dslreports logo
 
    All Forums Hot Topics Gallery
spc
Search similar:


uniqs
730

lazy
@192.171.46.x

lazy

Anon

Carrier-grade NAT

has teksavvy started to use Carrier-grade NAT as my external IP is a 192.

JenSuisUn
Premium Member
join:2006-02-23
Chatham, ON

JenSuisUn

Premium Member

You are receiving specifically 192.171, which is easily confused for the 192.168 range.

You have received a public IP and not a Private IP address.

»whois.arin.net/rest/net/ ··· -0-1/pft

Regards,
Martin

Calero27
join:2014-01-13
Chatham, ON

Calero27 to lazy

Member

to lazy
What is the second number. The 192. is not all reserved for private use. Example 192.0.x.x is a public IP address.

TSI Gabe
Router of Packets
Premium Member
join:2007-01-03
Gatineau, QC

TSI Gabe

Premium Member

192.171.32.0/19 which has been assigned by ARIN to TekSavvy does not belong to RFC1918 (Private IP Space)

For reference private IP subnets are as follows

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)

»tools.ietf.org/html/rfc1918

KaylaIT
FTTB
Premium Member
join:2012-07-26
Calgary, AB

KaylaIT to lazy

Premium Member

to lazy
We only need to be worried about CG-NAT if the IP we are assigned is in the 100.64.0.0/10 range.

sbrook
Mod
join:2001-12-14
Ottawa

sbrook

Mod

Actually, a private network can use ANY IP under the strict proviso that it is not routed onto the public network. It certainly can create a lot of confusion if the private IP network uses public IP addresses as has been noted by Rogers using IPs normally allocated to the US DoD in the 7.*.*.* address space. It certainly can cause routing problems to use non-RFC1918 IPs unless the ISP allocating them is extremely diligent in handling packets to/from these IPs!

KaylaIT
FTTB
Premium Member
join:2012-07-26
Calgary, AB

KaylaIT

Premium Member

Technically yes however this would be poor practice as if someone uses IP's in a public range for their local network they will not be able to reach any servers in that range that exist on the internet.