Seems like VPN over ICMP is always ON regardless settings

[dimzon]

At least it holds port 1 6 and 17 in raw mode

 netstat -nlp | grep raw
raw        0      0 0.0.0.0:1               0.0.0.0:*               7           4449/vpnserver  
raw        0      0 0.0.0.0:6               0.0.0.0:*               7           4449/vpnserver  
raw        0      0 0.0.0.0:17              0.0.0.0:*               7           4449/vpnserver  
raw        0      0 127.0.0.2:50            0.0.0.0:*               7           4449/vpnserver  
raw        0      0 127.0.0.1:50            0.0.0.0:*               7           4449/vpnserver  
raw        0      0 45.62.122.205:50        0.0.0.0:*               7           4449/vpnserver  
raw        0      0 127.0.0.2:52            0.0.0.0:*               7           4449/vpnserver  
raw        0      0 127.0.0.1:52            0.0.0.0:*               7           4449/vpnserver  
raw        0      0 45.62.122.205:52        0.0.0.0:*               7           4449/vpnserver  

cat /opt/vpnserver/vpn_server.config|grep -i icmp
        bool EnableVpnOverIcmp false
                uint PACKET_LOG_ICMP 0
                uint SecureNAT_MaxIcmpSessionsPerIp 0

VPN Server>ServerInfoGet
ServerInfoGet command - Get server information
Item                            |Value
--------------------------------+--------------------------------------------
Product Name                    |SoftEther VPN Server (32 bit) (Open Source)
Version                         |Version 4.21 Build 9613   (English)
Build                           |Compiled 2016/04/24 15:39:17 by yagi at pc30