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Date:	Tue, 20 Oct 2015 01:58:17 +0000
From:	Richard Laing <>
To:	"" <>
Subject: Routing Policy Database Rule 0


We recently found a bug in our code which resulted in rule 0 in the 
routing policy database being deleted, this is a bad thing and the man 
page documentation for "ip rule" indicates

Rule 0 is special. It cannot be deleted or overridden.

which seems entirely reasonable. The code in net/core/fib_rules.c does 
not seem to protect against deletion of this rule and I was wondering if 
there is a reason for this. If not I will submit a patch to address it.

Simply running "ip rule del" shows the issue .

Richard Laing

*Richard Laing*
Software Team Leader*
Allied Telesis Labs*| 27 Nazareth Ave | Christchurch 8024 | New Zealand
Phone: +64 3 3393000 | DDI: +64 3 339 9248 | Web: * 

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