Re: What is port 3 used for?

From: Robert Joosten (robertj@wirehub.nl)
Date: 03/23/02


From: Robert Joosten <robertj@wirehub.nl>
Date: Sat, 23 Mar 2002 12:06:42 +0100

Hi,

> Mar 19 18:01:17 xxxx kernel: Packet log: output REJECT eth1 PROTO=1
> x.x.x.x:3: 204.215.60.153 3 L=92 S=0xC0 I=49567 F=0x0000 T=255 (#34)

PROTO=1 = ICMP. And your from port 3 to port 3 says: port unreachable.

(S)he tried to connect to an port where no service is listening, so your
machine return this informational message.

Check your /etc/protocols...

r,
Rj

.