Alright.
192.168.31.1 is my router's local IP.
192.168.1.1 is my ISP box's IP.
My ISP box is working as a router for several home devices. It offers an unencrypted wifi network which I want to keep as it is.
My Mi Router is connected to the ISP box by ethernet. It is serving up a different WiFi network which I want to be fully wrapped into the VPN's tunnel (all traffic, http, DNS, torrenting...).
Below are the last settings used. With those, when connected to the Mi Router's WiFi network, my IP is the VPN's one, but DNS servers are my ISP's.
Following settings might not have any sense sometimes since I've been editing and trying every combinaison all day long :).
uci show network
network.loopback=interface
network.loopback.ifname='lo'
network.loopback.proto='static'
network.loopback.ipaddr='127.0.0.1'
network.loopback.netmask='255.0.0.0'
network.globals=globals
network.globals.ula_prefix='fdce:cb14:7f60::/48'
network.lan=interface
network.lan.type='bridge'
network.lan.ifname='eth0.1'
network.lan.proto='static'
network.lan.netmask='255.255.255.0'
network.lan.ip6assign='60'
network.lan.ipaddr='192.168.31.1'
network.lan.peerdns='0'
network.lan.dns='208.67.222.222 208.67.220.220'
network.lan_dev=device
network.lan_dev.name='eth0.1'
network.lan_dev.macaddr='50:xx:xx:xx:xx:xx'
network.wan=interface
network.wan.ifname='eth0.2'
network.wan.proto='dhcp'
network.wan6=interface
network.wan6.ifname='eth0.2'
network.wan6.proto='dhcpv6'
network.@switch[0]=switch
network.@switch[0].name='switch0'
network.@switch[0].reset='1'
network.@switch[0].enable_vlan='1'
network.@switch_vlan[0]=switch_vlan
network.@switch_vlan[0].device='switch0'
network.@switch_vlan[0].vlan='1'
network.@switch_vlan[0].ports='2 3 6t'
network.@switch_vlan[1]=switch_vlan
network.@switch_vlan[1].device='switch0'
network.@switch_vlan[1].vlan='2'
network.@switch_vlan[1].ports='1 6t'
network.TIGER_VPN=interface
network.TIGER_VPN.proto='none'
network.TIGER_VPN.ifname='tun0'
network.TIGER_VPN.auto='1'
uci show firewall
firewall.@defaults[0]=defaults
firewall.@defaults[0].syn_flood='1'
firewall.@defaults[0].input='ACCEPT'
firewall.@defaults[0].output='ACCEPT'
firewall.@defaults[0].forward='REJECT'
firewall.@zone[0]=zone
firewall.@zone[0].name='lan'
firewall.@zone[0].input='ACCEPT'
firewall.@zone[0].output='ACCEPT'
firewall.@zone[0].forward='ACCEPT'
firewall.@zone[0].network='lan'
firewall.@zone[1]=zone
firewall.@zone[1].name='wan'
firewall.@zone[1].input='REJECT'
firewall.@zone[1].output='ACCEPT'
firewall.@zone[1].forward='REJECT'
firewall.@zone[1].masq='1'
firewall.@zone[1].mtu_fix='1'
firewall.@zone[1].network='wan wan6'
firewall.@forwarding[0]=forwarding
firewall.@forwarding[0].src='lan'
firewall.@forwarding[0].dest='wan'
firewall.@rule[0]=rule
firewall.@rule[0].name='Allow-DHCP-Renew'
firewall.@rule[0].src='wan'
firewall.@rule[0].proto='udp'
firewall.@rule[0].dest_port='68'
firewall.@rule[0].target='ACCEPT'
firewall.@rule[0].family='ipv4'
firewall.@rule[1]=rule
firewall.@rule[1].name='Allow-Ping'
firewall.@rule[1].src='wan'
firewall.@rule[1].proto='icmp'
firewall.@rule[1].icmp_type='echo-request'
firewall.@rule[1].family='ipv4'
firewall.@rule[1].target='ACCEPT'
firewall.@rule[2]=rule
firewall.@rule[2].name='Allow-IGMP'
firewall.@rule[2].src='wan'
firewall.@rule[2].proto='igmp'
firewall.@rule[2].family='ipv4'
firewall.@rule[2].target='ACCEPT'
firewall.@rule[3]=rule
firewall.@rule[3].name='Allow-DHCPv6'
firewall.@rule[3].src='wan'
firewall.@rule[3].proto='udp'
firewall.@rule[3].src_ip='fc00::/6'
firewall.@rule[3].dest_ip='fc00::/6'
firewall.@rule[3].dest_port='546'
firewall.@rule[3].family='ipv6'
firewall.@rule[3].target='ACCEPT'
firewall.@rule[4]=rule
firewall.@rule[4].name='Allow-MLD'
firewall.@rule[4].src='wan'
firewall.@rule[4].proto='icmp'
firewall.@rule[4].src_ip='fe80::/10'
firewall.@rule[4].icmp_type='130/0' '131/0' '132/0' '143/0'
firewall.@rule[4].family='ipv6'
firewall.@rule[4].target='ACCEPT'
firewall.@rule[5]=rule
firewall.@rule[5].name='Allow-ICMPv6-Input'
firewall.@rule[5].src='wan'
firewall.@rule[5].proto='icmp'
firewall.@rule[5].icmp_type='echo-request' 'echo-reply' 'destination-unreachable' 'packet-too-big' 'time-exceeded' 'bad-header' 'unknown-header-type' 'router-solicitation' 'neighbour-solicitation' 'router-advertisement' 'neighbour-advertisement'
firewall.@rule[5].limit='1000/sec'
firewall.@rule[5].family='ipv6'
firewall.@rule[5].target='ACCEPT'
firewall.@rule[6]=rule
firewall.@rule[6].name='Allow-ICMPv6-Forward'
firewall.@rule[6].src='wan'
firewall.@rule[6].dest='*'
firewall.@rule[6].proto='icmp'
firewall.@rule[6].icmp_type='echo-request' 'echo-reply' 'destination-unreachable' 'packet-too-big' 'time-exceeded' 'bad-header' 'unknown-header-type'
firewall.@rule[6].limit='1000/sec'
firewall.@rule[6].family='ipv6'
firewall.@rule[6].target='ACCEPT'
firewall.@rule[7]=rule
firewall.@rule[7].name='Allow-IPSec-ESP'
firewall.@rule[7].src='wan'
firewall.@rule[7].dest='lan'
firewall.@rule[7].proto='esp'
firewall.@rule[7].target='ACCEPT'
firewall.@rule[8]=rule
firewall.@rule[8].name='Allow-ISAKMP'
firewall.@rule[8].src='wan'
firewall.@rule[8].dest='lan'
firewall.@rule[8].dest_port='500'
firewall.@rule[8].proto='udp'
firewall.@rule[8].target='ACCEPT'
firewall.@include[0]=include
firewall.@include[0].path='/etc/firewall.user'
firewall.@zone[2]=zone
firewall.@zone[2].name='tiger_fw'
firewall.@zone[2].forward='REJECT'
firewall.@zone[2].output='ACCEPT'
firewall.@zone[2].network='TIGER_VPN'
firewall.@zone[2].input='REJECT'
firewall.@zone[2].masq='1'
firewall.@zone[2].mtu_fix='1'
firewall.@forwarding[1]=forwarding
firewall.@forwarding[1].dest='tiger_fw'
firewall.@forwarding[1].src='lan'
uci show dhcp
dhcp.@dnsmasq[0]=dnsmasq
dhcp.@dnsmasq[0].domainneeded='1'
dhcp.@dnsmasq[0].boguspriv='1'
dhcp.@dnsmasq[0].filterwin2k='0'
dhcp.@dnsmasq[0].localise_queries='1'
dhcp.@dnsmasq[0].rebind_protection='1'
dhcp.@dnsmasq[0].rebind_localhost='1'
dhcp.@dnsmasq[0].local='/lan/'
dhcp.@dnsmasq[0].domain='lan'
dhcp.@dnsmasq[0].expandhosts='1'
dhcp.@dnsmasq[0].nonegcache='0'
dhcp.@dnsmasq[0].authoritative='1'
dhcp.@dnsmasq[0].readethers='1'
dhcp.@dnsmasq[0].leasefile='/tmp/dhcp.leases'
dhcp.@dnsmasq[0].resolvfile='/tmp/resolv.conf.auto'
dhcp.@dnsmasq[0].nonwildcard='1'
dhcp.@dnsmasq[0].localservice='1'
dhcp.lan=dhcp
dhcp.lan.interface='lan'
dhcp.lan.start='100'
dhcp.lan.limit='150'
dhcp.lan.leasetime='12h'
dhcp.lan.dhcpv6='server'
dhcp.lan.ra='server'
dhcp.lan.ra_management='1'
dhcp.wan=dhcp
dhcp.wan.interface='wan'
dhcp.wan.ignore='1'
dhcp.odhcpd=odhcpd
dhcp.odhcpd.maindhcp='0'
dhcp.odhcpd.leasefile='/tmp/hosts/odhcpd'
dhcp.odhcpd.leasetrigger='/usr/sbin/odhcpd-update'
dhcp.odhcpd.loglevel='4'
IPv4 :
ip -4 addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1000
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
7: eth0.2@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
inet 192.168.1.84/24 brd 192.168.1.255 scope global eth0.2
valid_lft forever preferred_lft forever
24: br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
inet 192.168.31.1/24 brd 192.168.31.255 scope global br-lan
valid_lft forever preferred_lft forever
29: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN qlen 100
inet 100.97.0.107/16 brd 100.97.255.255 scope global tun0
valid_lft forever preferred_lft forever
ip -4 route show
0.0.0.0/1 via 100.97.0.1 dev tun0
default via 192.168.1.1 dev eth0.2 src 192.168.1.84
100.97.0.0/16 dev tun0 scope link src 100.97.0.107
128.0.0.0/1 via 100.97.0.1 dev tun0
188.172.219.42 via 192.168.1.1 dev eth0.2
192.168.1.0/24 dev eth0.2 scope link src 192.168.1.84
192.168.31.0/24 dev br-lan scope link src 192.168.31.1
ip -4 rule show
0: from all lookup local
32766: from all lookup main
32767: from all lookup default
iptables-save
# Generated by iptables-save v1.6.2 on Tue Apr 16 13:01:22 2019
*nat
:PREROUTING ACCEPT [229474:57852471]
:INPUT ACCEPT [461:27301]
:OUTPUT ACCEPT [873:62443]
:POSTROUTING ACCEPT [3:726]
:postrouting_lan_rule - [0:0]
:postrouting_rule - [0:0]
:postrouting_tiger_fw_rule - [0:0]
:postrouting_wan_rule - [0:0]
:prerouting_lan_rule - [0:0]
:prerouting_rule - [0:0]
:prerouting_tiger_fw_rule - [0:0]
:prerouting_wan_rule - [0:0]
:zone_lan_postrouting - [0:0]
:zone_lan_prerouting - [0:0]
:zone_tiger_fw_postrouting - [0:0]
:zone_tiger_fw_prerouting - [0:0]
:zone_wan_postrouting - [0:0]
:zone_wan_prerouting - [0:0]
-A PREROUTING -m comment --comment "!fw3: Custom prerouting rule chain" -j prerouting_rule
-A PREROUTING -i br-lan -m comment --comment "!fw3" -j zone_lan_prerouting
-A PREROUTING -i eth0.2 -m comment --comment "!fw3" -j zone_wan_prerouting
-A PREROUTING -i tun0 -m comment --comment "!fw3" -j zone_tiger_fw_prerouting
-A POSTROUTING -m comment --comment "!fw3: Custom postrouting rule chain" -j postrouting_rule
-A POSTROUTING -o br-lan -m comment --comment "!fw3" -j zone_lan_postrouting
-A POSTROUTING -o eth0.2 -m comment --comment "!fw3" -j zone_wan_postrouting
-A POSTROUTING -o tun0 -m comment --comment "!fw3" -j zone_tiger_fw_postrouting
-A zone_lan_postrouting -m comment --comment "!fw3: Custom lan postrouting rule chain" -j postrouting_lan_rule
-A zone_lan_prerouting -m comment --comment "!fw3: Custom lan prerouting rule chain" -j prerouting_lan_rule
-A zone_tiger_fw_postrouting -m comment --comment "!fw3: Custom tiger_fw postrouting rule chain" -j postrouting_tiger_fw_rule
-A zone_tiger_fw_postrouting -m comment --comment "!fw3" -j MASQUERADE
-A zone_tiger_fw_prerouting -m comment --comment "!fw3: Custom tiger_fw prerouting rule chain" -j prerouting_tiger_fw_rule
-A zone_wan_postrouting -m comment --comment "!fw3: Custom wan postrouting rule chain" -j postrouting_wan_rule
-A zone_wan_postrouting -m comment --comment "!fw3" -j MASQUERADE
-A zone_wan_prerouting -m comment --comment "!fw3: Custom wan prerouting rule chain" -j prerouting_wan_rule
COMMIT
# Completed on Tue Apr 16 13:01:22 2019
# Generated by iptables-save v1.6.2 on Tue Apr 16 13:01:22 2019
*mangle
:PREROUTING ACCEPT [461942:284281358]
:INPUT ACCEPT [227928:136513307]
:FORWARD ACCEPT [140718:114718630]
:OUTPUT ACCEPT [67314:12241558]
:POSTROUTING ACCEPT [207908:126955228]
-A FORWARD -o eth0.2 -p tcp -m tcp --tcp-flags SYN,RST SYN -m comment --comment "!fw3: Zone wan MTU fixing" -j TCPMSS --clamp-mss-to-pmtu
-A FORWARD -o tun0 -p tcp -m tcp --tcp-flags SYN,RST SYN -m comment --comment "!fw3: Zone tiger_fw MTU fixing" -j TCPMSS --clamp-mss-to-pmtu
COMMIT
# Completed on Tue Apr 16 13:01:22 2019
# Generated by iptables-save v1.6.2 on Tue Apr 16 13:01:22 2019
*filter
:INPUT ACCEPT [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]
:forwarding_lan_rule - [0:0]
:forwarding_rule - [0:0]
:forwarding_tiger_fw_rule - [0:0]
:forwarding_wan_rule - [0:0]
:input_lan_rule - [0:0]
:input_rule - [0:0]
:input_tiger_fw_rule - [0:0]
:input_wan_rule - [0:0]
:output_lan_rule - [0:0]
:output_rule - [0:0]
:output_tiger_fw_rule - [0:0]
:output_wan_rule - [0:0]
:reject - [0:0]
:syn_flood - [0:0]
:zone_lan_dest_ACCEPT - [0:0]
:zone_lan_forward - [0:0]
:zone_lan_input - [0:0]
:zone_lan_output - [0:0]
:zone_lan_src_ACCEPT - [0:0]
:zone_tiger_fw_dest_ACCEPT - [0:0]
:zone_tiger_fw_dest_REJECT - [0:0]
:zone_tiger_fw_forward - [0:0]
:zone_tiger_fw_input - [0:0]
:zone_tiger_fw_output - [0:0]
:zone_tiger_fw_src_REJECT - [0:0]
:zone_wan_dest_ACCEPT - [0:0]
:zone_wan_dest_REJECT - [0:0]
:zone_wan_forward - [0:0]
:zone_wan_input - [0:0]
:zone_wan_output - [0:0]
:zone_wan_src_REJECT - [0:0]
-A INPUT -i lo -m comment --comment "!fw3" -j ACCEPT
-A INPUT -m comment --comment "!fw3: Custom input rule chain" -j input_rule
-A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -m comment --comment "!fw3" -j ACCEPT
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -m comment --comment "!fw3" -j syn_flood
-A INPUT -i br-lan -m comment --comment "!fw3" -j zone_lan_input
-A INPUT -i eth0.2 -m comment --comment "!fw3" -j zone_wan_input
-A INPUT -i tun0 -m comment --comment "!fw3" -j zone_tiger_fw_input
-A FORWARD -m comment --comment "!fw3: Custom forwarding rule chain" -j forwarding_rule
-A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -m comment --comment "!fw3" -j ACCEPT
-A FORWARD -i br-lan -m comment --comment "!fw3" -j zone_lan_forward
-A FORWARD -i eth0.2 -m comment --comment "!fw3" -j zone_wan_forward
-A FORWARD -i tun0 -m comment --comment "!fw3" -j zone_tiger_fw_forward
-A FORWARD -m comment --comment "!fw3" -j reject
-A OUTPUT -o lo -m comment --comment "!fw3" -j ACCEPT
-A OUTPUT -m comment --comment "!fw3: Custom output rule chain" -j output_rule
-A OUTPUT -m conntrack --ctstate RELATED,ESTABLISHED -m comment --comment "!fw3" -j ACCEPT
-A OUTPUT -o br-lan -m comment --comment "!fw3" -j zone_lan_output
-A OUTPUT -o eth0.2 -m comment --comment "!fw3" -j zone_wan_output
-A OUTPUT -o tun0 -m comment --comment "!fw3" -j zone_tiger_fw_output
-A reject -p tcp -m comment --comment "!fw3" -j REJECT --reject-with tcp-reset
-A reject -m comment --comment "!fw3" -j REJECT --reject-with icmp-port-unreachable
-A syn_flood -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -m limit --limit 25/sec --limit-burst 50 -m comment --comment "!fw3" -j RETURN
-A syn_flood -m comment --comment "!fw3" -j DROP
-A zone_lan_dest_ACCEPT -o br-lan -m comment --comment "!fw3" -j ACCEPT
-A zone_lan_forward -m comment --comment "!fw3: Custom lan forwarding rule chain" -j forwarding_lan_rule
-A zone_lan_forward -m comment --comment "!fw3: Zone lan to wan forwarding policy" -j zone_wan_dest_ACCEPT
-A zone_lan_forward -m comment --comment "!fw3: Zone lan to tiger_fw forwarding policy" -j zone_tiger_fw_dest_ACCEPT
-A zone_lan_forward -m conntrack --ctstate DNAT -m comment --comment "!fw3: Accept port forwards" -j ACCEPT
-A zone_lan_forward -m comment --comment "!fw3" -j zone_lan_dest_ACCEPT
-A zone_lan_input -m comment --comment "!fw3: Custom lan input rule chain" -j input_lan_rule
-A zone_lan_input -m conntrack --ctstate DNAT -m comment --comment "!fw3: Accept port redirections" -j ACCEPT
-A zone_lan_input -m comment --comment "!fw3" -j zone_lan_src_ACCEPT
-A zone_lan_output -m comment --comment "!fw3: Custom lan output rule chain" -j output_lan_rule
-A zone_lan_output -m comment --comment "!fw3" -j zone_lan_dest_ACCEPT
-A zone_lan_src_ACCEPT -i br-lan -m conntrack --ctstate NEW,UNTRACKED -m comment --comment "!fw3" -j ACCEPT
-A zone_tiger_fw_dest_ACCEPT -o tun0 -m conntrack --ctstate INVALID -m comment --comment "!fw3: Prevent NAT leakage" -j DROP
-A zone_tiger_fw_dest_ACCEPT -o tun0 -m comment --comment "!fw3" -j ACCEPT
-A zone_tiger_fw_dest_REJECT -o tun0 -m comment --comment "!fw3" -j reject
-A zone_tiger_fw_forward -m comment --comment "!fw3: Custom tiger_fw forwarding rule chain" -j forwarding_tiger_fw_rule
-A zone_tiger_fw_forward -m conntrack --ctstate DNAT -m comment --comment "!fw3: Accept port forwards" -j ACCEPT
-A zone_tiger_fw_forward -m comment --comment "!fw3" -j zone_tiger_fw_dest_REJECT
-A zone_tiger_fw_input -m comment --comment "!fw3: Custom tiger_fw input rule chain" -j input_tiger_fw_rule
-A zone_tiger_fw_input -m conntrack --ctstate DNAT -m comment --comment "!fw3: Accept port redirections" -j ACCEPT
-A zone_tiger_fw_input -m comment --comment "!fw3" -j zone_tiger_fw_src_REJECT
-A zone_tiger_fw_output -m comment --comment "!fw3: Custom tiger_fw output rule chain" -j output_tiger_fw_rule
-A zone_tiger_fw_output -m comment --comment "!fw3" -j zone_tiger_fw_dest_ACCEPT
-A zone_tiger_fw_src_REJECT -i tun0 -m comment --comment "!fw3" -j reject
-A zone_wan_dest_ACCEPT -o eth0.2 -m conntrack --ctstate INVALID -m comment --comment "!fw3: Prevent NAT leakage" -j DROP
-A zone_wan_dest_ACCEPT -o eth0.2 -m comment --comment "!fw3" -j ACCEPT
-A zone_wan_dest_REJECT -o eth0.2 -m comment --comment "!fw3" -j reject
-A zone_wan_forward -m comment --comment "!fw3: Custom wan forwarding rule chain" -j forwarding_wan_rule
-A zone_wan_forward -p esp -m comment --comment "!fw3: Allow-IPSec-ESP" -j zone_lan_dest_ACCEPT
-A zone_wan_forward -p udp -m udp --dport 500 -m comment --comment "!fw3: Allow-ISAKMP" -j zone_lan_dest_ACCEPT
-A zone_wan_forward -m conntrack --ctstate DNAT -m comment --comment "!fw3: Accept port forwards" -j ACCEPT
-A zone_wan_forward -m comment --comment "!fw3" -j zone_wan_dest_REJECT
-A zone_wan_input -m comment --comment "!fw3: Custom wan input rule chain" -j input_wan_rule
-A zone_wan_input -p udp -m udp --dport 68 -m comment --comment "!fw3: Allow-DHCP-Renew" -j ACCEPT
-A zone_wan_input -p icmp -m icmp --icmp-type 8 -m comment --comment "!fw3: Allow-Ping" -j ACCEPT
-A zone_wan_input -p igmp -m comment --comment "!fw3: Allow-IGMP" -j ACCEPT
-A zone_wan_input -m conntrack --ctstate DNAT -m comment --comment "!fw3: Accept port redirections" -j ACCEPT
-A zone_wan_input -m comment --comment "!fw3" -j zone_wan_src_REJECT
-A zone_wan_output -m comment --comment "!fw3: Custom wan output rule chain" -j output_wan_rule
-A zone_wan_output -m comment --comment "!fw3" -j zone_wan_dest_ACCEPT
-A zone_wan_src_REJECT -i eth0.2 -m comment --comment "!fw3" -j reject
COMMIT
# Completed on Tue Apr 16 13:01:22 2019
IPv6 :
ip -6 addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UNKNOWN qlen 1000
inet6 fe80::5264:2bff:fead:9343/64 scope link
valid_lft forever preferred_lft forever
7: eth0.2@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 2a02:8428:80aa:2c01:5264:2bff:fead:9343/64 scope global dynamic
valid_lft 604667sec preferred_lft 604667sec
inet6 fe80::5264:2bff:fead:9343/64 scope link
valid_lft forever preferred_lft forever
24: br-lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 fdce:cb14:7f60::1/60 scope global
valid_lft forever preferred_lft forever
inet6 fe80::5264:2bff:fead:9344/64 scope link
valid_lft forever preferred_lft forever
26: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 fe80::5264:2bff:fead:9345/64 scope link
valid_lft forever preferred_lft forever
27: wlan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
inet6 fe80::5264:2bff:fead:9346/64 scope link
valid_lft forever preferred_lft forever
29: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 state UNKNOWN qlen 100
inet6 fe80::54b8:bea2:a993:6af2/64 scope link
valid_lft forever preferred_lft forever
ip -6 route show
default from 2a02:8428:80aa:2c01::/64 via fe80::e65d:51ff:fee6:5b38 dev eth0.2 metric 384
2a02:8428:80aa:2c01::/64 dev eth0.2 metric 256
fdce:cb14:7f60::/64 dev br-lan metric 1024
unreachable fdce:cb14:7f60::/48 dev lo metric 2147483647 error -148
fe80::/64 dev eth0 metric 256
fe80::/64 dev eth0.2 metric 256
fe80::/64 dev br-lan metric 256
fe80::/64 dev wlan1 metric 256
fe80::/64 dev wlan0 metric 256
fe80::/64 dev tun0 metric 256
anycast 2a02:8428:80aa:2c01:: dev eth0.2 metric 0
anycast fdce:cb14:7f60:: dev br-lan metric 0
anycast fe80:: dev eth0 metric 0
anycast fe80:: dev eth0.2 metric 0
anycast fe80:: dev br-lan metric 0
anycast fe80:: dev wlan1 metric 0
anycast fe80:: dev wlan0 metric 0
anycast fe80:: dev tun0 metric 0
ff00::/8 dev eth0 metric 256
ff00::/8 dev eth0.2 metric 256
ff00::/8 dev br-lan metric 256
ff00::/8 dev wlan1 metric 256
ff00::/8 dev wlan0 metric 256
ff00::/8 dev tun0 metric 256
ip -6 rule show
0: from all lookup local
32766: from all lookup main
4200000001: from all iif lo lookup unspec 12
4200000007: from all iif eth0.2 lookup unspec 12
4200000007: from all iif eth0.2 lookup unspec 12
4200000024: from all iif br-lan lookup unspec 12
4200000029: from all iif tun0 lookup unspec 12
ip6tables-save
# Generated by ip6tables-save v1.6.2 on Tue Apr 16 13:06:05 2019
*mangle
:PREROUTING ACCEPT [217946:96862786]
:INPUT ACCEPT [1813:174717]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [1846:229896]
:POSTROUTING ACCEPT [1846:229896]
-A FORWARD -o eth0.2 -p tcp -m tcp --tcp-flags SYN,RST SYN -m comment --comment "!fw3: Zone wan MTU fixing" -j TCPMSS --clamp-mss-to-pmtu
-A FORWARD -o tun0 -p tcp -m tcp --tcp-flags SYN,RST SYN -m comment --comment "!fw3: Zone tiger_fw MTU fixing" -j TCPMSS --clamp-mss-to-pmtu
COMMIT
# Completed on Tue Apr 16 13:06:05 2019
# Generated by ip6tables-save v1.6.2 on Tue Apr 16 13:06:05 2019
*filter
:INPUT ACCEPT [0:0]
:FORWARD DROP [0:0]
:OUTPUT ACCEPT [0:0]
:forwarding_lan_rule - [0:0]
:forwarding_rule - [0:0]
:forwarding_tiger_fw_rule - [0:0]
:forwarding_wan_rule - [0:0]
:input_lan_rule - [0:0]
:input_rule - [0:0]
:input_tiger_fw_rule - [0:0]
:input_wan_rule - [0:0]
:output_lan_rule - [0:0]
:output_rule - [0:0]
:output_tiger_fw_rule - [0:0]
:output_wan_rule - [0:0]
:reject - [0:0]
:syn_flood - [0:0]
:zone_lan_dest_ACCEPT - [0:0]
:zone_lan_forward - [0:0]
:zone_lan_input - [0:0]
:zone_lan_output - [0:0]
:zone_lan_src_ACCEPT - [0:0]
:zone_tiger_fw_dest_ACCEPT - [0:0]
:zone_tiger_fw_dest_REJECT - [0:0]
:zone_tiger_fw_forward - [0:0]
:zone_tiger_fw_input - [0:0]
:zone_tiger_fw_output - [0:0]
:zone_tiger_fw_src_REJECT - [0:0]
:zone_wan_dest_ACCEPT - [0:0]
:zone_wan_dest_REJECT - [0:0]
:zone_wan_forward - [0:0]
:zone_wan_input - [0:0]
:zone_wan_output - [0:0]
:zone_wan_src_REJECT - [0:0]
-A INPUT -i lo -m comment --comment "!fw3" -j ACCEPT
-A INPUT -m comment --comment "!fw3: Custom input rule chain" -j input_rule
-A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -m comment --comment "!fw3" -j ACCEPT
-A INPUT -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -m comment --comment "!fw3" -j syn_flood
-A INPUT -i br-lan -m comment --comment "!fw3" -j zone_lan_input
-A INPUT -i eth0.2 -m comment --comment "!fw3" -j zone_wan_input
-A INPUT -i tun0 -m comment --comment "!fw3" -j zone_tiger_fw_input
-A FORWARD -m comment --comment "!fw3: Custom forwarding rule chain" -j forwarding_rule
-A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -m comment --comment "!fw3" -j ACCEPT
-A FORWARD -i br-lan -m comment --comment "!fw3" -j zone_lan_forward
-A FORWARD -i eth0.2 -m comment --comment "!fw3" -j zone_wan_forward
-A FORWARD -i tun0 -m comment --comment "!fw3" -j zone_tiger_fw_forward
-A FORWARD -m comment --comment "!fw3" -j reject
-A OUTPUT -o lo -m comment --comment "!fw3" -j ACCEPT
-A OUTPUT -m comment --comment "!fw3: Custom output rule chain" -j output_rule
-A OUTPUT -m conntrack --ctstate RELATED,ESTABLISHED -m comment --comment "!fw3" -j ACCEPT
-A OUTPUT -o br-lan -m comment --comment "!fw3" -j zone_lan_output
-A OUTPUT -o eth0.2 -m comment --comment "!fw3" -j zone_wan_output
-A OUTPUT -o tun0 -m comment --comment "!fw3" -j zone_tiger_fw_output
-A reject -p tcp -m comment --comment "!fw3" -j REJECT --reject-with tcp-reset
-A reject -m comment --comment "!fw3" -j REJECT --reject-with icmp6-port-unreachable
-A syn_flood -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -m limit --limit 25/sec --limit-burst 50 -m comment --comment "!fw3" -j RETURN
-A syn_flood -m comment --comment "!fw3" -j DROP
-A zone_lan_dest_ACCEPT -o br-lan -m comment --comment "!fw3" -j ACCEPT
-A zone_lan_forward -m comment --comment "!fw3: Custom lan forwarding rule chain" -j forwarding_lan_rule
-A zone_lan_forward -m comment --comment "!fw3: Zone lan to wan forwarding policy" -j zone_wan_dest_ACCEPT
-A zone_lan_forward -m comment --comment "!fw3: Zone lan to tiger_fw forwarding policy" -j zone_tiger_fw_dest_ACCEPT
-A zone_lan_forward -m comment --comment "!fw3" -j zone_lan_dest_ACCEPT
-A zone_lan_input -m comment --comment "!fw3: Custom lan input rule chain" -j input_lan_rule
-A zone_lan_input -m comment --comment "!fw3" -j zone_lan_src_ACCEPT
-A zone_lan_output -m comment --comment "!fw3: Custom lan output rule chain" -j output_lan_rule
-A zone_lan_output -m comment --comment "!fw3" -j zone_lan_dest_ACCEPT
-A zone_lan_src_ACCEPT -i br-lan -m conntrack --ctstate NEW,UNTRACKED -m comment --comment "!fw3" -j ACCEPT
-A zone_tiger_fw_dest_ACCEPT -o tun0 -m conntrack --ctstate INVALID -m comment --comment "!fw3: Prevent NAT leakage" -j DROP
-A zone_tiger_fw_dest_ACCEPT -o tun0 -m comment --comment "!fw3" -j ACCEPT
-A zone_tiger_fw_dest_REJECT -o tun0 -m comment --comment "!fw3" -j reject
-A zone_tiger_fw_forward -m comment --comment "!fw3: Custom tiger_fw forwarding rule chain" -j forwarding_tiger_fw_rule
-A zone_tiger_fw_forward -m comment --comment "!fw3" -j zone_tiger_fw_dest_REJECT
-A zone_tiger_fw_input -m comment --comment "!fw3: Custom tiger_fw input rule chain" -j input_tiger_fw_rule
-A zone_tiger_fw_input -m comment --comment "!fw3" -j zone_tiger_fw_src_REJECT
-A zone_tiger_fw_output -m comment --comment "!fw3: Custom tiger_fw output rule chain" -j output_tiger_fw_rule
-A zone_tiger_fw_output -m comment --comment "!fw3" -j zone_tiger_fw_dest_ACCEPT
-A zone_tiger_fw_src_REJECT -i tun0 -m comment --comment "!fw3" -j reject
-A zone_wan_dest_ACCEPT -o eth0.2 -m conntrack --ctstate INVALID -m comment --comment "!fw3: Prevent NAT leakage" -j DROP
-A zone_wan_dest_ACCEPT -o eth0.2 -m comment --comment "!fw3" -j ACCEPT
-A zone_wan_dest_REJECT -o eth0.2 -m comment --comment "!fw3" -j reject
-A zone_wan_forward -m comment --comment "!fw3: Custom wan forwarding rule chain" -j forwarding_wan_rule
-A zone_wan_forward -p ipv6-icmp -m icmp6 --icmpv6-type 128 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Forward" -j ACCEPT
-A zone_wan_forward -p ipv6-icmp -m icmp6 --icmpv6-type 129 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Forward" -j ACCEPT
-A zone_wan_forward -p ipv6-icmp -m icmp6 --icmpv6-type 1 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Forward" -j ACCEPT
-A zone_wan_forward -p ipv6-icmp -m icmp6 --icmpv6-type 2 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Forward" -j ACCEPT
-A zone_wan_forward -p ipv6-icmp -m icmp6 --icmpv6-type 3 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Forward" -j ACCEPT
-A zone_wan_forward -p ipv6-icmp -m icmp6 --icmpv6-type 4/0 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Forward" -j ACCEPT
-A zone_wan_forward -p ipv6-icmp -m icmp6 --icmpv6-type 4/1 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Forward" -j ACCEPT
-A zone_wan_forward -p esp -m comment --comment "!fw3: Allow-IPSec-ESP" -j zone_lan_dest_ACCEPT
-A zone_wan_forward -p udp -m udp --dport 500 -m comment --comment "!fw3: Allow-ISAKMP" -j zone_lan_dest_ACCEPT
-A zone_wan_forward -m comment --comment "!fw3" -j zone_wan_dest_REJECT
-A zone_wan_input -m comment --comment "!fw3: Custom wan input rule chain" -j input_wan_rule
-A zone_wan_input -s fc00::/6 -d fc00::/6 -p udp -m udp --dport 546 -m comment --comment "!fw3: Allow-DHCPv6" -j ACCEPT
-A zone_wan_input -s fe80::/10 -p ipv6-icmp -m icmp6 --icmpv6-type 130/0 -m comment --comment "!fw3: Allow-MLD" -j ACCEPT
-A zone_wan_input -s fe80::/10 -p ipv6-icmp -m icmp6 --icmpv6-type 131/0 -m comment --comment "!fw3: Allow-MLD" -j ACCEPT
-A zone_wan_input -s fe80::/10 -p ipv6-icmp -m icmp6 --icmpv6-type 132/0 -m comment --comment "!fw3: Allow-MLD" -j ACCEPT
-A zone_wan_input -s fe80::/10 -p ipv6-icmp -m icmp6 --icmpv6-type 143/0 -m comment --comment "!fw3: Allow-MLD" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 128 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 129 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 1 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 2 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 3 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 4/0 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 4/1 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 133 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 135 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 134 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -p ipv6-icmp -m icmp6 --icmpv6-type 136 -m limit --limit 1000/sec -m comment --comment "!fw3: Allow-ICMPv6-Input" -j ACCEPT
-A zone_wan_input -m comment --comment "!fw3" -j zone_wan_src_REJECT
-A zone_wan_output -m comment --comment "!fw3: Custom wan output rule chain" -j output_wan_rule
-A zone_wan_output -m comment --comment "!fw3" -j zone_wan_dest_ACCEPT
-A zone_wan_src_REJECT -i eth0.2 -m comment --comment "!fw3" -j reject
COMMIT
# Completed on Tue Apr 16 13:06:05 2019
Resolver config :
ls -l /etc/resolv.* /tmp/resolv.*; head -n -0 /etc/resolv.* /tmp/resolv.*
lrwxrwxrwx 1 root root 16 Jan 30 12:21 /etc/resolv.conf -> /tmp/resolv.conf
-rw-r--r-- 1 root root 32 Apr 15 20:10 /tmp/resolv.conf
-rw-r--r-- 1 root root 158 Apr 15 20:43 /tmp/resolv.conf.auto
==> /etc/resolv.conf <==
search lan
nameserver 127.0.0.1
==> /tmp/resolv.conf <==
search lan
nameserver 127.0.0.1
==> /tmp/resolv.conf.auto <==
# Interface lan
nameserver 208.67.222.222
nameserver 208.67.220.220
# Interface wan
nameserver 192.168.1.1
# Interface wan6
nameserver 2a02:8428:80aa:2c01::1
NB : resolv.conf.auto is overriden at each DHCP use. My local ISP box's IP is automatically added.