]> err.no Git - linux-2.6/commit
[IPV6]: SNMPv2 "ipv6IfStatsInAddrErrors" counter error
authorLv Liangying <lvly@nanjing-fnst.com>
Tue, 29 Aug 2006 07:00:47 +0000 (00:00 -0700)
committerDavid S. Miller <davem@sunset.davemloft.net>
Wed, 30 Aug 2006 04:22:15 +0000 (21:22 -0700)
commit76d0cc1b64e1686b2b53e081c94142dd99f01ec5
tree0ea9e38ef83928e7b990bf0f732809b36b1b53a4
parent8fb6f732c389847dece403b7470d6d3d2778804a
[IPV6]: SNMPv2 "ipv6IfStatsInAddrErrors" counter error

   When I tested Linux kernel 2.6.17.7 about statistics
"ipv6IfStatsInAddrErrors", found that this counter couldn't increase
correctly. The criteria is RFC2465:
 ipv6IfStatsInAddrErrors OBJECT-TYPE
      SYNTAX      Counter32
      MAX-ACCESS  read-only
      STATUS      current
      DESCRIPTION
         "The number of input datagrams discarded because
         the IPv6 address in their IPv6 header's destination
         field was not a valid address to be received at
         this entity.  This count includes invalid
         addresses (e.g., ::0) and unsupported addresses
         (e.g., addresses with unallocated prefixes).  For
         entities which are not IPv6 routers and therefore
         do not forward datagrams, this counter includes
         datagrams discarded because the destination address
         was not a local address."
      ::= { ipv6IfStatsEntry 5 }

When I send packet to host with destination that is ether invalid
address(::0) or unsupported addresses(1::1), the Linux kernel just
discard the packet, and the counter doesn't increase(in the function
ip6_pkt_discard).

Signed-off-by: Lv Liangying <lvly@nanjing-fnst.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/route.c