Questions tagged [loopback]
For questions about loopback interfaces on network devices. For instance, you want to configure routing on your layer 3 switch and for that you want to configure a loopback interface.
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Why can I ping IP addresses from 127.0.0.1 to 127.255.255.254?
I thought that the loopback IP address of my machine is 127.0.0.1.
I do not understand why am I able to ping IP addresses until 127.255.255.254.
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How is harpinning (NAT loopback) used in practice?
I have never had to use hairpinning in the past and so far, reading its description on Wikipedia, I don't see many use cases for this technology, apart from some requests from selected users inside ...
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What's the relationship of a Router with its loopback interface in logic?
I have a Router1 with a loopback 0 connected to the Router2:
the interface brief is bellow:
Router1>show ip interface brief
Interface IP-Address OK? Method Status ...
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Whats's the function of a loopback interface in routing protocols?
So I've got this task where I have to setup a virtual network with an OSPF routing protocol. I firstly ignored this loopback interface I had to configure on the routers since it didn't do any ...
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IP address that can not be reached from outside of device
I am sorry if this is a silly question, but I am developing an application that should connect to itself over sockets, but to make it secure it should only be reachable from local device. I believe I ...
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Loopback Interface speed is 10 Mbps but Incoming and Outgoing Traffic is in Gbps
I am writing a script which mails interface data to network admin. For this I'm using LibreNMS and RRDTool to gather data. On inspecting one of the loopback interfaces, I found that the interface ...