Red Hat Bugzilla – Bug 406931
Fedora-8 sendto(INADDR_BROADCAST) won't udp broadcast, with test code.
Last modified: 2013-01-22 20:43:32 EST
Description of problem: Unable to broadcast short udp datagrams on Fedora 8 using INADDR_BROADCAST or any other netmask. Version-Release number of selected component (if applicable): How reproducible: Compile and execute included test Client and Server on Fedora-8, compare with behavior on RHEL-5. Steps to Reproduce: 1. extract BroadcastBug.tgz, select a NETMASK in ClientServer.hh, make 2. Execute Client (which loops for 2 minutes), then Server (yeah, it looks backwards). Client should respond if it receives broadcast message. 3. Try RHEL 4 or 5 first to see expected result, then repeat on Fedora-8. Actual results: RHEL 4 and 5 (cleverly disguised as CentOS) work as expected, multiple Clients recieve messages broadcast from Server. I am unable to make Fedora-8 broadcast at all; no broadcast messages are received. (I'm surprised to see this, but if there's a configuration problem on my Fedora-8 box I haven't found it.) Expected results: I think udp datagram broadcasts should behave the same on all platforms. Additional info:
Created attachment 274291 [details] gzipped tarfile of BroadcastBug directory, with C source, Makefile, and README
sendto etc. are just simple wrappers around kernel syscalls, so this has nothing to do with glibc.
Did you test: RHEL client and F8 server RHEL server and F8 client Also, run wireshark/tcpdump on both client and server and look at what gets sent and received.
Sorry, can't help with that at present. I've but one machine at home, and one at the office, where I've unable to install Fedora-8 as a Xen guest. I'll let you know when I can do more. Thanks! In reply to comment #3) > Did you test: > > RHEL client and F8 server > RHEL server and F8 client > > Also, run wireshark/tcpdump on both client and server and look at what gets sent > and received.
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Fedora 8 changed to end-of-life (EOL) status on 2009-01-07. Fedora 8 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. Thank you for reporting this bug and we are sorry it could not be fixed.