基于路由的站点到站点VPN到Azure（IKEv2/IPsec上的BGP）¶
本指南展示了一个使用VTI和BGP进行动态路由更新的IKEv2到Azure的站点到站点VPN路由示例。
有关冗余/有源配置，请参阅
先决条件¶
一对在启用BGP的主动-被动配置中部署的Azure VNet网关
部署在Azure中的本地网络网关，表示Vyos设备，与下面的Vyos设置匹配，除了地址空间，它只需要Vyos专用IP，在本例中为10.10.0.5/32
部署在Azure中的连接资源，用于链接Azure VNet网关和表示Vyos设备的本地网络网关。
例¶
WAN 接口 |
eth0 |
本地地址空间 |
10.10.0.0/16 |
Azure地址空间 |
10.0.0.0/16 |
Vyos公共IP |
198.51.100.3 |
Vyos私有IP |
10.10.0.5 |
Azure VNet网关公共IP |
203.0.113.2 |
Azure VNet网关BGP IP |
10.0.0.4 |
预共享密钥 |
ch00s3-4-s3cur3-psk |
Vyos ASN |
64499 |
Azure ASN |
65540 |
Vyos配置¶
配置IKE和ESP设置，以匹配Azure支持的子集：
set vpn ipsec esp-group AZURE compression 'disable'
set vpn ipsec esp-group AZURE lifetime '3600'
set vpn ipsec esp-group AZURE mode 'tunnel'
set vpn ipsec esp-group AZURE pfs 'dh-group2'
set vpn ipsec esp-group AZURE proposal 1 encryption 'aes256'
set vpn ipsec esp-group AZURE proposal 1 hash 'sha1'
set vpn ipsec ike-group AZURE dead-peer-detection action 'restart'
set vpn ipsec ike-group AZURE dead-peer-detection interval '15'
set vpn ipsec ike-group AZURE dead-peer-detection timeout '30'
set vpn ipsec ike-group AZURE ikev2-reauth 'yes'
set vpn ipsec ike-group AZURE key-exchange 'ikev2'
set vpn ipsec ike-group AZURE lifetime '28800'
set vpn ipsec ike-group AZURE proposal 1 dh-group '2'
set vpn ipsec ike-group AZURE proposal 1 encryption 'aes256'
set vpn ipsec ike-group AZURE proposal 1 hash 'sha1'
在eth0上启用IPsec
set vpn ipsec ipsec-interfaces interface 'eth0'
使用虚拟IP地址配置VTI
set interfaces vti vti1 address '10.10.1.5/32'
set interfaces vti vti1 description 'Azure Tunnel'
夹紧VTI的MSS至1350以避免PMTU黑洞。
set firewall options interface vti1 adjust-mss 1350
配置VPN隧道
set vpn ipsec site-to-site peer 203.0.113.2 authentication id '198.51.100.3'
set vpn ipsec site-to-site peer 203.0.113.2 authentication mode 'pre-shared-secret'
set vpn ipsec site-to-site peer 203.0.113.2 authentication pre-shared-secret 'ch00s3-4-s3cur3-psk'
set vpn ipsec site-to-site peer 203.0.113.2 authentication remote-id '203.0.113.2'
set vpn ipsec site-to-site peer 203.0.113.2 connection-type 'respond'
set vpn ipsec site-to-site peer 203.0.113.2 description 'AZURE PRIMARY TUNNEL'
set vpn ipsec site-to-site peer 203.0.113.2 ike-group 'AZURE'
set vpn ipsec site-to-site peer 203.0.113.2 ikev2-reauth 'inherit'
set vpn ipsec site-to-site peer 203.0.113.2 local-address '10.10.0.5'
set vpn ipsec site-to-site peer 203.0.113.2 vti bind 'vti1'
set vpn ipsec site-to-site peer 203.0.113.2 vti esp-group 'AZURE'
重要提示：添加一个接口路由以到达Azure的BGP侦听器
set protocols static route 10.0.0.4/32 interface vti1
配置BGP设置
set protocols bgp 64499 neighbor 10.0.0.4 remote-as '65540'
set protocols bgp 64499 neighbor 10.0.0.4 address-family ipv4-unicast soft-reconfiguration 'inbound'
set protocols bgp 64499 neighbor 10.0.0.4 timers holdtime '30'
set protocols bgp 64499 neighbor 10.0.0.4 timers keepalive '10'
重要提示：禁用连接检查
set protocols bgp 64499 neighbor 10.0.0.4 disable-connected-check