cat /proc/sys/net/ipv4/ip_forward
1
root@edge-01:~# iptables-save -c
# Generated by iptables-save v1.6.0 on Wed Nov 20 15:04:16 2019
*filter
:INPUT ACCEPT [216226:418809810]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [208925:424099720]
[2:168] -A INPUT -i tun0 -j ACCEPT
[457:61242] -A INPUT -i enp0s3 -p udp -m udp --dport 1194 -j ACCEPT
[15:900] -A FORWARD -i enp0s3 -o tun0 -j ACCEPT
[0:0] -A FORWARD -i tun0 -o enp0s3 -j ACCEPT
COMMIT
# Completed on Wed Nov 20 15:04:16 2019
# Generated by iptables-save v1.6.0 on Wed Nov 20 15:04:16 2019
*nat
:PREROUTING ACCEPT [177:9185]
:INPUT ACCEPT [177:9185]
:OUTPUT ACCEPT [224:13904]
:POSTROUTING ACCEPT [224:13904]
[20:1200] -A PREROUTING -p tcp -m tcp --dport 88 -j DNAT --to-destination 10.8.0.3:88
[0:0] -A POSTROUTING -s 10.8.0.0/24 -o enp0s3 -j MASQUERADE
COMMIT
# Completed on Wed Nov 20 15:04:16 2019