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[lwip-devel] [bug #43028] IP_MULTICAST_TTL affects unicast datagrams
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From: |
Joel Cunningham |
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Subject: |
[lwip-devel] [bug #43028] IP_MULTICAST_TTL affects unicast datagrams |
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Date: |
Fri, 05 Dec 2014 15:00:22 +0000 |
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User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:34.0) Gecko/20100101 Firefox/34.0 |
Follow-up Comment #3, bug #43028 (project lwip):
In attached patch, I have added a multicast TTL field to the UDP PCB. I chose
this because it follows the same path of implementation as IP_MULTICAST_IF and
can be conditionally compiled.
I thought of putting the multicast TTL in the IP PCB because TTL and multicast
are an IP layer concepts but ran into the complication where #if LWIP_IGMP
can't be used inside of the #define that declares the IP_PCB
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