Can not access local area network with an extender

mk24 · February 5, 2022, 8:02pm

Using /24 (also known as 255.255.255.0) means that every IP with the same first three numbers is in the same subnet, and those that don't have the same first three numbers are in a different subnet. This is recommended for small networks to keep the configuration more obvious.

I would try to avoid relayd and instead set this network up with an explicit actual route to the server. Can you install static routes on the R6200 with its stock firmware? Running OpenWrt on the R6200 is not really an option if you need wifi to work.

CKHO · February 5, 2022, 8:06pm

I actually have no permission to do that because I am not the owner of that router and I don't want to mess up more stuff

mk24 · February 5, 2022, 8:09pm

Another option could be to have both a client and an AP running on the RE305 and connect your PC to that AP. Then the server and your PC are both in the same network (the RE305 LAN) and could communicate freely. You would be using the R6200 router that you don't own strictly as a link to the Internet.

CKHO · February 5, 2022, 8:10pm

if i cant fix this issue then i might just use this method

mk24 · February 5, 2022, 8:12pm

To set up that way, it would be best to reset the RE305 to defaults and configure it as a basic NAT routed client.

CKHO · February 5, 2022, 8:13pm

i am using a snapshot image(doesnt have luci) if i reset to defaults idk if it will auto config as a nat routed client

mk24 · February 5, 2022, 8:17pm

A single port device will default to just having a lan network, so you will need to add a wan network (name it exactly 'wan' lower case, as that name is already in the firewall) and a wifi client on the wan network with credentials to connect to the R6200. At that point you should have Internet access on your PC plugged into the single Ethernet port (lan). Then add a wifi AP mode attached to LAN so you have wireless and wired bridged together.

CKHO · February 5, 2022, 8:32pm

here is a clip of my openwrt setting
I idk if I make some stupid setting here

psherman · February 5, 2022, 8:33pm

Instead of a video, please show us the configs... watching a video and understanding all the settings as you quickly click through them is just rather difficult.

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

CKHO · February 5, 2022, 8:38pm

> 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 'fd5d:df68:92ee::/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 '255.255.254.0'
        option ip6assign '60'
        option ipaddr '192.168.0.40'

config switch
        option name 'switch0'
        option reset '1'
        option enable_vlan '0'

config interface 'wan'
        option proto 'dhcp'

config interface 'bridge'
        option proto 'relay'
        option ipaddr '192.168.0.42'
        list network 'lan'
        list network 'wan'

>wireless
config wifi-device 'radio0'
        option type 'mac80211'
        option path 'platform/10300000.wmac'
        option channel '1'
        option band '2g'
        option htmode 'HT20'
        option disabled '1'

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

config wifi-device 'radio1'
        option type 'mac80211'
        option path 'pci0000:00/0000:00:00.0/0000:01:00.0'
        option channel '36'
        option band '5g'
        option htmode 'VHT80'
        option disabled '0'
        option cell_density '0'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option ssid 'OpenWrt'
        option encryption 'none'

config wifi-iface 'wifinet2'
        option device 'radio1'
        option mode 'sta'
        option ssid 'x'
        option encryption 'psk2'
        option key 'x'
        option network 'wan'

> dhcp
config dnsmasq
        option domainneeded '1'
        option boguspriv '1'
        option filterwin2k '0'
        option localise_queries '1'
        option rebind_protection '1'
        option rebind_localhost '1'
        option local '/lan/'
        option domain 'lan'
        option expandhosts '1'
        option nonegcache '0'
        option authoritative '1'
        option readethers '1'
        option leasefile '/tmp/dhcp.leases'
        option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
        option nonwildcard '1'
        option localservice '1'
        option ednspacket_max '1232'

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'
        option ignore '1'

config dhcp 'wan'
        option interface 'wan'
        option ignore '1'
        list ra_flags 'none'

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

> 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'
        list network 'wan'
        list network 'bridge'

config zone
        option name 'wan'
        option input 'REJECT'
        option output 'ACCEPT'
        option forward 'REJECT'
        option masq '1'
        option mtu_fix '1'
        list network 'bridge'
        list network 'lan'
        list network 'wan'

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 src_ip 'fc00::/6'
        option dest_ip 'fc00::/6'
        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'