Fortigate VPN 无法访问网站

Question

我这里有两台 Fortigate，每个站点使用一台。

站点 A 站点 B 192.168.2.0/24 <---------- VPN --------> 192.168.10.0/24

员工通过 PPTP 连接到站点 A，并且只能访问该站点，但不能访问站点 B。

站点 a 和站点 b 之间的 Ipsec 隧道运行正常，我也可以从任何 PPTP 客户端建立到站点 A 的 VPN 连接，但无法访问站点 B。

config firewall policy
    edit 5
        set srcintf "internal"
        set dstintf "wan1"
            set srcaddr "Local_LAN"
            set dstaddr "Remote_LAN"
        set action ipsec
        set schedule "always"
            set service "ANY"
        set inbound enable
        set outbound enable
        set vpntunnel "tunnel"
    next
    edit 1
        set srcintf "internal"
        set dstintf "wan1"
            set srcaddr "all"
            set dstaddr "all"
        set action accept
        set schedule "always"
            set service "ANY"
        set nat enable
    next

    edit 50
        set srcintf "wan1"
        set dstintf "internal"
            set srcaddr "PPTP"
            set dstaddr "all"
        set action accept
        set schedule "always"
            set service "ANY"
        set nat enable
    next
    edit 4
        set srcintf "wan1"
        set dstintf "wan1"
            set srcaddr "PPTP"
            set dstaddr "all"
        set action accept
        set schedule "always"
            set service "ANY"
        set nat enable
    next
end

有人知道我需要设置哪些政策才能实现吗？谢谢

更新：

192.168.2.1（站点 a 路由器）至 192.168.10.1（站点 b 路由器）跟踪路由

traceroute to 192.168.10.1 (192.168.10.1), 32 hops max, 72 byte packets
 1  192.168.10.1  33.596 ms  33.415 ms  32.957 ms

PPTP 客户端到站点 b 路由器跟踪路由

traceroute to 192.168.10.1 (192.168.10.1), 64 hops max, 52 byte packets
 1  192.168.2.160 (192.168.2.160)  37.521 ms  33.914 ms  33.654 ms
 2  h254.s98.ts.hinet.net (168.95.98.254)  58.420 ms  50.837 ms  49.903 ms
 3  tp-s2-c6r11.router.hinet.net (168.95.82.46)  49.852 ms  50.701 ms  51.416 ms
 4  tpdt-3011.hinet.net (220.128.3.114)  54.643 ms  56.940 ms  58.699 ms
 5  tpdb-3101.hinet.net (220.128.14.241)  51.098 ms  52.266 ms  50.028 ms
 6  * * *
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