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From: | Raphael Zulliger |
Subject: | Re: [lwip-users] IPv6 MTU vs IPv4 MTU |
Date: | Wed, 6 Sep 2017 16:58:30 +0200 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 |
Thanks for your replies.
I'd like to stress again that both, the mentioned Ubuntu and a Windows 10 system respect different MTUs for IPv4 and IPv6 in my case, as shown by Wireshark. I.e. Sending UDP frames, it behaves like this: - IPv4: Frames are being fragmented starting from 1473 Bytes (which makes sense, as MTU=1500 - 20B (Ipv4 header) - 8B (UDP header) = 1472) - IPv6: Frames are being fragmented starting from 1433 Bytes (MTU=1480 (because the router advertisement sets it up like this - which seems to be default in our case) - 40B (Ipv6 header) - 8B (UDP header) = 1432) How shall we proceed? On 06.09.2017 05:24, Joel Cunningham wrote:
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