Используйте реальный IP-адрес для клиента pptp.

Вот моя текущая конфигурация. Я поменял реальные IP-адреса на 1.1.x.x. Дополнительная информация: Этот RB750 подключен к моему Border-роутеру через OSPF и затем настроена сессия BGP, и я получаю 0/0 от BGP-пира. С этой конфигурацией я могу подключить пользователя PPP. Когда я захожу на whatsmyip.com, он показывает IP-адрес, сконфигурированный на ether1 (1.1.168.50), а не 1.1.175.157.

[admin@MikroTik] > /export compact
# jan/23/1970 02:18:12 by RouterOS 5.18

/interface ethernet
set 0 arp=proxy-arp
set 1 name=ether2-local-master
set 2 master-port=ether2-local-master name=ether3-local-slave
set 3 master-port=ether2-local-master name=ether4-local-slave
set 4 arp=proxy-arp
/ip hotspot user profile
set [ find default=yes ] idle-timeout=none keepalive-timeout=2m
/ip pool
add name=default-dhcp ranges=192.168.88.10-192.168.88.254
add name=vpntoegang ranges=1.1.175.136-1.1.175.150
/ip dhcp-server
add address-pool=default-dhcp disabled=no interface=ether2-local-master name=default
/ppp profile
set 1 dns-server=8.8.8.8 remote-address=vpntoegang use-ipv6=no
/routing bgp instance
set default as=12345 router-id=1.1.168.50
/routing ospf instance
set [ find default=yes ] redistribute-connected=as-type-2 redistribute-static=as-type-2 router-id=1.1.168.50
/system logging action
set 3 src-address=::
/interface pptp-server server
set enabled=yes
/ip address
add address=1.1.168.50/30 interface=ether1
add address=1.1.175.130/32 interface=ether5 network=1.1.175.130
/ip dhcp-server network
add address=192.168.88.0/24 comment="default configuration" dns-server=192.168.88.1 gateway=192.168.88.1
/ip dns
set allow-remote-requests=yes max-udp-packet-size=512
/ip dns static
add address=192.168.88.1 name=router
/ip firewall filter
add chain=input comment="default configuration" protocol=icmp
add chain=input comment="default configuration" connection-state=established in-interface=ether1
add chain=input comment="default configuration" connection-state=related in-interface=ether1
add chain=input in-interface=ether1 src-address=86.89.233.x
add action=drop chain=input comment="default configuration" disabled=yes in-interface=ether1
/ip firewall nat
add action=masquerade chain=srcnat comment="default configuration" out-interface=ether1 to-addresses=0.0.0.0
/ip neighbor discovery
set ether1 disabled=yes
/ip route
add check-gateway=ping distance=1 gateway=1.1.168.49
/ppp secret
add local-address=1.1.175.157 name=vpnuser password=test profile=default-encryption remote-address=1.1.175.157 service=pptp
/queue interface
set ether1 queue=ethernet-default
set ether2-local-master queue=ethernet-default
set ether3-local-slave queue=ethernet-default
set ether4-local-slave queue=ethernet-default
set ether5 queue=ethernet-default
/routing bgp peer
add name=r2.ams5 nexthop-choice=force-self remote-address=1.1.175.2 remote-as=12345 ttl=default
/routing ospf interface
add cost=5 interface=ether1 network-type=point-to-point
/routing ospf network
add area=backbone network=1.1.168.48/30
/system logging
add topics=ospf,!raw
/tool mac-server
add disabled=no interface=ether2-local-master
add disabled=no interface=ether3-local-slave
add disabled=no interface=ether4-local-slave
add disabled=no interface=ether5
/tool mac-server mac-winbox
set [ find default=yes ] disabled=yes
add interface=ether2-local-master
add interface=ether3-local-slave
add interface=ether4-local-slave
add interface=ether5

[admin@MikroTik] >