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author | D.S. Ljungmark <ljungmark@modio.se> | 2015-03-25 09:28:15 +0100 |
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committer | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2016-03-18 01:51:05 +0100 |
commit | 1e50cf3baf32ba323600574b9770105444f8344a (patch) | |
tree | 87134e91c3c906a51a3ab91e0842a59ed1e8ac5c /include | |
parent | f51a7302f4ec08b6f43bfab232471786650829ce (diff) | |
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ipv6: Don't reduce hop limit for an interface
A local route may have a lower hop_limit set than global routes do.
RFC 3756, Section 4.2.7, "Parameter Spoofing"
> 1. The attacker includes a Current Hop Limit of one or another small
> number which the attacker knows will cause legitimate packets to
> be dropped before they reach their destination.
> As an example, one possible approach to mitigate this threat is to
> ignore very small hop limits. The nodes could implement a
> configurable minimum hop limit, and ignore attempts to set it below
> said limit.
Change-Id: I8d9d9cd978b8d5587cc1056dc65683291f0a153a
Signed-off-by: D.S. Ljungmark <ljungmark@modio.se>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
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