30 Mar
2014
30 Mar
'14
4:19 a.m.
The same goes for 195.146.144.9.80.
It is a connection from 195.146.144.9 port 80 to > 44.92.21.1 port 80
froma a host called 'sme.sk'.
And there is no such thing like an address doesn't exist. Only that the
hostname doesn't exist.
You get that error if you try to use '195.146.144.9.80' which as I said is
invalid, because it has the port number concatenated to it.
That NAME doesn't exist because it is just a string that does not resolve
into a valid IP address.
73 de Marius, YO2LOJ
-----Original Message-----
From: 44net-bounces+marius=yo2loj.ro(a)hamradio.ucsd.edu
[mailto:44net-bounces+marius=yo2loj.ro@hamradio.ucsd.edu] On Behalf Of
Marius Petrescu
Sent: Sunday, March 30, 2014 11:10
To: 'AMPRNet working group'
Subject: Re: [44net] 195.146.144.9.80 oddness
(Please trim inclusions from previous messages)
_______________________________________________
44.92.21.1.80 is not an IP address (An IPv4 address is 32bit long has
exactly 4 numbers in it, not 5).
It means 44.92.21.1 port 80 in the output of tcpdump.
44.92.21.1 exists and and serves a web page on port 80.
-----Original Message-----
From: 44net-bounces+marius=yo2loj.ro(a)hamradio.ucsd.edu
[mailto:44net-bounces+marius=yo2loj.ro@hamradio.ucsd.edu] On Behalf Of
kb9mwr(a)gmail.com
Sent: Sunday, March 30, 2014 07:54
To: 44net(a)hamradio.ucsd.edu
Subject: [44net] 195.146.144.9.80 oddness
(Please trim inclusions from previous messages)
_______________________________________________
Weirdness:
I don't have a DNS entry for 44.92.21.1.80, as it is non existant on
the network I feed. So how is it that I get constant activity from
it?
Does anyone else get a lot of traffic from that IP address?
tcpdump -vvv -s0 -n proto ipencap
9515068, win 8192, options [mss 1460,nop,wscale 8,nop,nop,sackOK], length 0
195.146.144.9.80 > 44.92.21.1.80: Flags [S], cksum 0x0a01 (correct), seq
186
tcpdump -i eth0 -vvv host amprgw.sysnet.ucsd.edu or ip proto \\icmp
amprgw.sysnet.ucsd.edu > CPE-75-87-213-229.new.res.rr.com: IP (tos
0x0, ttl 81, id 33817, offset 0, flags [DF], proto TCP (6), length 52)
sme.sk.http > hsmm-gw.kb9mwr.ampr.org.http: Flags [S], cksum
0xdff7 (correct), seq 1415087399, win 8192, options [mss
1460,nop,wscale 8,nop,nop,sackOK], length 0
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