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[lwip-devel] [bug #53696] Bug in MTU value validation (case: ND6_OPTION_
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From: |
Simon Goldschmidt |
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Subject: |
[lwip-devel] [bug #53696] Bug in MTU value validation (case: ND6_OPTION_TYPE_MTU) |
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Date: |
Thu, 19 Apr 2018 02:31:39 -0400 (EDT) |
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User-agent: |
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0 |
Follow-up Comment #1, bug #53696 (project lwip):
I see additional problems here:
- I don't think that IPv6 RA messages should interfere with the MTU used for
IPv4
- I think we should somehow check that this MTU does not get larger than the
netif supports
In other words, we should probably store the MTU received through RA at a
different place and use the minimum of this and netif->mtu when calculating
packet sizes.
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