Amazon Virtual Private Cloud
网络管理员指南
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示例:Palo Alto Networks 设备

如果您的客户网关为 Palo Alto Networks PANOS 4.1.2+ 设备,以下主题提供了由您的整合团队提供的示例配置信息。

两个示意图说明了示例配置。第一个示意图显示客户网关的宏观布局,第二个示意图显示示例配置的详细信息。您应当使用从整合团队收到的实际配置信息,然后将其应用到客户网关。

客户网关的宏观视图

下面的示意图显示您的客户网关的详细信息。请注意,VPN 由两个隧道构成。使用冗余隧道确保某个设备发生故障情况下的持续可用性。

 客户网关概要示意图

客户网关的详细视图和示例配置

本部分的示意图演示示例 Palo Alto 客户网关。紧接着示意图的是您的整合团队应提供的相应配置信息示例。示例配置包含适用于您必须配置的各个隧道的一组信息。

另外,示例配置引用您必须提供的这些项目:

  • YOUR_UPLINK_ADDRESS - 客户网关上可通过 Internet 路由的外部接口的 IP 地址 (必须是静态的且可位于执行网络地址转换 (NAT) 的设备之后;但是,不支持 NAT 遍历 (NAT-T))。

  • YOUR_BGP_ASN – 客户网关的 BGP ASN (我们默认使用 65000)

示例配置包括几项示例值,以帮助您理解配置如何起作用。例如,我们提供 VPN 连接 ID (vpn-44a8938f)、虚拟专用网关 ID (vgw-8db04f81)、IP 地址 (72.21.209.*、169.254.255.*) 以及远程 ASN (7224) 的示例值。您将使用来源于所收到配置信息的实际值替换这些示例值。

在下面的示意图和示例配置中,您必须用适用于您的特定配置的值替换红色斜体项目。

 Palo Alto 详细示意图

警告

下面的配置信息是您的整合团队可望提供的示例。以下示例中的很多值将与您收到的实际配置信息不同。您必须使用实际值,而非此处所示的示例值,否则您的实施将会失败。

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! Amazon Web Services ! Virtual Private Cloud ! AWS utilizes unique identifiers to manipulate the configuration of ! a VPN Connection. Each VPN Connection is assigned an identifier and is ! associated with two other identifiers, namely the ! Customer Gateway Identifier and Virtual Private Gateway Identifier. ! ! Your VPN Connection ID : vpn-44a8938f ! Your Virtual Private Gateway ID : vgw-8db04f81 ! Your Customer Gateway ID : cgw-b4dc3961 ! ! ! This configuration consists of two tunnels. Both tunnels must be ! configured on your Customer Gateway. ! ! -------------------------------------------------------------------------------- ! IPSec Tunnel #1 ! -------------------------------------------------------------------------------- ! #1: Internet Key Exchange (IKE) Configuration ! ! A policy is established for the supported ISAKMP encryption, ! authentication, Diffie-Hellman, lifetime, and key parameters. ! Please note, these sample configurations are for the minimum requirement of AES128, SHA1, and DH Group 2. ! You will need to modify these sample configuration files to take advantage of AES256, SHA256, or other DH groups like 2, 14-18, 22, 23, and 24. ! The address of the external interface for your customer gateway must be a static address. ! Your customer gateway may reside behind a device performing network address translation (NAT). ! To ensure that NAT traversal (NAT-T) can function, you must adjust your firewall rules to unblock UDP port 4500. If not behind NAT, we recommend disabling NAT-T. ! configure edit network ike crypto-profiles ike-crypto-profiles ike-crypto-vpn-44a8938f-0 set dh-group group2 set hash sha1 set lifetime seconds 28800 set encryption aes128 top edit network ike gateway ike-vpn-44a8938f-0 set protocol ikev1 dpd interval 10 retry 3 enable yes set protocol ikev1 ike-crypto-profile ike-crypto-vpn-44a8938f-0 exchange-mode main set authentication pre-shared-key key plain-text-password1 set local-address ip YOUR_UPLINK_ADDRESS set local-address interface ethernet1/1 set peer-address ip 72.21.209.193 top ! #2: IPSec Configuration ! ! The IPSec transform set defines the encryption, authentication, and IPSec ! mode parameters. ! ! Please note, you may use these additionally supported IPSec parameters for encryption like AES256 and other DH groups like 2, 5, 14-18, 22, 23, and 24. edit network ike crypto-profiles ipsec-crypto-profiles ipsec-vpn-44a8938f-0 set esp authentication sha1 set esp encryption aes128 set dh-group group2 lifetime seconds 3600 top ! -------------------------------------------------------------------------------- ! #3: Tunnel Interface Configuration ! ! A tunnel interface is configured to be the logical interface associated ! with the tunnel. All traffic routed to the tunnel interface will be ! encrypted and transmitted to the VPC. Similarly, traffic from the VPC ! will be logically received on this interface. ! ! Association with the IPSec security association is done through the ! "tunnel protection" command. ! ! The address of the interface is configured with the setup for your ! Customer Gateway. If the address changes, the Customer Gateway and VPN ! Connection must be recreated with Amazon VPC. ! edit network interface tunnel set ip 169.254.255.5/30 set units tunnel.1 set mtu 1427 top edit network tunnel ipsec ipsec-tunnel-1 set auto-key ike-gateway ike-vpn-44a8938f-0 set auto-key ipsec-crypto-profile ipsec-vpn-44a8938f-0 set tunnel-interface tunnel.1 set anti-replay yes ! -------------------------------------------------------------------------------- ! #4: Border Gateway Protocol (BGP) Configuration ! ! BGP is used within the tunnel to exchange prefixes between the ! Virtual Private Gateway and your Customer Gateway. The Virtual Private Gateway ! will announce the prefix corresponding to your VPC. ! ! ! ! The local BGP Autonomous System Number (ASN) (YOUR_BGP_ASN) ! is configured as part of your Customer Gateway. If the ASN must ! be changed, the Customer Gateway and VPN Connection will need to be recreated with AWS. ! edit network virtual-router default protocol bgp set enable yes set router-id YOUR_UPLINK_ADDRESS set local-as YOUR_BGP_ASN edit peer-group AmazonBGP edit peer amazon-tunnel-44a8938f-0 set connection-options keep-alive-interval 10 set connection-options hold-time 30 set enable yes set local-address ip 169.254.255.5/30 set local-address interface tunnel.1 set peer-as 7224 set peer-address ip 169.254.255.2 top ! Your Customer Gateway may announce a default route (0.0.0.0/0) to us. edit network virtual-router default protocol bgp policy set export rules vr-export action allow set match address-prefix 0.0.0.0/0 exact yes set used-by AmazonBGP enable yes top ! To advertise additional prefixes to Amazon VPC, add these prefixes to the 'address-prefix' ! statement and identify the prefix you wish to advertise. Make sure the prefix is present ! in the routing table of the device with a valid next-hop. If you want to advertise ! 192.168.0.0/16 to Amazon, this can be done using the following. edit network virtual-router default protocol bgp policy set export rules vr-export action allow set match address-prefix 192.168.0.0/16 exact yes set used-by AmazonBGP enable yes top ! ! -------------------------------------------------------------------------------- ! IPSec Tunnel #2 ! -------------------------------------------------------------------------------- ! #1: Internet Key Exchange (IKE) Configuration ! ! A policy is established for the supported ISAKMP encryption, ! authentication, Diffie-Hellman, lifetime, and key parameters. ! Please note, these sample configurations are for the minimum requirement of AES128, SHA1, and DH Group 2. ! You will need to modify these sample configuration files to take advantage of AES256, SHA256, or other DH groups like 2, 14-18, 22, 23, and 24. ! The address of the external interface for your customer gateway must be a static address. ! Your customer gateway may reside behind a device performing network address translation (NAT). ! To ensure that NAT traversal (NAT-T) can function, you must adjust your firewall !rules to unblock UDP port 4500. If not behind NAT, we recommend disabling NAT-T. ! configure edit network ike crypto-profiles ike-crypto-profiles ike-crypto-vpn-44a8938f-1 set dh-group group2 set hash sha1 set lifetime seconds 28800 set encryption aes128 top edit network ike gateway ike-vpn-44a8938f-1 set protocol ikev1 dpd interval 10 retry 3 enable yes set protocol ikev1 ike-crypto-profile ike-crypto-vpn-35a6445c-1 exchange-mode main set authentication pre-shared-key key plain-text-password2 set local-address ip YOUR_UPLINK_ADDRESS set local-address interface ethernet1/1 set peer-address ip 72.21.209.225 top ! #2: IPSec Configuration ! ! The IPSec transform set defines the encryption, authentication, and IPSec ! mode parameters. ! ! Please note, you may use these additionally supported IPSec parameters for encryption like AES256 and other DH groups like 2, 5, 14-18, 22, 23, and 24. edit network ike crypto-profiles ipsec-crypto-profiles ipsec-vpn-44a8938f-1 set esp authentication sha1 set esp encryption aes128 set dh-group group2 lifetime seconds 3600 top ! -------------------------------------------------------------------------------- ! #3: Tunnel Interface Configuration ! ! A tunnel interface is configured to be the logical interface associated ! with the tunnel. All traffic routed to the tunnel interface will be ! encrypted and transmitted to the VPC. Similarly, traffic from the VPC ! will be logically received on this interface. ! ! Association with the IPSec security association is done through the ! "tunnel protection" command. ! ! The address of the interface is configured with the setup for your ! Customer Gateway. If the address changes, the Customer Gateway and VPN ! Connection must be recreated with Amazon VPC. ! edit network interface tunnel set ip 169.254.255.1/30 set units tunnel.2 set mtu 1427 top edit network tunnel ipsec ipsec-tunnel-2 set auto-key ike-gateway ike-vpn-44a8938f-1 set auto-key ipsec-crypto-profile ipsec-vpn-44a8938f-1 set tunnel-interface tunnel.2 set anti-replay yes ! #4: Border Gateway Protocol (BGP) Configuration ! ! BGP is used within the tunnel to exchange prefixes between the ! Virtual Private Gateway and your Customer Gateway. The Virtual Private Gateway ! will announce the prefix corresponding to your VPC. ! ! ! ! The local BGP Autonomous System Number (ASN) (YOUR_BGP_ASN) ! is configured as part of your Customer Gateway. If the ASN must ! be changed, the Customer Gateway and VPN Connection will need to be recreated with AWS. ! edit network virtual-router default protocol bgp set enable yes set router-id YOUR_UPLINK_ADDRESS set local-as YOUR_BGP_ASN edit peer-group AmazonBGP edit peer amazon-tunnel-44a8938f-1 set connection-options keep-alive-interval 10 set connection-options hold-time 30 set enable yes set local-address ip 169.254.255.1/30 set local-address interface tunnel.2 set peer-as 7224 set peer-address ip 169.254.255.6.113 top ! Your Customer Gateway may announce a default route (0.0.0.0/0) to us. edit network virtual-router default protocol bgp policy set export rules vr-export action allow set match address-prefix 0.0.0.0/0 exact yes set used-by AmazonBGP enable yes top ! To advertise additional prefixes to Amazon VPC, add these prefixes to the 'address-prefix' ! statement and identify the prefix you wish to advertise. Make sure the prefix is present ! in the routing table of the device with a valid next-hop. If you want to advertise ! 192.168.0.0/16 to Amazon, this can be done using the following. edit network virtual-router default protocol bgp policy set export rules vr-export action allow set match address-prefix 192.168.0.0/16 exact yes set used-by AmazonBGP enable yes top !

如何测试客户网关配置

您可以测试每条隧道的网关配置。

如需测试每条隧道的客户网关配置

  1. 在客户网关上确定 BGP 状态是 Active

    BGP 对等体变为活跃状态约需 30 秒。

  2. 确保客户网关在向虚拟专用网关发布路由。路由可以是默认路由 (0.0.0.0/0),也可以是您选择的更具体的路由。

正确建立后,您的 BGP 对等体应该从虚拟专用网关接收一条路由,该网关对应您的 VPC 整合团队为该 VPC 指定的前缀(例如 10.0.0.0/24)。如果 BGP 对等体已建立并且您正在接收和发布前缀,那么您的隧道就已正确配置。请确保两条隧道均处于该状态。

然后,您必须测试每个隧道的连接性,方法是在您的 VPC 中启动一个实例,从您的家庭网络 Ping 该实例。在您开始之前,确保完成以下操作:

  • 使用可以响应 Ping 请求的 AMI。我们建议您使用 Amazon Linux AMI 之一。

  • 配置实例的安全组和网络 ACL,以启用入站 ICMP 流量。

  • 确保已配置 VPN 连接路由:您的子网路由表必须包含到虚拟专用网关的路由。有关更多信息,请参阅Amazon VPC 用户指南中的在路由表中启用路由传播

如需测试各条隧道的端到端连接性

  1. 请将 Amazon Linux AMI 的任一实例启动到您的 VPC。当您从 Amazon EC2 控制台中启动实例时,在启动向导中将会列出 Amazon Linux AMI。有关更多信息,请参阅 Amazon VPC 入门指南

  2. 当实例开始运行后,获取其私有 IP 地址(例如 10.0.0.4)。 控制台显示的地址是实例详细信息的一部分。

  3. 在您的本地网络中的系统上,对实例的 IP 地址使用 ping 命令。确保您发出 ping 的计算机位于客户网关后。成功的响应内容应类似如下所示。

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    ping 10.0.0.4
    Pinging 10.0.0.4 with 32 bytes of data:
    
    Reply from 10.0.0.4: bytes=32 time<1ms TTL=128
    Reply from 10.0.0.4: bytes=32 time<1ms TTL=128
    Reply from 10.0.0.4: bytes=32 time<1ms TTL=128
    
    Ping statistics for 10.0.0.4:
    Packets: Sent = 3, Received = 3, Lost = 0 (0% loss),
    
    Approximate round trip times in milliseconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

    注意

    如果您从客户网关路由器向实例发出 ping,请确保您的 ping 消息信源为内部 IP 地址,而非隧道 IP 地址。部分 AMI 不响应从隧道 IP 地址发出的 ping 消息。

  4. (可选) 为测试隧道故障转移,您可临时禁用您的客户网关上的一个隧道,然后重复上一步。您无法禁用 VPN 连接的 AWS 端的隧道。