Description of problem: We have a local daemon process that publishes multicast heartbeats on 224.101.15.34. The ttl is hard coded into the application(JAVA) and set at 12. If the IPV6 module is enabled the multicast packets TTL field as discovered with ethereal is set to 1. If we turn off the IPV6 module using alias net-pf-10 off in the modprobe.conf file the ttl is then set to 15 which still is not correct but it allows the packet to get past the router. Version-Release number of selected component (if applicable): RHEL 4 Update 3, Fedora Core 3 - 5 How reproducible: Always Steps to Reproduce: 1. Start the daemon process 2. Use Ethereal to sniff outbound traffic on eth0 of the box the daemon is running on 3. Watch the outbound packet leave eth0 and expand the IP header 4. See TTL set to 1 5. Make change listed above to the modprobe.conf - reboot 6. repeat steps 1-3 7. See TTL set to 15 8. Go to distant end (other subnet) see mcast packets arrive as expected Actual results: Ethereal discovers TTL set to 1 Expected results: Ethereal discovers TTL set to 12 (per the hard coding in the application) Additional info: Could find nothing in bugzilla. Not sure what module this belongs in.
Changing component
Can you test on the lastest kernel update (4.5) and indicate if the problem still occurs? Thanks!
Will do.
ping. any update?
again, ping. Any update?
closing. no response