Lastly, when seen in the output of the netstat command which is what you asked for , it means that a given socket is listening on all the available IP addresses the computer has; when a computer has more than one IP address, a socket can be bound only to a specific address and port pair, or to a port and all addresses; if you see an IP address there, it means that socket is listening only on that port and that specific address; if you see 0.
Massimo Massimo What does it mean if you curl 0. Is curl actually contacting and sending a request through available interfaces? How does it know which interface is the right one? I understand how a server might listen on all interfaces, but what is the mechanism for a client to request all interfaces such as when I do curl 0. The OS will very likely block you from doing that, as it doesn't just make sense from the networking perspective.
Trying to ping 0. Lee B's answer is right on, but here's some relevant RFCs in case you're interested. Community Bot 1. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Explaining the semiconductor shortage, and how it might end. Does ES6 make JavaScript frameworks obsolete? Featured on Meta. Now live: A fully responsive profile. Linked Related Hot Network Questions.
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At any time, you can update your settings through the "EU Privacy" link at the bottom of any page. These choices will be signaled globally to our partners and will not affect browsing data. If you are using it to configure an interface, it can instead remove an address from the interface. In the context of a route entry, it usually means the default route. That happens as a result more of the address mask, which selects the bits to compare.
A mask of 0. So when such a route is configured, there is always somewhere for packets to go if configured with a valid destination. But this is not guaranteed.
The 0. In Internet Protocol version 4, the address 0. To give a special meaning to an otherwise invalid piece of data is an application of in-band signaling.
In the context of routing, 0. The source IP address is 0. This relay agent can either be a dedicated host Microsoft Windows Server, for example or a router a Cisco router configured with interface level IP helper statements, for example. At this time, the client has not yet received verification that it is clear to use the IP address.
This document explains how to configure a default route or gateway of last resort. These IP commands are used:. Creating a static route to the network 0.
As with the ip default-network command, using the static route to 0. However, IP routing must be enabled on the router. Note: IGRP does not understand a route to 0. Therefore, it cannot propagate default routes created using the ip route 0.
Use the ip default-network command to have IGRP propagate a default route. Have something to add to the explanation? Sound off in the comments. Want to read more answers from other tech-savvy Stack Exchange users? Check out the full discussion thread here. Browse All iPhone Articles Browse All Mac Articles Do I need one? Browse All Android Articles Browse All Smart Home Articles Customize the Taskbar in Windows Browse All Microsoft Office Articles What Is svchost.
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