Hah, given the number of times people I have worked with have said "oh,
I'll just use apnic space if we run out of IPs, i don't need to talk to
them anyway", I think it's humorous that someone in China felt the same
way about ARIN space. :)
-Paul
On 06/16/2010 09:01 PM, Jon Lewis wrote:
I just took a closer look at something odd I'd noticed several days
ago. One of our DNS servers was sending crazy amounts of ARP requests
for IPs in the /24 its main IP is in. What I've found is we're
getting hit with DNS requests that look like they're from "typical
internet traffic for someone in China" hitting this DNS server from
IPs in its /24 which are currently not in use (at least on our local
network). It would appear someone in China is using our IP space,
presumably behind a NAT router, and they're leaking some traffic
non-NAT'd.
20:53:41.361734 IP 209.208.121.66.41755 > 209.208.121.126.53: 15939+
A? ns5.z.lxdns.com. (33)
20:53:43.523210 IP 209.208.121.95.39393 > 209.208.121.126.53: 15939+
A? www.nanhutravel.com. (37)
20:53:48.411805 IP 209.208.121.66.33390 > 209.208.121.126.53: 15939+
A? test.csxm.cdn20.com. (37)
20:53:50.557680 IP 209.208.121.135.40056 > 209.208.121.126.53: 15939+
A? rextest2.lxdns.com. (36)
20:53:56.918993 IP 209.208.121.135.37291 > 209.208.121.126.53: 15939+
A? www.51seer.com. (32)
20:54:20.033902 IP 209.208.121.95.37544 > 209.208.121.126.53: 15939+
A? image.dhgate.cdn20.com. (40)
20:54:21.900295 IP 209.208.121.66.35144 > 209.208.121.126.53: 15939+
A? static.xn-app.com. (35)
20:54:27.711853 IP 209.208.121.66.33518 > 209.208.121.126.53: 15939+
A? oa.hanhe.com. (30)
20:54:29.642938 IP 209.208.121.135.41723 > 209.208.121.126.53: 15939+
A? pic1.kaixin001.com. (36)
20:54:32.357414 IP 209.208.121.95.38564 > 209.208.121.126.53: 15939+
A? rr.snyu.com. (29)
20:54:38.901315 IP 209.208.121.95.37840 > 209.208.121.126.53: 15939+
A? edu.163.com. (29)
20:54:39.807385 IP 209.208.121.95.36069 > 209.208.121.126.53: 15939+
A? image.dhgate.cdn20.com. (40)
20:54:40.833778 IP 209.208.121.66.34949 > 209.208.121.126.53: 15939+
A? uphn.snswall.com. (34)
20:54:42.070294 IP 209.208.121.95.38405 > 209.208.121.126.53: 15939+
A? zwgk.cma.gov.cn. (33)
20:54:42.189939 IP 209.208.121.135.36637 > 209.208.121.126.53: 15939+
A? btocdn.52yeyou.com. (36)
20:54:45.767299 IP 209.208.121.95.41405 > 209.208.121.126.53: 15939+
A? img1.kaixin001.com.cn. (39)
20:54:48.595582 IP 209.208.121.66.40099 > 209.208.121.126.53: 15939+
A? rextest2.cdn20.com. (36)
20:54:49.480147 IP 209.208.121.95.42363 > 209.208.121.126.53: 15939+
A? www.dameiren.com. (34)
20:54:50.714200 IP 209.208.121.135.41497 > 209.208.121.126.53: 15939+
A? pic1.kaixin001.com.cn. (39)
20:54:54.116841 IP 209.208.121.135.36828 > 209.208.121.126.53: 15939+
A? i.jstv.com. (28)
I hope they got a good deal on the IP space...and a better deal on
their buggy router.
----------------------------------------------------------------------
Jon Lewis | I route
Senior Network Engineer | therefore you are
Atlantic Net |
_________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
