I am using PPPoE to connect to my ISP so I assume I would want to use the ppp0 interface in my iptables rule to stop attacks from the internet?
Code:
# ifconfig
br0 Link encap:Ethernet HWaddr 00:18:F3:71:16:F4
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1063828 errors:0 dropped:0 overruns:0 frame:0
TX packets:1598453 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:138115296 (131.7 MiB) TX bytes:1723494178 (1643.6 MiB)
eth0 Link encap:Ethernet HWaddr 00:18:F3:71:16:F4
inet addr:0.152.180.42 Bcast:255.255.255.255 Mask:0.0.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1717727 errors:0 dropped:0 overruns:0 frame:0
TX packets:2008720 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:1328083847 (1266.5 MiB) TX bytes:801738176 (764.5 MiB)
Interrupt:4 Base address:0x1000
eth1 Link encap:Ethernet HWaddr 00:18:F3:71:16:F4
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1080080 errors:0 dropped:0 overruns:0 frame:2238130
TX packets:1827241 errors:1626 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:159458581 (152.0 MiB) TX bytes:1758998125 (1677.5 MiB)
Interrupt:2 Base address:0x2000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MULTICAST MTU:16436 Metric:1
RX packets:407 errors:0 dropped:0 overruns:0 frame:0
TX packets:407 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:86959 (84.9 kiB) TX bytes:86959 (84.9 kiB)
ppp0 Link encap:Point-Point Protocol
inet addr:64.230.7.74 P-t-P:64.230.197.120 Mask:255.255.255.255
UP POINTOPOINT RUNNING MULTICAST MTU:1492 Metric:1
RX packets:1659459 errors:0 dropped:0 overruns:0 frame:0
TX packets:1736301 errors:0 dropped:1 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:1269441826 (1210.6 MiB) TX bytes:740402487 (706.1 MiB)
vlan0 Link encap:Ethernet HWaddr 00:18:F3:71:16:F4
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2243 errors:0 dropped:0 overruns:0 frame:0
TX packets:213395 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:357124 (348.7 kiB) TX bytes:18654221 (17.7 MiB)
#
Hacksaw.