Apr 23, 2013 · 127.0.0.0 is a network address. Together with mask 255.0.0.0 it gives you a hint that whole class A of addresses starting with 127.*.*.* will contain loopback addresses. Then, YLearn offers a broader overview of naming conventions in general and how to think about them:
The range 127.0.0.0 is reserved for host loopbacks (such as PCs), not routers or switches. The most commonly used address from this range is 127.0.0.1 – if you can’t ping that on a workstation, that means you can’t ping yourself, which means there’s a problem with the TCP/IP install itself. Aug 16, 2015 · The Question. SuperUser reader Sagnik Sarkar wants to know what the difference between 127.0.0.1 and 0.0.0.0 is: I understand that 127.0.0.1 points to localhost and that 0.0.0.0 also does as well (correct me if I am wrong). If you can't ping 127.0.0.1 it sounds like your NIC is failing. Are you able to swap out the network card to test? Did the problem just begin when you started to use Win7? Edit: Based on your comment, have you tried a system restore since the unsuccessfull firewall install? Jul 29, 2018 · 127.0.0.1 is a special purpose IPV4 addresses. It’s often called a localhost address or a loopback address and it’s an address that specifies the local computer (the computer you are currently working on). Whois IP Lookup for 127.0.0.0. Shared Hosting. Linux Shared Hosting Fully featured Linux plans with cPanel, Perl, PHP and more Starts at just | $1.68/mo; Windows Shared Hosting Complete Windows Hosting with Plesk, May 20, 2010 · Address 127.0.0.1 is the test loop back address that exists on every computer. It is reserved for that purpose. If you are having problems with your network, PING 127.0.0.1 is the first thing you do as you quite rightly say, it proves the network card and the TCP/IP software is working correctly.
The range 127.0.0.0 is reserved for host loopbacks (such as PCs), not routers or switches. The most commonly used address from this range is 127.0.0.1 – if you can’t ping that on a workstation, that means you can’t ping yourself, which means there’s a problem with the TCP/IP install itself.
127.0.0.0/8 is simply defined as loopback network by RCF 3330. For more detailed infomations, you can read that document . Basically you can try to ping any IP address, not just 127.0.0.1 and it will work as loopback, they are all mapped on it. Karthikeyan, that private range you are talking about is 172.16.0.0/12 . To test the IP stack on your local host, which IP address would you ping? A. 127.0.0.0 B. 1.0.0.127 C. 127.0.0.1 D. 127.0.0.255 E. 255.255.255.255 % ping -c 1 127.0.0.2 PING 127.0.0.2 (127.0.0.2): 56 data bytes ping: sendto: Network is unreachable ping: wrote 127.0.0.2 64 chars, ret=-1 --- 127.0.0.2 ping statistics --- 1 packets transmitted, 0 packets received, 100.0% packet loss % But on Linux where there is similarly no 127.0.0.2 configured … Ping statistics for 127.0.0.0: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), اما هنگامیکه کارت شبکه سیستم شما Unplug هم باشد، اگر کارت شبکه مشکلی نداشته باشد شما می توانید 127.255.255.254 را Ping کنید.
ping 127.0.0.1 PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.--- 127.0.0.1 ping statistics ---5 packets transmitted, 0 received, 100% packet loss, time 4000ms
The 127.0.0.0/8 is a CDIR netblock reserved by IANA and it's called Loopback. This traffic is routed by kernel to a a special network adapter called loopback adapter. It never hits the OSI Model Layer 1, as any local traffic. For most all OS data travels across the network kernel services until the IP stack. 127.0.0.0/8 is simply defined as loopback network by RCF 3330. For more detailed infomations, you can read that document . Basically you can try to ping any IP address, not just 127.0.0.1 and it will work as loopback, they are all mapped on it. Karthikeyan, that private range you are talking about is 172.16.0.0/12 .