Wireguard routing issue with OpenWrt on Raspberry pi as router

hadifarnoud · October 1, 2022, 6:58pm

This is my network setup:

This is ip route show result. the *** ip is my wireguard server.

root@OpenWrt:~# ip route show
default via 192.168.0.254 dev eth1  src 192.168.0.113  metric 20 
***.***.***.***  via 192.168.0.254 dev eth1  metric 20 
192.168.0.0/24 dev eth1 scope link  metric 20 
192.168.1.0/24 dev br-lan scope link  src 192.168.1.1

my wireguard config is fine as I can use it on my macbook. I did set "Use default gateway" and "Use gateway metric" (10 for wireguard interface and 20 for WAN interface) in wireguard interface config

"vpn" firewall zone created and set up as below:

psherman · October 1, 2022, 7:01pm

You haven’t really described the problem. What is happening and what do you want/expect to happen?

Please copy the output of the following commands and post it here using the "Preformatted text </> " button:

Remember to redact passwords, MAC addresses and any public IP addresses you may have:

cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall

hadifarnoud · October 1, 2022, 7:46pm

the problem is when I turn on Wireguard interface, my ip is not changed.

cat /etc/config/network

root@OpenWrt:~# cat /etc/config/network

config interface 'loopback'
	option device 'lo'
	option proto 'static'
	option ipaddr '127.0.0.1'
	option netmask '255.0.0.0'

config globals 'globals'
	option ula_prefix 'fd8c:4078:e227::/48'

config device
	option name 'br-lan'
	option type 'bridge'
	list ports 'eth0'

config interface 'lan'
	option device 'br-lan'
	option proto 'static'
	option netmask '255.255.255.0'
	option ip6assign '60'
	option ipaddr '192.168.1.1'
	option defaultroute '0'

config interface 'wwan'
	option proto 'dhcp'

config interface 'WAN'
	option proto 'dhcp'
	option device 'eth1'
	option metric '20'

config interface 'wg0'
	option proto 'wireguard'
	option private_key '*****'
	list addresses '10.66.66.19/32'
	list addresses 'fd42:42:42::19/128'
	option peerdns '0'
	list dns '1.1.1.1'
	list dns '8.8.8.8'
	option metric '10'

config wireguard_wg0
	option description 'Imported peer configuration'
	option public_key '*****'
	option preshared_key '****'
	list allowed_ips '0.0.0.0/0'
	list allowed_ips '::/0'
	option endpoint_host '****'
	option endpoint_port '53660'
	option route_allowed_ips '1'
	option persistent_keepalive '25'

config rule
	option in 'WAN'
	option out 'wg0'

I don't have my wifi setup on openwrt.
cat /etc/config/wireless

root@OpenWrt:~# cat /etc/config/wireless

config wifi-device 'radio0'
	option type 'mac80211'
	option path 'platform/soc/fe300000.mmcnr/mmc_host/mmc1/mmc1:0001/mmc1:0001:1'
	option channel '36'
	option band '5g'
	option htmode 'VHT80'
	option cell_density '0'

config wifi-iface 'default_radio0'
	option device 'radio0'
	option network 'lan'
	option mode 'ap'
	option ssid 'OpenWrt'
	option encryption 'none'

cat /etc/config/dhcp

root@OpenWrt:~# cat /etc/config/dhcp

config dnsmasq
	option domainneeded '1'
	option localise_queries '1'
	option rebind_protection '1'
	option rebind_localhost '1'
	option local '/lan/'
	option domain 'lan'
	option expandhosts '1'
	option authoritative '1'
	option readethers '1'
	option leasefile '/tmp/dhcp.leases'
	option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
	option localservice '1'
	option ednspacket_max '1232'
	list notinterface 'wan'

config dhcp 'lan'
	option interface 'lan'
	option start '100'
	option limit '150'
	option leasetime '12h'
	option dhcpv4 'server'
	option dhcpv6 'server'
	option ra 'server'
	list ra_flags 'managed-config'
	list ra_flags 'other-config'

config dhcp 'wan'
	option interface 'wan'
	option ignore '1'

config odhcpd 'odhcpd'
	option maindhcp '0'
	option leasefile '/tmp/hosts/odhcpd'
	option leasetrigger '/usr/sbin/odhcpd-update'
	option loglevel '4'

cat /etc/config/firewall

root@OpenWrt:~# cat /etc/config/firewall

config defaults
	option input 'ACCEPT'
	option output 'ACCEPT'
	option forward 'REJECT'
	option synflood_protect '1'

config zone
	option name 'lan'
	option input 'ACCEPT'
	option output 'ACCEPT'
	option forward 'ACCEPT'
	list network 'lan'

config zone
	option name 'wan'
	option input 'REJECT'
	option output 'ACCEPT'
	option forward 'REJECT'
	option mtu_fix '1'
	list network 'wan'
	list network 'wan6'
	list network 'wwan'
	list network 'WAN'
	option masq '1'

config forwarding
	option src 'lan'
	option dest 'wan'

config rule
	option name 'Allow-DHCP-Renew'
	option src 'wan'
	option proto 'udp'
	option dest_port '68'
	option target 'ACCEPT'
	option family 'ipv4'

config rule
	option name 'Allow-Ping'
	option src 'wan'
	option proto 'icmp'
	option icmp_type 'echo-request'
	option family 'ipv4'
	option target 'ACCEPT'

config rule
	option name 'Allow-IGMP'
	option src 'wan'
	option proto 'igmp'
	option family 'ipv4'
	option target 'ACCEPT'

config rule
	option name 'Allow-DHCPv6'
	option src 'wan'
	option proto 'udp'
	option dest_port '546'
	option family 'ipv6'
	option target 'ACCEPT'

config rule
	option name 'Allow-MLD'
	option src 'wan'
	option proto 'icmp'
	option src_ip 'fe80::/10'
	list icmp_type '130/0'
	list icmp_type '131/0'
	list icmp_type '132/0'
	list icmp_type '143/0'
	option family 'ipv6'
	option target 'ACCEPT'

config rule
	option name 'Allow-ICMPv6-Input'
	option src 'wan'
	option proto 'icmp'
	list icmp_type 'echo-request'
	list icmp_type 'echo-reply'
	list icmp_type 'destination-unreachable'
	list icmp_type 'packet-too-big'
	list icmp_type 'time-exceeded'
	list icmp_type 'bad-header'
	list icmp_type 'unknown-header-type'
	list icmp_type 'router-solicitation'
	list icmp_type 'neighbour-solicitation'
	list icmp_type 'router-advertisement'
	list icmp_type 'neighbour-advertisement'
	option limit '1000/sec'
	option family 'ipv6'
	option target 'ACCEPT'

config rule
	option name 'Allow-ICMPv6-Forward'
	option src 'wan'
	option dest '*'
	option proto 'icmp'
	list icmp_type 'echo-request'
	list icmp_type 'echo-reply'
	list icmp_type 'destination-unreachable'
	list icmp_type 'packet-too-big'
	list icmp_type 'time-exceeded'
	list icmp_type 'bad-header'
	list icmp_type 'unknown-header-type'
	option limit '1000/sec'
	option family 'ipv6'
	option target 'ACCEPT'

config rule
	option name 'Allow-IPSec-ESP'
	option src 'wan'
	option dest 'lan'
	option proto 'esp'
	option target 'ACCEPT'

config rule
	option name 'Allow-ISAKMP'
	option src 'wan'
	option dest 'lan'
	option dest_port '500'
	option proto 'udp'
	option target 'ACCEPT'

config zone
	option name 'vpn'
	option output 'ACCEPT'
	option forward 'REJECT'
	option input 'REJECT'
	option masq '1'
	list network 'wg0'

config forwarding
	option src 'lan'
	option dest 'vpn'

hadifarnoud · October 1, 2022, 8:03pm

apparently my VPN server is blocked and that's why nothing works. I live in Iran

if you see anything wrong in configs please do let me know

psherman · October 1, 2022, 10:51pm

The config looks fine, but the dns entries won’t do anything in a wg interface, and the metric probably is not helping here. But if your vpn is blocked, that is obviously an issue beyond your openwrt config.