Sveiki,

atsinaujinau mikrotika su ipsec hardwariniu palaikymu, tai nutariau 
persidaryt is pptp i ji.

kaip ir viskas ciki piki, o bet taciau susiduriau su problema, kad is to 
paties IP tik 1 connectionas.. tarkim PC ir telefas is to pacio public 
IP jungiantis jau nepaeina, ankstesni prisijungima nukala..

dabar radau ir wiki tai pamineta:
https://wiki.mikrotik.com/wiki/Manual:Interface/L2TP#Connecting_Remote_Client
Warning: Only one L2TP/IpSec connection can be established through the 
NAT. Which means that only one client can connect to the sever located 
behind the same router.

yra koks workaroundas?

Dovydas