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    SubjectRe: [PATCH net-next 0/3] net: ipv4/ipv6: new option to accept garp/untracked na only if in-network
    On Mon, Jul 11, 2022 at 10:51 AM Jaehee Park <jhpark1013@gmail.com> wrote:
    >
    > The first patch adds an option to learn a neighbor from garp only if
    > the src ip is in the same subnet of addresses configured on the
    > interface. The option has been added to arp_accept in ipv4.
    >
    > The same feature has been added to ndisc (patch 2). For ipv6, the
    > subnet filtering knob is an extension of the accept_untracked_na
    > option introduced in these patches:
    > https://lore.kernel.org/all/642672cb-8b11-c78f-8975-f287ece9e89e@gmail.com/t/
    > https://lore.kernel.org/netdev/20220530101414.65439-1-aajith@arista.com/T/
    >
    > The third patch contains selftests for testing the different options
    > for accepting arp and neighbor advertisements.
    >
    > Jaehee Park (3):
    > net: ipv4: new arp_accept option to accept garp only if in-network
    > net: ipv6: new accept_untracked_na option to accept na only if
    > in-network
    > selftests: net: arp_ndisc_untracked_subnets: test for arp_accept and
    > accept_untracked_na
    >
    > Documentation/networking/ip-sysctl.rst | 48 +--
    > include/linux/inetdevice.h | 2 +-
    > net/ipv4/arp.c | 24 +-
    > net/ipv6/addrconf.c | 2 +-
    > net/ipv6/ndisc.c | 29 +-
    > tools/testing/selftests/net/Makefile | 1 +
    > .../net/arp_ndisc_untracked_subnets.sh | 281 ++++++++++++++++++
    > 7 files changed, 360 insertions(+), 27 deletions(-)
    > create mode 100755 tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh
    >
    > --
    > 2.30.2
    >


    I forgot a few cleanups. I will post a v2 soon.
    Sorry about that!

    Thanks,
    Jaehee

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