Help about setting a wireguard client on routeros.

RouterOS General
1

I’m tried to set up set up wireguard VPN on my rb4011, but it didn’t work, help needed.
Below is the configuration file I download from vpn provider:

[Interface]
PrivateKey=[int_privatekey=]
Address=172.18.x.y
DNS=69.25.114.211,69.25.114.213
[Peer]
PublicKey=[peer_publickey=]
AllowedIPs=0.0.0.0/0
Endpoint=wg.vpnserver.com:51820
PersistentKeepalive=21

Router configuration:

/interface wireguard
add listen-port=48172 mtu=1420 name=wg_pure
/interface wireguard peers
add allowed-address=0.0.0.0/0 endpoint-address=wg.vpnserver.com endpoint-port=51820 \
    interface=wg_pure persistent-keepalive=21s public-key="[peer_publickey=]"
    
/ip address
add address=192.168.88.1/24 comment=defconf interface=bridge network=192.168.88.0
add address=172.18.x.y interface=wg_pure network=172.18.x.y
/ip route
add dst-address=0.0.0.0/0 gateway=wg_pure routing-table=wg_pure

/routing table
add fib name=wg_pure
 
/ip firewall nat
add action=masquerade chain=srcnat disabled=no out-interface=wg_pure
/ip/firewall/mangle
 add action=mark-routing chain=prerouting connection-mark=no-mark \
    dst-address-list=vpn dst-address-type=!local new-routing-mark=wg_pure \
    passthrough=yes

The wireguard interface is running, I torched the wireguard interface, there is only tx tranfic. Do I have enough information from the configuration file, or there are mistakes in router config?

Any words is appreciated!

2

Hi there,so,
Lets look at what the VPN provider has given you.

  1. Private KEY ---------> You are to use this as your private key on the MT. This will generate a public key which they will already have since they have given you the private key to use.
  2. Address ---------------> Hence you make this your IP address 172.18.x.y/24
  3. Public Key, ----> what you put on the ROUTER peer settings for the VPN provider
  4. Allowed IPs —> clearly what you need to put for your users to access all possible www. addresses.


    YOUR ROUTER>>>>>> another poster with snippets only, if you ask for help, you need to NOT assume you know what I need to see, … the whole config matters in ROS.
    Sorry, I need to see complete config,

/export file=anynameyouwish ( minus router serial number and any public WANIP information )

Why are you mangling???

3

Thanks for the reply, the configuration will be posted when I back to work.

Why are you mangling???

I‘m in china, the VPN service is used to access websites such as youtube which is blocked by the GFW.

I’m a novice, I set up the VPN client based on a tutorial article from the internet, mangle is used to redirect some traffic to VPN.

/ip/firewall/mangle
 add action=mark-routing chain=prerouting connection-mark=no-mark \
    dst-address-list=!novpn dst-address-type=!local new-routing-mark=to_vpn \
    passthrough=yes

Is there a better way to do that?

4

I’m even surprised this would work in China. Wireguard is rather easy for an advanced firewall to detect & filter…that might be the reason why you only see “Tx” traffic :frowning:

5

Hello Mr ZTX ..
so in dst-address-list=vpn , can you tell me what is the IP address that you put in this field..?

6

In address list VPN, there is IPs of twitter.com, google.com, facebook.com.

7

The complete config:

# jan/02/2023 12:05:58 by RouterOS 7.6
# software id = 2HJX-8QY4
#
# model = RB2011UiAS-2HnD
# serial number = 
/interface bridge
add admin-mac=E4:8D:8C:1A:1D:AA auto-mac=no comment=defconf name=bridge
/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n channel-width=20/40mhz-XX \
    disabled=no distance=indoors frequency=auto installation=indoor mode=\
    ap-bridge ssid=MikroTik-1A1DB3 wireless-protocol=802.11
/interface wireguard
add listen-port=1997 mtu=1420 name=wg_pure
/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN
/interface wireless security-profiles
set [ find default=yes ] supplicant-identity=MikroTik
/ip pool
add name=default-dhcp ranges=192.168.88.10-192.168.88.254
/ip dhcp-server
add address-pool=default-dhcp interface=bridge name=defconf
/port
set 0 name=serial0
/routing table
add fib name=wg_pure
/interface bridge port
add bridge=bridge comment=defconf interface=ether2
add bridge=bridge comment=defconf interface=ether3
add bridge=bridge comment=defconf interface=ether4
add bridge=bridge comment=defconf interface=ether5
add bridge=bridge comment=defconf interface=ether6
add bridge=bridge comment=defconf interface=ether7
add bridge=bridge comment=defconf interface=ether8
add bridge=bridge comment=defconf interface=ether9
add bridge=bridge comment=defconf interface=ether10
add bridge=bridge comment=defconf interface=sfp1
add bridge=bridge comment=defconf interface=wlan1
/ip neighbor discovery-settings
set discover-interface-list=LAN
/interface list member
add comment=defconf interface=bridge list=LAN
add comment=defconf interface=ether1 list=WAN
/interface wireguard peers
add allowed-address=0.0.0.0/0 endpoint-address=sx016388-wg.pointtoserver.com \
    endpoint-port=51820 interface=wg_pure persistent-keepalive=21s \
    public-key="MvQ1EzHQE7hed8yKuhpjCNUbjzSIJB3jaQ50qh40wEU="
/ip address
add address=192.168.88.1/24 comment=defconf interface=bridge network=\
    192.168.88.0
add address=172.18.240.x interface=wg_pure network=172.18.240.0
/ip dhcp-client
add comment=defconf interface=ether1
/ip dhcp-server network
add address=192.168.88.0/24 comment=defconf dns-server=192.168.88.1 gateway=\
    192.168.88.1
/ip dns
set allow-remote-requests=yes
/ip dns static
add address=192.168.88.1 comment=defconf name=router.lan
/ip firewall address-list
add address=1.1.8.0/24 comment=chnips list=novpn
add address=1.2.4.0/24 comment=chnips list=novpn
add address=1.8.1.0/24 comment=chnips list=novpn
add address=1.8.8.0/24 comment=chnips list=novpn
add address=1.12.0.0/14 comment=chnips list=novpn
... ...


/ip firewall filter
add action=accept chain=input comment=\
    "defconf: accept established,related,untracked" connection-state=\
    established,related,untracked
add action=drop chain=input comment="defconf: drop invalid" connection-state=\
    invalid
add action=accept chain=input comment="defconf: accept ICMP" protocol=icmp
add action=accept chain=input comment=\
    "defconf: accept to local loopback (for CAPsMAN)" dst-address=127.0.0.1
add action=drop chain=input comment="defconf: drop all not coming from LAN" \
    in-interface-list=!LAN
add action=accept chain=forward comment="defconf: accept in ipsec policy" \
    ipsec-policy=in,ipsec
add action=accept chain=forward comment="defconf: accept out ipsec policy" \
    ipsec-policy=out,ipsec
add action=fasttrack-connection chain=forward comment="defconf: fasttrack" \
    connection-state=established,related hw-offload=yes
add action=accept chain=forward comment=\
    "defconf: accept established,related, untracked" connection-state=\
    established,related,untracked
add action=drop chain=forward comment="defconf: drop invalid" \
    connection-state=invalid
add action=drop chain=forward comment=\
    "defconf: drop all from WAN not DSTNATed" connection-nat-state=!dstnat \
    connection-state=new in-interface-list=WAN
/ip firewall mangle
add action=mark-connection chain=prerouting connection-mark=no-mark \
    dst-address-list=!novpn dst-address-type=!local new-connection-mark=\
    wg_pure
add action=mark-routing chain=prerouting connection-mark=wg_pure \
    new-routing-mark=wg_pure
/ip firewall nat
add action=masquerade chain=srcnat comment="defconf: masquerade" \
    ipsec-policy=out,none out-interface-list=WAN
add action=masquerade chain=srcnat out-interface=wg_pure
/ip route
add dst-address=0.0.0.0/0 gateway=wg_pure routing-table=wg_pure
/ipv6 firewall address-list
add address=::/128 comment="defconf: unspecified address" list=bad_ipv6
add address=::1/128 comment="defconf: lo" list=bad_ipv6
add address=fec0::/10 comment="defconf: site-local" list=bad_ipv6
add address=::ffff:0.0.0.0/96 comment="defconf: ipv4-mapped" list=bad_ipv6
add address=::/96 comment="defconf: ipv4 compat" list=bad_ipv6
add address=100::/64 comment="defconf: discard only " list=bad_ipv6
add address=2001:db8::/32 comment="defconf: documentation" list=bad_ipv6
add address=2001:10::/28 comment="defconf: ORCHID" list=bad_ipv6
add address=3ffe::/16 comment="defconf: 6bone" list=bad_ipv6
/ipv6 firewall filter
add action=accept chain=input comment=\
    "defconf: accept established,related,untracked" connection-state=\
    established,related,untracked
add action=drop chain=input comment="defconf: drop invalid" connection-state=\
    invalid
add action=accept chain=input comment="defconf: accept ICMPv6" protocol=\
    icmpv6
add action=accept chain=input comment="defconf: accept UDP traceroute" port=\
    33434-33534 protocol=udp
add action=accept chain=input comment=\
    "defconf: accept DHCPv6-Client prefix delegation." dst-port=546 protocol=\
    udp src-address=fe80::/10
add action=accept chain=input comment="defconf: accept IKE" dst-port=500,4500 \
    protocol=udp
add action=accept chain=input comment="defconf: accept ipsec AH" protocol=\
    ipsec-ah
add action=accept chain=input comment="defconf: accept ipsec ESP" protocol=\
    ipsec-esp
add action=accept chain=input comment=\
    "defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=input comment=\
    "defconf: drop everything else not coming from LAN" in-interface-list=\
    !LAN
add action=accept chain=forward comment=\
    "defconf: accept established,related,untracked" connection-state=\
    established,related,untracked
add action=drop chain=forward comment="defconf: drop invalid" \
    connection-state=invalid
add action=drop chain=forward comment=\
    "defconf: drop packets with bad src ipv6" src-address-list=bad_ipv6
add action=drop chain=forward comment=\
    "defconf: drop packets with bad dst ipv6" dst-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: rfc4890 drop hop-limit=1" \
    hop-limit=equal:1 protocol=icmpv6
add action=accept chain=forward comment="defconf: accept ICMPv6" protocol=\
    icmpv6
add action=accept chain=forward comment="defconf: accept HIP" protocol=139
add action=accept chain=forward comment="defconf: accept IKE" dst-port=\
    500,4500 protocol=udp
add action=accept chain=forward comment="defconf: accept ipsec AH" protocol=\
    ipsec-ah
add action=accept chain=forward comment="defconf: accept ipsec ESP" protocol=\
    ipsec-esp
add action=accept chain=forward comment=\
    "defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=forward comment=\
    "defconf: drop everything else not coming from LAN" in-interface-list=\
    !LAN
/system clock
set time-zone-name=Asia/Shanghai
/system routerboard settings
set silent-boot=yes
/tool mac-server
set allowed-interface-list=LAN
/tool mac-server mac-winbox
set allowed-interface-list=LAN

/ip/firewall/connection/print:

Flags: S - SEEN-REPLY; A - ASSURED; C - CONFIRMED; F - FASTTRACK; s - SRCNAT
Columns: PROTOCOL, SRC-ADDRESS, DST-ADDRESS, TCP-STATE, TIMEOUT, ORIG-RATE, REPL-RATE, ORIG-PACKETS, REPL-PACKETS, ORIG-BYTES, REPL-BYTES
 #       PROTOCOL  SRC-ADDRESS           DST-ADDRESS            TCP-STATE    TIMEOUT    ORIG-RATE  REPL-RATE  ORIG-PACKETS  REPL-PACKETS  ORIG-BYTES   REPL-BYTES
26   C   udp       192.168.7.226:1997    69.25.114.212:51820                 7s         0bps       0bps                 19             0       3 344            0

Please help, Thanks!