i have a case in my office
ip pub : 172.16.31.2/32
ip local : 192.168.30.0/24
dns = 8.8.8.8
8.8.4.4
/ip pool
add address = 192.168.30.231 - 192.168.30.235
/ppp profile
name = VPN-L2TP
local-address=192.168.30.231
add dns-server = 8.8.8.8
8.8.4.4
remote-address = VPN-L2TP
use-encryption=yes
/ppp secret
name = test-l2tp
local-address = 192.168.30.231
password=123456
profile=VPN-L2TP
routes=192.168.30.0/24
service=l2tp
/interface l2tp-server server
set enabled = yes
use-ipsec = yes
ipsec-secret = 123456
keepalive-timeout = disabled
/ip ipsec proposal
set [ find default=yes ]
enc-algorithms = aes-256-cbc , aes-128-cbc , 3des
lifetime = 0s
pfs-group = none
/ip ipsec peer
add address = 172.16.31.2/32
dh-group = modp1024
enc-algorithm = aes-256, aes-128, 3des
generate-policy = port-override
how can i connected with my device android ?