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Jesper Dangaard Brouer 65324144b5 net: RFC3069, private VLAN proxy arp support 
This is to be used together with switch technologies, like RFC3069,
that where the individual ports are not allowed to communicate with
each other, but they are allowed to talk to the upstream router.  As
described in RFC 3069, it is possible to allow these hosts to
communicate through the upstream router by proxy_arp'ing.

This patch basically allow proxy arp replies back to the same
interface (from which the ARP request/solicitation was received).

Tunable per device via proc "proxy_arp_pvlan":
  /proc/sys/net/ipv4/conf/*/proxy_arp_pvlan

This switch technology is known by different vendor names:
 - In RFC 3069 it is called VLAN Aggregation.
 - Cisco and Allied Telesyn call it Private VLAN.
 - Hewlett-Packard call it Source-Port filtering or port-isolation.
 - Ericsson call it MAC-Forced Forwarding (RFC Draft).

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-07 00:59:09 -08:00
..
9p 9p connect fixes 2009-12-16 12:16:41 -05:00
802 sysctl net: Remove unused binary sysctl code 2009-11-12 02:05:06 -08:00
8021q bonding: allow arp_ip_targets on separate vlans to use arp validation 2010-01-03 21:17:16 -08:00
appletalk Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
atm atm: [br2684] allow routed mode operation again 2009-12-08 20:22:31 -08:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
bluetooth Bluetooth: Fix L2CAP locking scheme regression 2009-12-17 12:07:25 -08:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
can can: Speed up CAN frame receiption by using ml_priv 2010-01-03 21:31:03 -08:00
core fix bonding: allow arp_ip_targets on separate vlans to use arp validation 2010-01-07 00:46:39 -08:00
dcb net: Move && and || to end of previous line 2009-11-29 16:55:45 -08:00
dccp kfifo: rename kfifo_put... into kfifo_in... and kfifo_get... into kfifo_out... 2009-12-22 14:17:56 -08:00
decnet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
dsa netdev: convert pseudo-devices to netdev_tx_t 2009-09-01 01:13:07 -07:00
econet net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
ethernet llc: use dev_hard_header 2009-12-26 20:38:23 -08:00
ieee802154 net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
ipv4 net: RFC3069, private VLAN proxy arp support 2010-01-07 00:59:09 -08:00
ipv6 net: Add rtnetlink init_rcvwnd to set the TCP initial receive window 2009-12-23 14:13:30 -08:00
ipx Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
irda tree-wide: convert open calls to remove spaces to skip_spaces() lib function 2009-12-15 08:53:32 -08:00
iucv const: constify remaining dev_pm_ops 2009-12-15 08:53:25 -08:00
key xfrm: Fix truncation length of authentication algorithms installed via PF_KEY 2009-12-11 15:07:57 -08:00
lapb net: remove NET_RX_BAD and NET_RX_CN* defines 2009-07-05 19:15:35 -07:00
llc llc: fix SAP reference counting w.r.t. socket handling 2009-12-26 20:47:23 -08:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2009-12-30 13:51:29 -08:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2009-12-16 10:33:18 -08:00
netlabel Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
netlink net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
netrom Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
packet packet: dont call sleeping functions while holding rcu_read_lock() 2009-12-15 21:12:21 -08:00
phonet Phonet: reject unsupported sendmsg/recvmsg flags 2010-01-07 00:24:55 -08:00
rds Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2009-12-16 10:32:31 -08:00
rfkill net/rfkill/core.c: work around gcc-4.0.2 silliness 2009-12-07 16:51:23 -05:00
rose Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
rxrpc net: use net_eq to compare nets 2009-11-25 15:14:13 -08:00
sched Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
sctp Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
sunrpc Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6 2009-12-16 10:47:44 -08:00
tipc tipc: use kconfig to limit numeric ranges 2010-01-03 21:31:04 -08:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
wanrouter headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
wimax Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-12-09 19:43:33 -08:00
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2009-12-30 13:51:29 -08:00
x25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-12-08 07:55:01 -08:00
compat.c net: use compat helper functions in compat_sys_recvmmsg 2009-12-11 15:07:57 -08:00
Kconfig net/compat/wext: send different messages to compat tasks 2009-07-15 08:53:39 -07:00
Makefile net: remove redundant sched/ in net/Makefile 2009-07-12 20:11:14 -07:00
nonet.c
socket.c fs: no games with DCACHE_UNHASHED 2009-12-17 10:51:40 -05:00
sysctl_net.c net: sysctl_net - use net_eq to compare nets 2009-03-16 16:23:30 +01:00
TUNABLE