Hi, I've been trying to work this out for many hours now, reading all kinds of posts and possible solutions, but I just can't get it to work.
I have two routers R1 and R2, connected to an unmanaged switch S1, and R1 is then connected to another router which provides internet access.
I wanted R1 to be the default gateway for R2. R1 is in the 192.168.1.0/24 subnet and it's a DHCP server for devices starting from .100 (limit 150), while R2 is in the 192.168.2.0/24 subnet (with same configs for DHCP).
Therefore, I set the
wan interface in R2 that's connected to R1, as a static address on 192.168.1.3 with 255.255.255.0 mask and 192.168.1.1 as a gateway. 192.168.1.1 also serves as a DNS server in this interface.
By default, the OpenWrt firewall has masquerading enabled, so with this setup I'm able to successfully connect to the Internet and to devices inside the 192.168.1.0/24 subnet. But I also wanted to be able to access the 192.168.2.0/24 subnet from R1. As I'm using masquerading, I'm only able to access R2 from R1 through 192.168.1.3.
So I thought I just needed to set up a static route from R1 to R2, as R1 didn't know how to reach the R2's subnet. Adding the route like this in R1 (through ssh) just works:
ip route add 192.168.2.0/24 via 192.168.1.3
But as I understand, this change isn't permanent, so I have several ways I can do it: Set it up through the web interface (luci), using
uci through the CLI, or directly modifying the
Though, even after rebooting, none of these methods seem to work, as the route seems to be missing when checking with
default via 192.168.0.1 dev wan src 192.168.0.10 192.168.0.0/24 dev wan scope link src 192.168.0.10 192.168.1.0/24 dev br-lan scope link src 192.168.1.1
I'm using OpenWrt 21.02.0 on R1. This is my
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 packet_steering '1' option ula_prefix [redacted] config device option name 'br-lan' option type 'bridge' list ports 'lan1' list ports 'lan2' config interface 'lan' option device 'br-lan' option proto 'static' option ipaddr '192.168.1.1' option netmask '255.255.255.0' option ip6assign '60' config interface 'wan' option device 'wan' option proto 'dhcp' option type 'bridge' option peerdns '0' list dns '18.104.22.168' list dns '22.214.171.124' config interface 'wan6' option device 'wan' option proto 'dhcpv6' option type 'bridge' config route option interface 'lan' option gateway '192.168.1.3' option target '192.168.2.1' option netmask '255.255.255.0'
Tell me if you need to know any more info about the issue.
PD: I left out the
ula_prefix just in case, but I'm not completely sure if it's sensitive or not as I don't know much about IPv6.