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示例：在两个 vSRX 虚拟防火墙实例之间配置 IPsec VPN
此示例说明如何在 Microsoft Azure 中的两个 vSRX 虚拟防火墙实例之间配置 IPsec VPN。
准备工作
确保已在 Microsoft Azure 虚拟网络中安装并启动 vSRX 虚拟防火墙实例。
有关更多信息，请参阅 SRX 站点到站点 VPN 配置生成器 以及如何 对已关闭或非活动的 VPN 隧道进行故障排除 。
概述
可以使用 IPsec VPN 通过两个 vSRX 虚拟防火墙实例保护 Microsoft Azure 中两个 VNET 之间的流量。
vSRX 虚拟防火墙 IPsec VPN 配置
vSRX1 VPN 配置
分步过程
要在 vSRX1 上配置 IPsec VPN，请执行以下作：
在配置编辑模式下登录到 vSRX1（请参阅 使用 CLI 配置 vSRX）。
设置 vSRX1 接口的 IP 地址。
set interfaces ge-0/0/0 unit 0 family inet address 10.0.0.10/24 set interfaces ge-0/0/1 unit 0 family inet address 10.10.10.10/24 set interfaces st0 unit 1 family inet address 10.0.250.10/24
设置不信任安全区域。
set security zones security-zone untrust screen untrust-screen set security zones security-zone untrust host-inbound-traffic system-services ike set security zones security-zone untrust interfaces ge-0/0/0.0 set security zones security-zone untrust interfaces st0.1
设置信任安全区域。
set security zones trust host-inbound-traffic system-services https set security zones trust host-inbound-traffic system-services ssh set security zones trust host-inbound-traffic system-services ping set security security-zone trust interfaces ge-0/0/1.0
配置 IKE。
set security ike proposal ike-phase1-proposalA authentication-method pre-shared-keys set security ike proposal ike-phase1-proposalA dh-group group2 set security ike proposal ike-phase1-proposalA authentication-algorithm sha-256 set security ike proposal ike-phase1-proposalA encryption-algorithm aes-256-cbc set security ike proposal ike-phase1-proposalA lifetime-seconds 1800 set security ike policy ike-phase1-policyA mode aggressive set security ike policy ike-phase1-policyA proposals ike-phase1-proposalA set security ike policy ike-phase1-policyA pre-shared-key ascii-text <preshared-key> set security ike gateway gw-siteB ike-policy ike-phase1-policyA set security ike gateway gw-siteB address 198.51.100.10 set security ike gateway gw-siteB local-identity user-at-hostname "source@example.net" set security ike gateway gw-siteB remote-identity user-at-hostname "dest@example.net" set security ike gateway gw-siteB external-interface ge-0/0/0.0
注意：请务必在此示例中替换
198.51.100.10为正确的公共 IP 地址。配置 IPsec。
set security ipsec proposal ipsec-proposalA protocol esp set security ipsec proposal ipsec-proposalA authentication-algorithm hmac-sha1-96 set security ipsec proposal ipsec-proposalA encryption-algorithm aes-256-cbc set security ipsec policy ipsec-policy-siteB proposals ipsec-proposalA set security ipsec vpn ike-vpn-siteB bind-interface st0.1 set security ipsec vpn ike-vpn-siteB ike gateway gw-siteB set security ipsec vpn ike-vpn-siteB ike ipsec-policy ike-phase1-policyA set security ipsec vpn ike-vpn-siteB establish-tunnels immediately
配置路由。
set routing-instances siteA-vr1 instance-type virtual-router set routing-instances siteA-vr1 interface ge-0/0/0.0 set routing-instances siteA-vr1 interface ge-0/0/1.0 set routing-instances siteA-vr1 interface st0.1 set routing-instances siteA-vr1 routing-options static route 0.0.0.0/0 next-hop 10.0.0.1 set routing-instances siteA-vr1 routing-options static route 10.20.20.0/24 next-hop st0.1 commit
vSRX2 VPN 配置
分步过程
要在 vSRX2 上配置 IPsec VPN，请执行以下作：
在配置编辑模式下登录到 vSRX2（请参阅 使用 CLI 配置 vSRX。
设置 vSRX2 接口的 IP 地址。
set interfaces ge-0/0/0 unit 0 family inet address 10.1.0.10/24 set interfaces ge-0/0/1 unit 0 family inet address 10.20.20.10/24 set interfaces st0 unit 1 family inet address 10.0.250.20/24
设置不信任安全区域。
set security zones security-zone untrust screen untrust-screen set security zones security-zone untrust host-inbound-traffic system-services ike set security zones security-zone untrust interfaces ge-0/0/0.0 set security zones security-zone untrust interfaces st0.1
设置信任安全区域。
set security zones security-zone trust host-inbound-traffic system-services https set security zones security-zone trust host-inbound-traffic system-services ssh set security zones security-zone trust host-inbound-traffic system-services ping set security zones security-zone trust interfaces ge-0/0/1.0
配置 IKE。
set security ike proposal ike-phase1-proposalA authentication-method pre-shared-keys set security ike proposal ike-phase1-proposalA dh-group group2 set security ike proposal ike-phase1-proposalA authentication-algorithm sha-256 set security ike proposal ike-phase1-proposalA encryption-algorithm aes-256-cbc set security ike proposal ike-phase1-proposalA lifetime-seconds 1800 set security ike policy ike-phase1-policyA mode aggressive set security ike policy ike-phase1-policyA proposals ike-phase1-proposalA set security ike policy ike-phase1-policyA pre-shared-key ascii-text preshared-key set security ike gateway gw-siteB ike-policy ike-phase1-policyA set security ike gateway gw-siteB address 203.0.113.10 set security ike gateway gw-siteB local-identity user-at-hostname "dest@example.net" set security ike gateway gw-siteB remote-identity user-at-hostname "source@example.net" set security ike gateway gw-siteB external-interface ge-0/0/0.0
注意：请务必在此示例中替换
203.0.113.10为正确的公共 IP 地址。另请注意，SiteB 本地身份和远程身份应与 SiteA 本地身份和远程身份形成对比。配置 IPsec。
set security ipsec proposal ipsec-proposalA protocol esp set security ipsec proposal ipsec-proposalA authentication-algorithm hmac-sha1-96 set security ipsec proposal ipsec-proposalA encryption-algorithm aes-256-cbc set security ipsec policy ipsec-policy-siteB proposals ipsec-proposalA set security ipsec vpn ike-vpn-siteB bind-interface st0.1 set security ipsec vpn ike-vpn-siteB ike gateway gw-siteB set security ipsec vpn ike-vpn-siteB ike ipsec-policy ike-phase1-policyA set security ipsec vpn ike-vpn-siteB establish-tunnels immediately
配置路由。
set routing-instances siteA-vr1 instance-type virtual-router set routing-instances siteA-vr1 interface ge-0/0/0.0 set routing-instances siteA-vr1 interface ge-0/0/1.0 set routing-instances siteA-vr1 interface st0.1 set routing-instances siteA-vr1 routing-options static route 0.0.0.0/0 next-hop 10.0.0.1 set routing-instances siteA-vr1 routing-options static route 10.20.20.0/24 next-hop st0.1 commit
验证
验证活动 VPN 隧道
目的
验证隧道是否在两个 vSRX 虚拟防火墙实例上都已启动。
行动
root@> show security ipsec security-associations
Total active tunnels: 1 ID Algorithm SPI Life:sec/kb Mon lsys Port Gateway <131074 ESP:aes-‐cbc-‐256/sha1 de836105 1504/ unlim -‐ root 4500 52.200.89.XXX >131074 ESP:aes-‐cbc-‐256/sha1 b349bc84 1504/ unlim -‐ root 4500 52.200.89.XXX