Nếu mà không phải mở port nào mà vẫn backup được chắc mình chẳng phải hỏi làm gì. Mình thì đã backup được nhưng trên switch core mình phải dùng đến lệnh này"Permit ip host 10.224.41.40 any" thì sẽ backup được, dùng access-list thì phải mở những port nào.
Đây là cấu hình switch core của công ty mình, phần access-list thì mình không đưa lên.
!
interface Port-channel1
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/0/1
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/0/2
description Link to 81.41
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/3
description Link to 81.30
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/4
description VN-BAK-81.28
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/5
description Link to 81.24
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/6
description Link to 81.29
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/7
description Link to 81.33
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/8
description Link to 81.53
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/9
description Link to 81.52
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/10
description Link to 81.31
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/11
description Link to 81.51
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/12
description DB-10.224.81.26
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/13
description Link to 81.46
switchport access vlan 2
!
interface GigabitEthernet1/0/14
description Link to 81.34
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/15
description Link to 81.39
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/16
description Link to 81.35
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/17
description Link to 81.37
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/18
description Link to 81.36
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/19
description Link to 81.40
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/20
description link TEVIRUS 81.50
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/21
switchport access vlan 2
shutdown
!
interface GigabitEthernet1/0/22
description link 10.224.81.38
switchport access vlan 2
switchport mode access
!
interface GigabitEthernet1/0/23
description LINK ASA5520-B05-1F-TE-8
switchport mode access
!
interface GigabitEthernet1/0/24
description LINK 10.224.26.1-G1/0/2
no switchport
ip address 10.224.27.45 255.255.255.
ip access-group VNCMB in
!
interface GigabitEthernet1/0/25
description Link to 80.2
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
!
interface GigabitEthernet1/0/26
description Link to 80.2
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
!
interface GigabitEthernet1/0/27
description Link to 80.25
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/0/28
description Link to 80.27
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface Vlan1
ip address 10.224.80.1 255.255.255.0
!
interface Vlan2
description VG-SFC-SW
ip address 10.224.81.1 255.255.255.1
!
interface Vlan3
ip address 10.224.82.1 255.255.254.0
ip helper-address 10.224.81.23
!
interface Vlan4
ip address 10.224.84.1 255.255.254.0
ip helper-address 10.224.81.23
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.224.27.46
ip route 138.101.0.0 255.255.248.0 10
ip http server
!
ip access-list standard admin
permit 10.167.196.118
permit 10.224.41.113
permit 10.224.41.40
permit 10.224.41.46
!
ip access-list extended VNCMB
permit icmp any any
permit tcp any any eq telnet
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