PPTP сервер на OPT1 интерфейсе

[DasTieRR]

Нужно запустить PPTP сервер на pfsense 1.2.3, но не на WAN (серый IP) интерфейсе, а на OPT1 (белый IP). Я так понял, что при активации ВПН сервера он автоматом добавляет разрешающие правила в WAN и на LAN, исходя из такого понимания проблемы, я решил обойти следующим образом - добавил в разделе NAT forward портов TCP 1723 и GRE с OPT1 на LAN, дело дошло до авторизации и вывалилось в ошибку 619.

В логах system:
May 4 23:08:13 mpd: PROTOCOMP
May 4 23:08:13 mpd: MRU 1500
May 4 23:08:13 mpd: MAGICNUM 1ad5763a
May 4 23:08:13 mpd: AUTHPROTO CHAP MSOFTv2
May 4 23:08:13 mpd: MP MRRU 1600
May 4 23:08:13 mpd: MP SHORTSEQ
May 4 23:08:13 mpd: ENDPOINTDISC [802.1] 00 80 48 27 49 b1
May 4 23:08:15 mpd: [pt0] LCP: SendConfigReq #130
May 4 23:08:15 mpd: ACFCOMP
May 4 23:08:15 mpd: PROTOCOMP
May 4 23:08:15 mpd: MRU 1500
May 4 23:08:15 mpd: MAGICNUM 1ad5763a
May 4 23:08:15 mpd: AUTHPROTO CHAP MSOFTv2
May 4 23:08:15 mpd: MP MRRU 1600
May 4 23:08:15 mpd: MP SHORTSEQ
May 4 23:08:15 mpd: ENDPOINTDISC [802.1] 00 80 48 27 49 b1
May 4 23:08:17 mpd: [pt0] LCP: state change Req-Sent –> Stopped
May 4 23:08:17 mpd: [pt0] LCP: LayerFinish
May 4 23:08:17 mpd: [pt0] LCP: parameter negotiation failed
May 4 23:08:17 mpd: [pt0] LCP: LayerFinish
May 4 23:08:17 mpd: [pt0] device: CLOSE event in state UP
May 4 23:08:17 mpd: pptp0-0: clearing call
May 4 23:08:17 mpd: pptp0-0: killing channel
May 4 23:08:17 mpd: [pt0] PPTP call terminated
May 4 23:08:17 mpd: [pt0] IFACE: Close event
May 4 23:08:17 mpd: [pt0] IPCP: Close event
May 4 23:08:17 mpd: [pt0] IPCP: state change Starting –> Initial
May 4 23:08:17 mpd: [pt0] IPCP: LayerFinish
May 4 23:08:17 mpd: [pt0] IFACE: Close event
May 4 23:08:17 mpd: pptp0: closing connection with айпиклиента:1058
May 4 23:08:17 mpd: [pt0] IFACE: Close event
May 4 23:08:17 mpd: [pt0] device is now in state CLOSING
May 4 23:08:17 mpd: [pt0] bundle: CLOSE event in state OPENED
May 4 23:08:17 mpd: [pt0] closing link "pt0"…
May 4 23:08:17 mpd: [pt0] device: CLOSE event in state CLOSING
May 4 23:08:17 mpd: [pt0] device is now in state CLOSING
May 4 23:08:17 mpd: [pt0] link: CLOSE event
May 4 23:08:17 mpd: [pt0] LCP: Close event
May 4 23:08:17 mpd: [pt0] LCP: state change Stopped –> Closed
May 4 23:08:17 mpd: [pt0] device: DOWN event in state CLOSING
May 4 23:08:17 mpd: [pt0] device is now in state DOWN
May 4 23:08:17 mpd: [pt0] link: DOWN event
May 4 23:08:17 mpd: [pt0] LCP: Down event
May 4 23:08:17 mpd: [pt0] LCP: state change Closed –> Initial
May 4 23:08:17 mpd: [pt0] LCP: phase shift ESTABLISH –> DEAD
May 4 23:08:17 mpd: [pt0] device: DOWN event in state DOWN
May 4 23:08:17 mpd: [pt0] device is now in state DOWN
May 4 23:08:17 mpd: [pt0] link: DOWN event
May 4 23:08:17 mpd: [pt0] LCP: Down event
May 4 23:08:17 mpd: pptp0: killing connection with айпиклиента:1058

Какие порты нужно ещё переадресовать?
P.S. Менять местами WAN и OPT1 не могу.