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cluster
cluster-interface bridge 1
unit 1
mac-address cc:9d:a2:71:83:78
exit
unit 2
mac-address cc:9d:a2:71:82:38
exit
enable
exit
hostname ESR-1 unit 1
hostname ESR-2 unit 2
security zone SYNC
exit
security zone WAN
exit
security zone LAN
exit
bridge 1
vlan 1
security-zone SYNC
ip address 198.51.100.254/24 unit 1
ip address 198.51.100.253/24 unit 2
vrrp id 1
vrrp ip 198.51.100.1/24
vrrp group 1
vrrp authentication key ascii-text encrypted 88B11079B51D
vrrp authentication algorithm md5
vrrp
enable
exit
interface gigabitethernet 1/0/1
mode switchport
spanning-tree disable
exit
interface gigabitethernet 1/0/2
security-zone WAN
ip address 128.66.0.2/30
vrrp id 3
vrrp ip 203.0.113.2/30
vrrp group 1
vrrp
exit
interface gigabitethernet 1/0/3
security-zone LAN
ip address 192.0.2.254/24
vrrp id 2
vrrp ip 192.0.2.1/24
vrrp group 1
vrrp
exit
interface gigabitethernet 2/0/1
mode switchport
spanning-tree disable
exit
interface gigabitethernet 2/0/2
security-zone WAN
ip address 128.66.0.1/30
vrrp id 3
vrrp ip 203.0.113.2/30
vrrp group 1
vrrp
exit
interface gigabitethernet 2/0/3
security-zone LAN
ip address 192.0.2.253/24
vrrp id 2
vrrp ip 192.0.2.1/24
vrrp group 1
vrrp
exit
security zone-pair SYNC self
rule 1
action permit
match protocol icmp
enable
exit
rule 2
action permit
match protocol vrrp
enable
exit
rule 3
action permit
match protocol ah
enable
exit
exit
security zone-pair WAN self
rule 1
action permit
match protocol vrrp
enable
exit
exit
security zone-pair LAN self
rule 1
action permit
match protocol vrrp
enable
exit
exit |
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Решение:
Создадим профиль ISAKMP-портов, необходимых для работы протокола IPsec, включающий разрешение UDP-пакетов на порту 500 (а также на порту 4500 для поддержки NAT-T при необходимости):
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ESR-1(config)# security zone IPSEC ESR-1(config-security-zone)# exit ESR-1(config)# tunnel vti 1 ESR-1(config-vti)# security-zone IPSEC ESR-1(config-vti)# local address 203.0.113.2 ESR-1(config-vti)# remote address 203.0.113.6 ESR-1(config-vti)# ip address 128.66.0.6/30 ESR-1(config-vti)# enable ESR-1(config-vti)# exit |
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Добавим правило, разрешающее прохождение трафика между зонами LAN и IPSEC:
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