Hello
I am trying to have my Pi 4 (Debian GNU/Linux 12 (bookworm)) working as a router. I think it should be fairly easy.
I just want to route the packets from the eth0 interface to the wlan0 interface and viceversa.
![Image]()
It doesnt work and im stuck.
The Pi is able to ping the wider Internet (and obviously also the Access Point 192.168.1.1).
The PC is able to ping the Pi through the Ethernet cable .
The PC is not able to ping nor the Internet nor the Access Point at 192.168.1.1
It seems to me that the Pi is not forwarding the packets properly.
I believe i am probably missing something very easy. Below i've listed all the things i did.
/etc/dnsmasq.conf → empty file. Everything commented out.
/etc/sysctl.conf → net.ipv4.ip_forward=1
/etc/dhcpcd.conf --> non-existing file
systemd-networkd -> disabled
NetworkManager -> active and running
I am trying to have my Pi 4 (Debian GNU/Linux 12 (bookworm)) working as a router. I think it should be fairly easy.
I just want to route the packets from the eth0 interface to the wlan0 interface and viceversa.
It doesnt work and im stuck.
The Pi is able to ping the wider Internet (and obviously also the Access Point 192.168.1.1).
The PC is able to ping the Pi through the Ethernet cable .
The PC is not able to ping nor the Internet nor the Access Point at 192.168.1.1
It seems to me that the Pi is not forwarding the packets properly.
I believe i am probably missing something very easy. Below i've listed all the things i did.
/etc/dnsmasq.conf → empty file. Everything commented out.
/etc/sysctl.conf → net.ipv4.ip_forward=1
/etc/dhcpcd.conf --> non-existing file
systemd-networkd -> disabled
NetworkManager -> active and running
Code:
#sudo nmcli con add con-name static-ens32 ifname eth0 type ethernet ipv4.method static ip4 192.168.2.1/24 gw4 192.168.1.1 ipv4.dns "192.168.1.1,8.8.8.8"#sudo nmcli conn up static-ens32Code:
#sudo systemctl mask netfilter.service#sudo systemctl status nftables.service → inactiveCode:
#ip routedefault via 192.168.1.1 dev wlan0 proto dhcp src 192.168.1.13 metric 600192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.13 metric 600192.168.2.0/24 dev eth0 proto kernel scope link src 192.168.2.1 metric 100Code:
#ip a2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 2c:cf:67:64:2c:f9 brd ff:ff:ff:ff:ff:ff inet 192.168.2.1/24 brd 192.168.2.255 scope global noprefixroute eth0 valid_lft forever preferred_lft forever inet6 fe80::dce2:9e7a:b8fb:4946/64 scope link noprefixroute valid_lft forever preferred_lft forever3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether 2c:cf:67:64:2c:fa brd ff:ff:ff:ff:ff:ff inet 192.168.1.13/24 brd 192.168.1.255 scope global dynamic noprefixroute wlan0 valid_lft 84637sec preferred_lft 84637sec inet6 fe80::7941:726f:1824:63c2/64 scope link noprefixroute valid_lft forever preferred_lft foreverStatistics: Posted by koller49 — Tue Jan 20, 2026 11:09 am