What I have:
WorkRB
Network 10.11.27.0
PPTP Server 10.88.88.1
[admin@MikroTik] /interface pptp-server> server print
enabled: yes
max-mtu: 1460
max-mru: 1460
mrru: disabled
authentication: pap,chap,mschap1,mschap2
keepalive-timeout: 30
default-profile: default-encryption
[admin@MikroTik] > /ppp secret print detail
Flags: X - disabled
0 name="user1" service=pptp caller-id="" password="***" profile=default-encryption local-address=10.88.88.1 remote-address=10.88.88.31 routes="192.168.3.0/24 10.88.88.31 1" limit-bytes-in=0 limit-bytes-out=0
Routes
[admin@MikroTik] > /ip route print Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme, B - blackhole, U - unreachable, P - prohibit
# DST-ADDRESS PREF-SRC GATEWAY DISTANCE
0 A S 0.0.0.0/0 <my static inet IP :)> 1
1 ADC 10.11.27.0/24 10.11.27.254 ether5 0
2 ADC 10.88.88.31/32 10.88.88.1 <pptp-user1> 0
3 ADC 192.168.1.0/24 192.168.1.1 ether2 0
4 ADS 192.168.3.0/24 10.88.88.31 1
5 ADC 192.168.250.0/24 192.168.250.1 wlan1 0
HomeRB
Network 192.168.3.0
PPTP Client 10.88.88.31
Routes
[admin@MikroTik] > /ip route print
Flags: X - disabled, A - active, D - dynamic,
C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme,
B - blackhole, U - unreachable, P - prohibit
# DST-ADDRESS PREF-SRC GATEWAY DISTANCE
0 ADS 0.0.0.0/0 <my dynamic inet IP :)> 0
1 A S 10.11.27.0/24 pptp-out1 1
2 ADC 10.88.88.1/32 10.88.88.31 pptp-out1 0
3 ADC 192.168.3.0/24 192.168.3.1 bridge1 0