internet - 10.x.x.x IP address found in traceroute
2014-02
pkSML
From what I've read, 10.0.0.0 - 10.255.255.255 is a private address space. So I ran a tracert over the internet and I saw an address 10.15.25.98. How is that possible? Thanks in advance!
Tracert Log:
1 192.168.1.1 1ms None
2 ---- Timeout n/a
3 10.15.25.110 13ms None
4 10.15.8.49 16ms None
5 65.46.186.97 11ms ip65-46-186-97.z186
6 216.156.0.185 24ms vb1730.rar3.chicago
7 ---- Timeout n/a
8 216.1.123.54 48ms None
9 66.109.6.154 51ms ae-1-0.cr0.chi30.tb
10 107.14.19.61 62ms None
11 65.29.1.35 58ms be1.clmkohpe02r.mid
Alex McKenzie
Not every ip address on your tracert has to be a public IP.
It might be a router or server on one of the internal nodes of an ISP that you went through on the way to your destination.
heavyd
Your ISP is likely using Carrier Grade NAT.
You can verify this by looking in your home router and checking what the WAN IP address is that you get from your ISP. You've likely been assigned an IP in the 10.0.0.0/8 range as well. If that is the case then those suspicious hops are just the routers that are used to get from your machine to the edge of your ISPs network.
MikeDawg
If you refer to RFC1918 http://www.faqs.org/rfcs/rfc1918.html it states:
3. Private Address Space
The Internet Assigned Numbers Authority (IANA) has reserved the
following three blocks of the IP address space for private internets:
10.0.0.0 - 10.255.255.255 (10/8 prefix)
172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
192.168.0.0 - 192.168.255.255 (192.168/16 prefix)
10.0.0.0/8 is a private IP address.
Aeo
We've been having issues at work with getting quotes from UPS today. After having no luck getting to the UPS support page, I decided to traceroute it. The following is the result I got from it:
Tracing route to ups.com [153.2.224.50] over a maximum of 30 hops:
1 10 ms 9 ms 9 ms 10.84.224.1
2 10 ms 9 ms 11 ms gig1-1.shrnpa1-swt401.neo.rr.com [24.164.102.226]
3 11 ms 20 ms 11 ms tge1-50.yntwoh1-swt402.neo.rr.com [24.164.102.224]
4 11 ms 11 ms 11 ms tge1-3.yntwoh1-swt401.neo.rr.com [24.164.99.229]
5 10 ms 14 ms 12 ms tge1-49.yntwoh2-swt401.neo.rr.com [24.164.111.235]
6 14 ms 11 ms 12 ms tge1-1.alncoh1-swt401.neo.rr.com [24.164.111.237]
7 12 ms 12 ms 13 ms tge1-1.cntnoh2-swt401.neo.rr.com [24.164.111.239]
8 12 ms 11 ms 11 ms tge1-6.ncntoh1-swt401.neo.rr.com [24.164.111.241]
9 12 ms 16 ms 12 ms gig13-0-0.ncntoh1-rtr1.neo.rr.com [24.164.104.89]
10 12 ms 10 ms 17 ms gig14-0-0.ncntoh1-rtr2.neo.rr.com [24.164.104.170]
11 19 ms 19 ms 31 ms tge1-0-1.ar01.clevohek.mwrtn.rr.com [65.25.137.237]
12 22 ms 21 ms 23 ms ae1.tr00.clevohek.mwrtn.rr.com [65.189.140.130]
13 27 ms 32 ms 29 ms ae-3-0.cr0.dca20.tbone.rr.com [66.109.6.70]
14 28 ms 27 ms 48 ms 107.14.19.135
15 28 ms 28 ms 30 ms ix-3-2-2-0.tcore2.AEQ-Ashburn.as6453.net [216.6.87.69]
16 27 ms 29 ms 69 ms 192.205.34.249
17 48 ms 53 ms 51 ms cr1.wswdc.ip.att.net [12.122.220.246]
18 46 ms 51 ms 50 ms cr2.rlgnc.ip.att.net [12.122.3.169]
19 49 ms 49 ms 47 ms cr1.rlgnc.ip.att.net [12.122.30.89]
20 44 ms 45 ms 45 ms cr82.chlnc.ip.att.net [12.123.138.22]
21 47 ms 47 ms 47 ms 12.123.138.141
22 51 ms 53 ms 51 ms 12.249.59.146
23 52 ms 55 ms 55 ms 192.168.112.203
24 * * * Request timed out.
25 * * * Request timed out.
26 * * * Request timed out.
27 * * * Request timed out.
28 * * * Request timed out.
29 * * * Request timed out.
30 * * * Request timed out.
Obviously, this tells me UPS is unreachable at this moment, but do I read it correctly as saying that we are winding up inside someone's private network (or trying to anyway)? I was under the impression that the 192.168.* range was reserved for private networking. Is this incorrect?
Ethabelle
I have the exact same problem. It is their site. Mine has trouble once it hits 12.249.59.146. Downforeveryoneorjustme: http://www.downforeveryoneorjustme.com/ups.com says that it's everyone.