[IPV4]: Document icmp_errors_use_inbound_ifaddr sysctl

Taken largely from the commit of the patch that added this feature:

1c2fb7f93c

I'm not sure about the ordering of the options in sysctl.txt,
so I took a wild guess about where it fits.
    
Signed-Off-By: Horms <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Horms 2006-02-02 17:02:25 -08:00 committed by David S. Miller
parent 6f4b6ec1cf
commit 95f7daf1c0

View file

@ -427,6 +427,23 @@ icmp_ignore_bogus_error_responses - BOOLEAN
will avoid log file clutter.
Default: FALSE
icmp_errors_use_inbound_ifaddr - BOOLEAN
If zero, icmp error messages are sent with the primary address of
the exiting interface.
If non-zero, the message will be sent with the primary address of
the interface that received the packet that caused the icmp error.
This is the behaviour network many administrators will expect from
a router. And it can make debugging complicated network layouts
much easier.
Note that if no primary address exists for the interface selected,
then the primary address of the first non-loopback interface that
has one will be used regarldess of this setting.
Default: 0
igmp_max_memberships - INTEGER
Change the maximum number of multicast groups we can subscribe to.
Default: 20