firewall-start question for rt-ac1900p/ac-68u

[zero65]

I just switched from Cable to Fiber and the below firewall rule stopped working:
iptables -I FORWARD -p ALL -i br0 -o eth0 -m iprange --src-range 192.168.2.5-192.168.2.109 -j DROP

I am in 380.68_4.....I am guessing interface is wrong now.....but I have tried ppp0 and that did not work either....So I am confused. Thank you in advanced....

 

[zero65]

I just switched from Cable to Fiber and the below firewall rule stopped working:
iptables -I FORWARD -p ALL -i br0 -o eth0 -m iprange --src-range 192.168.2.5-192.168.2.109 -j DROP

I am in 380.68_4.....I am guessing interface is wrong now.....but I have tried ppp0 and that did not work either....So I am confused. Thank you in advanced....

Any ideas?

 

[ColinTaylor]

Try:

iptables -I FORWARD -i br0 -o $(nvram get wan0_ifname) -m iprange --src-range 192.168.2.5-192.168.2.109 -j DROP