Hello, I am a noob who just installed the following:
root@OpenWrt:~# ubus call system board
{
"kernel": "6.6.73",
"hostname": "OpenWrt",
"system": "ARMv8 Processor rev 4",
"model": "Linksys E8450 (UBI)",
"board_name": "linksys,e8450-ubi",
"rootfs_type": "squashfs",
"release": {
"distribution": "OpenWrt",
"version": "24.10.0",
"revision": "r28427-6df0e3d02a",
"target": "mediatek/mt7622",
"description": "OpenWrt 24.10.0 r28427-6df0e3d02a",
"builddate": "1738624177"
}
}
I am currently on CachyOS (similar to Arch)
I set a strong root password via the web interface, and entered the following commands from this guide:
ssh root@192.168.1.1
uci show wireless → radio0, radio1 2.4GHz and 5GHz as expected for E8450 AFAIK. Proceeded to set the country to Canada (my place of residence)
uci set wireless.radio0.country='CA'
uci set wireless.radio1.country='CA'
uci set wireless.radio0.disabled='0'
uci set wireless.radio1.disabled='0'
uci commit wireless
wifi reload
Then I waited a few minutes as instructed for scanning.
Via the web interface, I then edited both wifi networks to have WPA3-SAE encryption (is that the correct choice?) and set the password. I did not touch any other setting than what I described here.
TL;DR: I don't know the first thing about networking, just wanted to check in with you guys if there was anything I messed up or failed to configure. I just want to do my normie browsing on a wifi network I can set and forget like a normal router, with normie-tier security. So far the network seems to function well enough with the expected speed. Is there any maintenance I should do in the future or obvious stuff an IT expert would know to check for? Is the firewall properly setup? Unknown unknowns basically.
root@OpenWrt:~# cat /etc/config/network
config interface 'loopback'
option device 'lo'
option proto 'static'
option ipaddr '[redacted]'
option netmask '[redacted]'
config globals 'globals'
option ula_prefix '[redacted]'
config device
option name 'br-lan'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
list ports 'lan4'
config interface 'lan'
option device 'br-lan'
option proto 'static'
option ipaddr '[redacted]'
option netmask '[redacted]'
option ip6assign '60'
config interface 'wan'
option device 'wan'
option proto 'dhcp'
config interface 'wan6'
option device 'wan'
option proto 'dhcpv6'
root@OpenWrt:~# cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option phy 'wl0'
option band '2g'
option channel '1'
option htmode 'HT20'
option disabled '0'
option country 'CA'
option cell_density '0'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt'
option encryption 'sae'
option key '[redacted]'
option ocv '0'
config wifi-device 'radio1'
option type 'mac80211'
option phy 'wl1'
option band '5g'
option channel '36'
option htmode 'HE80'
option disabled '0'
option country 'CA'
option cell_density '0'
config wifi-iface 'default_radio1'
option device 'radio1'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt' [kept the default, may change later]
option encryption 'sae'
option key '[redacted]'
option ocv '0'
root@OpenWrt:~# cat /etc/config/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 cachesize '1000'
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'
option filter_aaaa '0'
option filter_a '0'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv4 'server'
option dhcpv6 'server'
option ra 'server'
option ra_slaac '1'
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'
root@OpenWrt:~# cat /etc/config/firewall
config defaults
option syn_flood 1
option input REJECT
option output ACCEPT
option forward REJECT
# Uncomment this line to disable ipv6 rules
# option disable_ipv6 1
config zone
option name lan
list network 'lan'
option input ACCEPT
option output ACCEPT
option forward ACCEPT
config zone
option name wan
list network 'wan'
list network 'wan6'
option input REJECT
option output ACCEPT
option forward REJECT
option masq 1
option mtu_fix 1
config forwarding
option src lan
option dest wan
# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
option name Allow-DHCP-Renew
option src wan
option proto udp
option dest_port 68
option target ACCEPT
option family ipv4
# Allow IPv4 ping
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
# Allow DHCPv6 replies
# see https://github.com/openwrt/openwrt/issues/5066
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 [redacted]
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
# Allow essential incoming IPv6 ICMP traffic
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
# Allow essential forwarded IPv6 ICMP traffic
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
### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
# option src lan
# option src_ip [redacted]
# option dest wan
# option proto tcp
# option target REJECT
# block a specific mac on wan
#config rule
# option dest wan
# option src_mac [redacted]
# option target REJECT
# block incoming ICMP traffic on a zone
#config rule
# option src lan
# option proto ICMP
# option target DROP
# port redirect port coming in on wan to lan
#config redirect
# option src wan
# option src_dport 80
# option dest lan
# option dest_ip [redacted]
# option dest_port 80
# option proto tcp
# port redirect of remapped ssh port ([redacted]) on wan
#config redirect
# option src wan
# option src_dport 22001
# option dest lan
# option dest_port 22
# option proto tcp
### FULL CONFIG SECTIONS
#config rule
# option src lan
# option src_ip [redacted]
# option src_mac [redacted]
# option src_port 80
# option dest wan
# option dest_ip [redacted]
# option dest_port 120
# option proto tcp
# option target REJECT
#config redirect
# option src lan
# option src_ip [redacted]
# option src_mac [redacted]
# option src_port 1024
# option src_dport 80
# option dest_ip [redacted]
# option dest_port 120
# option proto tcp