firewall {
all-ping enable
broadcast-ping disable
group {
address-group trusted_IPs {
address 1.2.3.4
address 5.6.7.8
address 9.10.11.12
description "for remote GUI access"
}
}
ipv6-name WANv6_IN {
default-action drop
description "WAN inbound traffic forwarded to LAN"
enable-default-log
rule 10 {
action accept
description "Allow established/related sessions"
state {
established enable
related enable
}
}
rule 20 {
action drop
description "Drop invalid state"
state {
invalid enable
}
}
}
ipv6-name WANv6_LOCAL {
default-action drop
description "WAN inbound traffic to the router"
enable-default-log
rule 10 {
action accept
description "Allow established/related sessions"
state {
established enable
related enable
}
}
rule 20 {
action drop
description "Drop invalid state"
state {
invalid enable
}
}
rule 30 {
action accept
description "Allow IPv6 icmp"
protocol ipv6-icmp
}
rule 40 {
action accept
description "allow dhcpv6"
destination {
port 546
}
protocol udp
source {
port 547
}
}
}
ipv6-receive-redirects disable
ipv6-src-route disable
ip-src-route disable
log-martians enable
name WAN_IN {
default-action drop
description "WAN to internal"
rule 10 {
action accept
description "Allow established/related"
state {
established enable
related enable
}
}
rule 20 {
action drop
description "Drop invalid state"
state {
invalid enable
}
}
}
name WAN_LOCAL {
default-action drop
description "WAN to router"
rule 10 {
action accept
description "remote GUI"
destination {
port 443
}
log disable
protocol tcp
source {
group {
address-group trusted_IPs
}
}
}
rule 20 {
action accept
description "Allow established/related"
state {
established enable
related enable
}
}
rule 30 {
action accept
description ike
destination {
port 500
}
log disable
protocol udp
state {
invalid enable
}
}
rule 40 {
action accept
description esp
log disable
protocol esp
}
rule 50 {
action accept
description nat-t
destination {
port 4500
}
log disable
protocol udp
}
rule 60 {
action accept
description l2tp
destination {
port 1701
}
ipsec {
match-ipsec
}
log disable
protocol udp
}
}
receive-redirects disable
send-redirects enable
source-validation disable
syn-cookies enable
}
interfaces {
ethernet eth0 {
address 10.10.10.10/30
description Internet
duplex auto
firewall {
in {
ipv6-name WANv6_IN
name WAN_IN
}
local {
ipv6-name WANv6_LOCAL
name WAN_LOCAL
}
}
speed auto
}
ethernet eth1 {
address 10.15.20.254/24
description "LAN 1"
duplex auto
speed auto
}
ethernet eth2 {
address 192.168.2.254/24
description "LAN 2"
duplex auto
speed auto
}
ethernet eth3 {
duplex auto
speed auto
}
loopback lo {
}
}
port-forward {
auto-firewall enable
hairpin-nat disable
wan-interface eth0
}
service {
dhcp-server {
disabled false
hostfile-update disable
shared-network-name LAN2 {
authoritative enable
subnet 192.168.2.0/24 {
default-router 192.168.2.254
dns-server 192.168.2.254
lease 86400
start 192.168.2.38 {
stop 192.168.2.43
}
}
}
static-arp disable
use-dnsmasq disable
}
dns {
forwarding {
cache-size 10000
listen-on eth1
listen-on eth2
name-server 1.1.1.1
name-server 9.9.9.9
}
}
gui {
http-port 80
https-port 443
older-ciphers enable
}
nat {
rule 5010 {
description "masquerade for WAN"
outbound-interface eth0
type masquerade
}
}
ssh {
port 22
protocol-version v2
}
unms {
connection wss://
}
}
system {
domain-name ubnt
gateway-address 10.10.10.1
host-name ER4
login {
user ubnt {
authentication {
encrypted-password ubnt
}
level admin
}
}
name-server 1.1.1.1
name-server 9.9.9.9
ntp {
server 0.ubnt.pool.ntp.org {
}
server 1.ubnt.pool.ntp.org {
}
server 2.ubnt.pool.ntp.org {
}
server 3.ubnt.pool.ntp.org {
}
}
offload {
hwnat disable
ipsec disable
}
syslog {
global {
facility all {
level notice
}
facility protocols {
level debug
}
}
}
time-zone UTC
}
vpn {
ipsec {
allow-access-to-local-interface disable
auto-firewall-nat-exclude disable
ipsec-interfaces {
interface eth0
}
}
l2tp {
remote-access {
authentication {
local-users {
username hello {
password 1234
}
}
mode local
}
client-ip-pool {
start 192.168.100.100
stop 192.168.100.110
}
dns-servers {
server-1 1.1.1.1
server-2 9.9.9.9
}
idle 1800
ipsec-settings {
authentication {
mode pre-shared-secret
pre-shared-secret 1234
}
ike-lifetime 3600
lifetime 3600
}
mtu 1492
outside-address 10.10.10.10
}
}
}
