Mailinglist Archive: opensuse (1470 mails)

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Re: [opensuse] What is the meaning of these firewall log entries?
  • From: "Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>
  • Date: Fri, 12 Feb 2016 15:22:18 +0100 (CET)
  • Message-id: <alpine.LSU.2.20.1602121455210.32684@Grypbagne.inyvabe>
Hash: SHA1

On Thursday, 2016-02-11 at 11:06 -0800, John Andersen wrote:
On 02/11/2016 05:48 AM, Marcus Meissner wrote:
On Thu, Feb 11, 2016 at 02:43:27PM +0100, Carlos E. R. wrote:

It is a ICMP message. TYPE=3 CODE=3 is "destination/port not reachable".

It was caused by a connection from to in UDP mode,
port 6666:
[SRC= DST= LEN=343 TOS=0x00 PREC=0x00 TTL=64
ID=3128 PROTO=UDP SPT=6666 DPT=6666 LEN=323 ]

Could be the firewall dropping icmp on that interface, not realizing it is
needed by some
packages. Dropping ICMP at machines that are behind your main internet
firewall is often
less than productive.

Ah. I see... but I think that ICMP is allowed on all my computers. Or so I thought.

Ok, added an entry for it in the firewall of both machines. I'll see how it goes now...

- -- Cheers,
Carlos E. R.
(from 13.1 x86_64 "Bottle" at Telcontar)

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