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| Started by | lightaiyee@gmail.com |
|---|---|
| First post | 2013-08-23 05:32 -0700 |
| Last post | 2013-08-24 13:33 +0200 |
| Articles | 5 — 4 participants |
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How to send broadcast IP address to network? lightaiyee@gmail.com - 2013-08-23 05:32 -0700
Re: How to send broadcast IP address to network? lightaiyee@gmail.com - 2013-08-23 05:36 -0700
Re: How to send broadcast IP address to network? Neil Cerutti <neilc@norwich.edu> - 2013-08-23 13:05 +0000
Re: How to send broadcast IP address to network? Chris Angelico <rosuav@gmail.com> - 2013-08-24 00:11 +1000
Re: How to send broadcast IP address to network? Irmen de Jong <irmen.NOSPAM@xs4all.nl> - 2013-08-24 13:33 +0200
| From | lightaiyee@gmail.com |
|---|---|
| Date | 2013-08-23 05:32 -0700 |
| Subject | How to send broadcast IP address to network? |
| Message-ID | <659fa544-4fd6-406c-ad44-aa155e2c0e40@googlegroups.com> |
I want to send a broadcast packet to all the computers connected to my home router. The following 2 lines of code do not work; host="192.168.0.102" s.connect((host, port)) Can someone advise? Thank you.
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| From | lightaiyee@gmail.com |
|---|---|
| Date | 2013-08-23 05:36 -0700 |
| Message-ID | <b0ac44b7-8680-4bf3-a381-b010ee254cdf@googlegroups.com> |
| In reply to | #52884 |
Some typo mistake. Should be host="192.168.0.255", not "192.168.0.102" On Friday, August 23, 2013 8:32:10 PM UTC+8, light...@gmail.com wrote: > I want to send a broadcast packet to all the computers connected to my home router. > > > > The following 2 lines of code do not work; > > host="192.168.0.102" > > s.connect((host, port)) > > > > Can someone advise? > > > > Thank you.
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| From | Neil Cerutti <neilc@norwich.edu> |
|---|---|
| Date | 2013-08-23 13:05 +0000 |
| Message-ID | <b7p51fFhkssU2@mid.individual.net> |
| In reply to | #52885 |
On 2013-08-23, lightaiyee@gmail.com <lightaiyee@gmail.com> wrote: >> The following 2 lines of code do not work; >> >> host="192.168.0.255" >> host="192.168.0.102" >> s.connect((host, port)) Traceback (most recent call last): File "<stdin>", line 1, in <module> NameError: name 's' is not defined I bet that's not the same traceback you get. Furthermore, port isn't defined either. -- Neil Cerutti
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| From | Chris Angelico <rosuav@gmail.com> |
|---|---|
| Date | 2013-08-24 00:11 +1000 |
| Message-ID | <mailman.165.1377267420.19984.python-list@python.org> |
| In reply to | #52884 |
On Fri, Aug 23, 2013 at 10:32 PM, <lightaiyee@gmail.com> wrote: > I want to send a broadcast packet to all the computers connected to my home router. > > The following 2 lines of code do not work; > host="192.168.0.102" > s.connect((host, port)) > > Can someone advise? You can't establish a TCP socket with a broadcast address. That just doesn't work. Can you please show a whole lot more context so we can see what's happening here? Thanks! ChrisA
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| From | Irmen de Jong <irmen.NOSPAM@xs4all.nl> |
|---|---|
| Date | 2013-08-24 13:33 +0200 |
| Message-ID | <521899fb$0$16011$e4fe514c@news.xs4all.nl> |
| In reply to | #52884 |
On 23-8-2013 14:32, lightaiyee@gmail.com wrote:
> I want to send a broadcast packet to all the computers connected to my home router.
>
> The following 2 lines of code do not work;
> host="192.168.0.102"
> s.connect((host, port))
>
> Can someone advise?
>
> Thank you.
>
Use UDP (datagram) sockets. Use sendto() and not connect(), because UDP is
connectionless. This should work:
import socket
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
sock.sendto(b"thedata", 0, ("<broadcast>", 9999)) # 9999 = port
sock.close()
Irmen
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