Давайте гадать. Тип подключения и логи со стороны сервера, конечно, не нужны.
извиняюсь...
тип подключения - L2TP + IPSec
лог со стороны сервера:
11:03:34 ipsec,info respond new phase 1 (Identity Protection): 1.1.1.1[500]<=>2.2.2.2[500]
11:03:35 ipsec,info ISAKMP-SA established 1.1.1.1[4500]-2.2.2.2[4500] spi:2c5b017733fa2855:b89fe2d868f88dcb
11:03:36 l2tp,info first L2TP UDP packet received from 2.2.2.2
11:03:36 l2tp,ppp,info,account ramil_remote logged in, 10.250.1.23
11:03:36 l2tp,ppp,info <l2tp-ramil_remote>: authenticated
11:03:36 l2tp,ppp,info <l2tp-ramil_remote>: terminating...
11:03:36 l2tp,ppp,info,account ramil_remote logged out, 0 0 10 0 1
11:03:36 l2tp,ppp,info <l2tp-ramil_remote>: disconnected
11:03:36 ipsec,info purging ISAKMP-SA 1.1.1.1[4500]<=>2.2.2.2[4500] spi=2c5b017733fa2855:b89fe2d868f88dcb.
11:03:36 ipsec,info ISAKMP-SA deleted 1.1.1.1[4500]-2.2.2.2[4500] spi:2c5b017733fa2855:b89fe2d868f88dcb rekey:1
11:04:00 ipsec,info respond new phase 1 (Identity Protection): 1.1.1.1[500]<=>2.2.2.2[500]
11:04:01 ipsec,info ISAKMP-SA established 1.1.1.1[4500]-2.2.2.2[4500] spi:faa632145c67a24c:02081380b17d228b
11:04:02 l2tp,info first L2TP UDP packet received from 2.2.2.2
11:04:02 l2tp,ppp,info,account ramil_remote logged in, 10.250.1.23
11:04:02 l2tp,ppp,info <l2tp-ramil_remote>: authenticated
11:04:02 l2tp,ppp,info <l2tp-ramil_remote>: terminating...
11:04:02 ipsec,info purging ISAKMP-SA 1.1.1.1[4500]<=>2.2.2.2[4500] spi=faa632145c67a24c:02081380b17d228b.
11:04:02 l2tp,ppp,info,account ramil_remote logged out, 0 0 10 0 1
11:04:02 ipsec,info ISAKMP-SA deleted 1.1.1.1[4500]-2.2.2.2[4500] spi:faa632145c67a24c:02081380b17d228b rekey:1
11:04:02 l2tp,ppp,info <l2tp-ramil_remote>: disconnected