, Translated: 10.62.114.51/24
4 (nlp_int_tap) to (outside2) source dynamic nlp_client_0_ipv6_intf6 interface ipv6
translate_hits = 0, untranslate_hits = 0
Source - Origin: fd00:0:0:1::3/128, Translated:
> show conn all port 8305
31 in use, 42 most used
Inspect Snort:
preserve-connection: 0 enabled, 0 in effect, 0 most enabled, 0 most in effect
TCP nlp_int_tap 10.62.114.51(169.254.1.3):56853 outside2 198.51.100.23:8305, idle 0:00:06, bytes 33008, flags UxIO <- connectivity over outside2
TCP nlp_int_tap 10.62.114.51(169.254.1.3):32905 outside2 198.51.100.23:8305, idle 0:00:00, bytes 1595942, flags UxIO <- connectivity over outside2
14.如果需要更改“show network” CLISH命令输出中的DNS服务器,请配置新的DNS服务器:
> configure network dns servers 192.0.2.184
15.在FMC上,将FTD管理IP地址更改为outside2 IP地址,然后使用滑块禁用并重新启用连接。对HA中的两台设备重复此步骤:

16.检验所有FTD上的sftunnel连接:
> sftunnel-status-brief
PEER:198.51.100.23
SFTunnel Status:-
Channel A: Connected
Channel B: Connected
Peer channel Channel-A is valid type (CONTROL), using 'tap_nlp', connected to '198.51.100.23' via '169.254.1.3'
Peer channel Channel-B is valid type (EVENT), using 'tap_nlp', connected to '198.51.100.23' via '169.254.1.3'
Registration: Completed.
IPv4 Connection to peer '198.51.100.23' Start Time: Thu Jul 16 16:37:14 2026 UTC
Heartbeat Send Time: Thu Jul 16 16:38:13 2026 UTC
Heartbeat Received Time: Thu Jul 16 16:39:13 2026 UTC
Last disconnect time : Thu Jul 16 16:37:11 2026 UTC
Last disconnect reason : Both control and event channel connections with peer went down
> show conn all port 8305
32 in use, 42 most used
Inspect Snort:
preserve-connection: 0 enabled, 0 in effect, 0 most enabled, 0 most in effect
TCP nlp_int_tap 10.62.114.51(169.254.1.3):8305 outside2 198.51.100.23:36383, idle 0:00:00, bytes 235757, flags UIO <- new connection over different source port
TCP nlp_int_tap 10.62.114.51(169.254.1.3):8305 outside2 198.51.100.23:50963, idle 0:00:01, bytes 12319, flags UIO <- new connection over different source port
17.如果需要更改平台设置中的DNS服务器,请进行相应的配置更改并部署策略。
使用以下命令进行验证:
要排除管理连接故障,请参阅官方指南中的排除管理连接故障部分。
| 版本 | 发布日期 | 备注 |
|---|---|---|
1.0 |
07-Aug-2026
|
初始版本 |