Cisco ASA FW replacement Active sand Standby Mode
思科防火墙 更换

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must make sure the cross connection is there.

1. must have written connection for DC to check
2. must make sure the lincense is there show verion
3. Must have a roll back plane.
4. Must communication effectively with DC guys.

show X
Show arp
show ×××-session L2l
sh run nat

Primary A
Gi1/1 to Switch
Gi1/2 to Switch
GI1/8 to Sec B Gi1/8 ( cross connect)
Secondary B

New Primay C
New Secondary D

Step 1.
Move all the connection from B to New Secondary D ( include cross connect)

Step 2.
Failover over the Active to New Secondary D ( in new D failover active)
show failvoer state
Step 3.
Move all the connection from A to new C.
Show failvoer state

Step 3.
Move the Active FW to new C. ( in C failvoer active)

show xlate
show arp
ping host to see if its live
show -session-l2l to check tunnel status.

因为跟换的时候是一台一台更换的。

导致我在更换的时候，
比如 Old Primary 和 New Sec D 的时候， 怎么也不工作， 原来他们之间的
Failover Link 没有连起来

Suppose
Old Primary Failvoer link to New Sec D Failover link.

现实连的是
New Priamary C Failover link to New Sec D failover link.

Note: cross connect = Failvoer link.

是主防火墙 和备用防火墙之间的通信连接

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