[23:20]<axufj>hi, someone have any idea about "invalid icmp type 3" errors in dmesg output ? [23:20]<2rfju>hi all [23:20]<2rfju>chulo, looks like someone sent you an icmp packet with the invalid type nr.3 ;) [23:20]<axufj>yes, but its normal ? [23:22]<2rfju>no, someone seems to fingerprint and/or scan you [23:23]<2rfju>or someone got a seriously broken ip stack on his machine, but most probably its a scan [23:23]<2rfju>hm... type 3 is according to rfc792 "destination unreachable" [23:23]<2rfju>whats the exact error you get? [23:24]<axufj>here: 24.232.249.1 sent an invalid ICMP type 3, code 3 error to a broadcast: 24.232.249.255 on eth1 [23:27]<2rfju>if it doesnt happen too often, its nothing to worry about [23:27]<2rfju>24.232.249.1 is most likely a router of your ISP [23:28]<axufj>i get the error several times to the day [23:29]<axufj>balou: excuse that does not speak much, but I do not speak the English too much well. [23:32]<2rfju>the ip 24.232.249.1 has a name of GW-249.fibertel.com.ar, so this means it is a computer who belongs to cablevision. it maybe has a wrong configuration, you can ignore these warning messages [23:34]<axufj>balou: ok, i appreciate it your help. thanks! [23:34]<2rfju>you're welcome [23:34]<axufj>:)
