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Commit b2cc46a8 authored by Jesper Dangaard Brouer's avatar Jesper Dangaard Brouer Committed by David S. Miller
Browse files

ipv4: Fix rp_filter description in net/ipv4/Kconfig. 



The reverse path filter (rp_filter) will NOT get enabled
when enabling forwarding.  Read the code and tested in
in practice.

Most distributions do enable it in startup scripts.

Signed-off-by: default avatarJesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0117cfab

net/ipv4/Kconfig

+4 −2
Original line number Diff line number Diff line
@@ -35,7 +35,7 @@ config IP_ADVANCED_ROUTER 


	  at boot time after the /proc file system has been mounted.



	  If you turn on IP forwarding, you will also get the rp_filter, which

	  If you turn on IP forwarding, you should consider the rp_filter, which

	  automatically rejects incoming packets if the routing table entry

	  for their source address doesn't match the network interface they're

	  arriving on. This has security advantages because it prevents the
@@ -46,9 +46,11 @@ config IP_ADVANCED_ROUTER 
	  rp_filter on use:



	  echo 1 > /proc/sys/net/ipv4/conf/<device>/rp_filter

	  or

	   and

	  echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter



	  Note that some distributions enable it in startup scripts.



	  If unsure, say N here.



choice