On Thu, Apr 30, 2026 at 10:23 PM Lucas Vargas Dias via dev <
[email protected]> wrote:

> Optimize logical flow generation for NAT with distributed gateway ports by
> removing duplicate
> priority 90/91 flows and consolidating ARP/ND flow creation in
> build_lrouter_nat_arp_nd_flow().
> Add chassis residency filtering for l3dgw ports so ARP/ND responses are
> generated only on the
> correct gateway chassis, reducing flow count while preserving behavior.
>
> Signed-off-by: Lucas Vargas Dias <[email protected]>
> ---
>

Hi Lucas,

thank you for the patch, I have a few comments down below.


>  northd/northd.c     | 36 +++++++++++++----------
>  tests/ovn-northd.at | 70 +++++++--------------------------------------
>  2 files changed, 31 insertions(+), 75 deletions(-)
>
> diff --git a/northd/northd.c b/northd/northd.c
> index 0b52db6cf..20546af6c 100644
> --- a/northd/northd.c
> +++ b/northd/northd.c
> @@ -14026,6 +14026,7 @@ build_lrouter_nd_flow(const struct ovn_datapath
> *od, struct ovn_port *op,
>
>  static void
>  build_lrouter_nat_arp_nd_flow(const struct ovn_datapath *od,
> +                              struct ovn_port *op,
>                                struct ovn_nat *nat_entry,
>                                struct lflow_table *lflows,
>                                const struct shash *meter_groups,
> @@ -14033,16 +14034,20 @@ build_lrouter_nat_arp_nd_flow(const struct
> ovn_datapath *od,
>  {
>      struct lport_addresses *ext_addrs = &nat_entry->ext_addrs;
>      const struct nbrec_nat *nat = nat_entry->nb;
> +    if (op && lrp_is_l3dgw(op) && (!op->peer || !op->peer->cr_port)) {
>

The second portion cannot ever happen right?
I think it can be simplified to (op &&  lrp_is_l3dgw(op)).

+        return;
> +    }
>
> +    op = NULL;
>

I would prefer to just pass the NULL directly into
the function then instead of the op = NULL assign.


>      if (nat_entry_is_v6(nat_entry)) {
> -        build_lrouter_nd_flow(od, NULL, "nd_na",
> +        build_lrouter_nd_flow(od, op, "nd_na",
>                                ext_addrs->ipv6_addrs[0].addr_s,
>                                ext_addrs->ipv6_addrs[0].sn_addr_s,
>                                REG_INPORT_ETH_ADDR, NULL, false, 90,
>                                &nat->header_, lflows, meter_groups,
>                                lflow_ref);
>      } else {
> -        build_lrouter_arp_flow(od, NULL,
> +        build_lrouter_arp_flow(od, op,
>                                 ext_addrs->ipv4_addrs[0].addr_s,
>                                 REG_INPORT_ETH_ADDR, NULL, false, 90,
>                                 &nat->header_, lflows,
> @@ -14113,23 +14118,12 @@ build_lrouter_port_nat_arp_nd_flow(struct
> ovn_port *op,
>                                mac_s, &match, false, 92,
>                                &nat->header_, lflows, meter_groups,
>                                lflow_ref);
> -        build_lrouter_nd_flow(op->od, op, "nd_na",
> -                              ext_addrs->ipv6_addrs[0].addr_s,
> -                              ext_addrs->ipv6_addrs[0].sn_addr_s,
> -                              mac_s, NULL, true, 91,

-                              &nat->header_, lflows, meter_groups,
> -                              lflow_ref);
>      } else {
>          build_lrouter_arp_flow(op->od, op,
>                                 ext_addrs->ipv4_addrs[0].addr_s,
>                                 mac_s, &match, false, 92,
>                                 &nat->header_, lflows,
>                                 lflow_ref);
> -        build_lrouter_arp_flow(op->od, op,
> -                               ext_addrs->ipv4_addrs[0].addr_s,
> -                               mac_s, NULL, true, 91,
> -                               &nat->header_, lflows,
> -                               lflow_ref);
>

Those two were the only ones that actually
called "build_lrouter_nd_flow" and "build_lrouter_arp_flow"
with drop=true, so we can remove the drop argument completely.

     }
>
>      ds_destroy(&match);
> @@ -16846,6 +16840,8 @@ build_lrouter_ipv4_default_ttl_expired_flows(
>          ds_clear(&ip_ds);
>          if (lrp_is_l3dgw(op)) {
>              ds_put_cstr(&ip_ds, "ip4.dst <-> ip4.src");
> +            ds_put_format(match, "is_chassis_resident(%s) && ",
> +                                              op->cr_port->json_key);
>

This change is not mentioned in the commit message and
is kind of unrelated, was that done on purpose? If so it should
its own commit and explanation.


>          } else {
>              ds_put_format(&ip_ds, "ip4.dst = ip4.src; ip4.src = %s",
>                            op->lrp_networks.ipv4_addrs[i].addr_s);
> @@ -16922,6 +16918,8 @@ build_lrouter_ipv6_default_ttl_expired_flows(
>          ds_clear(&ip_ds);
>          if (lrp_is_l3dgw(op)) {
>              ds_put_cstr(&ip_ds, "ip6.dst <-> ip6.src");
> +            ds_put_format(match, "is_chassis_resident(%s) && ",
> +                                  op->cr_port->json_key);
>          } else {
>              ds_put_format(&ip_ds, "ip6.dst = ip6.src; ip6.src = %s",
>                            op->lrp_networks.ipv6_addrs[i].addr_s);
> @@ -17141,7 +17139,11 @@ build_lrouter_arp_nd_for_datapath(const struct
> ovn_datapath *od,
>          if (nat_entry->type == SNAT) {
>              continue;
>          }
> -        build_lrouter_nat_arp_nd_flow(od, nat_entry, lflows, meter_groups,
> +        struct ovn_port *op = NULL;
> +        if (nat_entry->l3dgw_port) {
> +            op = nat_entry->l3dgw_port;
> +        }
> +        build_lrouter_nat_arp_nd_flow(od, op, nat_entry, lflows,
> meter_groups,
>

Unless I'm missing something the whole port is NULL, and the if can be
skipped,
instead, the nat_entry->l3dgw_port can be passed directly into the function
call.

                                       lflow_ref);
>      }
>
> @@ -17157,7 +17159,11 @@ build_lrouter_arp_nd_for_datapath(const struct
> ovn_datapath *od,
>          struct ovn_nat *nat_entry =
>              CONTAINER_OF(ovs_list_front(&snat_ip->snat_entries),
>                           struct ovn_nat, ext_addr_list_node);
> -        build_lrouter_nat_arp_nd_flow(od, nat_entry, lflows, meter_groups,
> +        struct ovn_port *op = NULL;
> +        if (nat_entry->l3dgw_port) {
> +            op = nat_entry->l3dgw_port;
> +        }
> +        build_lrouter_nat_arp_nd_flow(od, op, nat_entry, lflows,
> meter_groups,
>                                        lflow_ref);
>

Same here.


>      }
>  }
> diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at
> index 1d7bd6c28..f065dda35 100644
> --- a/tests/ovn-northd.at
> +++ b/tests/ovn-northd.at
> @@ -2185,18 +2185,6 @@ action=(xreg0[[0..47]] = 00:00:00:00:01:00; next;)
>  # Priority 90 flows (per router).
>  AT_CHECK_UNQUOTED([ovn-sbctl lflow-list | grep -E
> "lr_in_ip_input.*priority=90" | grep "arp\|nd" | ovn_strip_lflows], [0],
> [dnl
>    table=??(lr_in_ip_input     ), priority=90   , dnl
> -match=(arp.op == 1 && arp.tpa == 43.43.43.150), dnl
> -action=(eth.dst = eth.src; eth.src = xreg0[[0..47]]; arp.op = 2; /* ARP
> reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]]; arp.tpa <-> arp.spa;
> outport = inport; flags.loopback = 1; output;)
> -  table=??(lr_in_ip_input     ), priority=90   , dnl
> -match=(arp.op == 1 && arp.tpa == 43.43.43.2), dnl
> -action=(eth.dst = eth.src; eth.src = xreg0[[0..47]]; arp.op = 2; /* ARP
> reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]]; arp.tpa <-> arp.spa;
> outport = inport; flags.loopback = 1; output;)
> -  table=??(lr_in_ip_input     ), priority=90   , dnl
> -match=(arp.op == 1 && arp.tpa == 43.43.43.3), dnl
> -action=(eth.dst = eth.src; eth.src = xreg0[[0..47]]; arp.op = 2; /* ARP
> reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]]; arp.tpa <-> arp.spa;
> outport = inport; flags.loopback = 1; output;)
> -  table=??(lr_in_ip_input     ), priority=90   , dnl
> -match=(arp.op == 1 && arp.tpa == 43.43.43.4), dnl
> -action=(eth.dst = eth.src; eth.src = xreg0[[0..47]]; arp.op = 2; /* ARP
> reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]]; arp.tpa <-> arp.spa;
> outport = inport; flags.loopback = 1; output;)
> -  table=??(lr_in_ip_input     ), priority=90   , dnl
>  match=(inport == "lrp" && arp.op == 1 && arp.tpa == \$${lb_as_v4}), dnl
>  action=(eth.dst = eth.src; eth.src = xreg0[[0..47]]; arp.op = 2; /* ARP
> reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]]; arp.tpa <-> arp.spa;
> outport = inport; flags.loopback = 1; output;)
>    table=??(lr_in_ip_input     ), priority=90   , dnl
> @@ -2225,19 +2213,10 @@ match=(inport == "lrp-public" && nd_ns &&
> nd.target == \$${lb_as_v6} && is_chass
>  action=(nd_na { eth.src = xreg0[[0..47]]; ip6.src = nd.target; nd.tll =
> xreg0[[0..47]]; outport = inport; flags.loopback = 1; output; };)
>  ])
>
> -# Priority 91 drop flows (per distributed gw port), if port is not
> resident.
> -AT_CHECK([ovn-sbctl lflow-list | grep -E "lr_in_ip_input.*priority=91" |
> grep "arp\|nd" | ovn_strip_lflows], [0], [dnl
> -  table=??(lr_in_ip_input     ), priority=91   , dnl
> -match=(inport == "lrp-public" && arp.op == 1 && arp.tpa == 43.43.43.150),
> action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , dnl
> -match=(inport == "lrp-public" && arp.op == 1 && arp.tpa == 43.43.43.2),
> dnl
> -action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , dnl
> -match=(inport == "lrp-public" && arp.op == 1 && arp.tpa == 43.43.43.3),
> dnl
> -action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , dnl
> -match=(inport == "lrp-public" && arp.op == 1 && arp.tpa == 43.43.43.4),
> dnl
> -action=(drop;)
> +# Priority 85 drop using the default drop from table lr_in_ip_input.
> +AT_CHECK([ovn-sbctl lflow-list | grep -E "lr_in_ip_input.*priority=85" |
> grep "arp\|nd" | ovn_strip_lflows], [0], [dnl
> +  table=??(lr_in_ip_input     ), priority=85   , dnl
> +match=(arp || nd), action=(drop;)
>  ])
>
>  # Priority 92 ARP/NS responders (per distributed gw port), if port is
> resident.
> @@ -8762,13 +8741,8 @@ check ovn-nbctl --wait=sb sync
>  ovn-sbctl dump-flows DR > lrflows
>  AT_CAPTURE_FILE([lrflows])
>
> -AT_CHECK([grep lr_in_ip_input lrflows | grep arp | grep -e 172.16.1.10 -e
> 10.0.0.10 -e 192.168.0.10 | ovn_strip_lflows], [0], [dnl
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 10.0.0.10), action=(eth.dst = eth.src; eth.src = xreg0[[0..47]];
> arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]];
> arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1; output;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 172.16.1.10), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 192.168.0.10), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport == "DR-S1"
> && arp.op == 1 && arp.tpa == 172.16.1.10), action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport == "DR-S2"
> && arp.op == 1 && arp.tpa == 10.0.0.10), action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport == "DR-S3"
> && arp.op == 1 && arp.tpa == 192.168.0.10), action=(drop;)
> +AT_CHECK([grep lr_in_ip_input lrflows | grep arp | grep -e 172.16.1.10 -e
> 10.0.0.10 -e 192.168.0.10 -e drop| ovn_strip_lflows], [0], [dnl
> +  table=??(lr_in_ip_input     ), priority=85   , match=(arp || nd),
> action=(drop;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport == "DR-S1"
> && arp.op == 1 && arp.tpa == 172.16.1.10 &&
> is_chassis_resident("cr-DR-S1")), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport == "DR-S2"
> && arp.op == 1 && arp.tpa == 10.0.0.10 && is_chassis_resident("cr-DR-S2")),
> action=(eth.dst = eth.src; eth.src = xreg0[[0..47]]; arp.op = 2; /* ARP
> reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]]; arp.tpa <-> arp.spa;
> outport = inport; flags.loopback = 1; output;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport == "DR-S3"
> && arp.op == 1 && arp.tpa == 192.168.0.10 &&
> is_chassis_resident("cr-DR-S3")), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> @@ -8810,12 +8784,8 @@ check ovn-nbctl --wait=sb sync
>  ovn-sbctl dump-flows DR > lrflows
>  AT_CAPTURE_FILE([lrflows])
>
> -AT_CHECK([grep lr_in_ip_input lrflows | grep arp | grep -e 172.16.1.10 -e
> 10.0.0.10 | ovn_strip_lflows], [0], [dnl
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 10.0.0.10), action=(eth.dst = eth.src; eth.src = xreg0[[0..47]];
> arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]];
> arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1; output;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 172.16.1.10), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport == "DR-S1"
> && arp.op == 1 && arp.tpa == 172.16.1.10), action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport == "DR-S2"
> && arp.op == 1 && arp.tpa == 10.0.0.10), action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport == "DR-S3"
> && arp.op == 1 && arp.tpa == 172.16.1.10), action=(drop;)
> +AT_CHECK([grep lr_in_ip_input lrflows | grep arp | grep -e 172.16.1.10 -e
> 10.0.0.10 -e drop| ovn_strip_lflows], [0], [dnl
> +  table=??(lr_in_ip_input     ), priority=85   , match=(arp || nd),
> action=(drop;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport == "DR-S1"
> && arp.op == 1 && arp.tpa == 172.16.1.10 &&
> is_chassis_resident("cr-DR-S1")), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport == "DR-S2"
> && arp.op == 1 && arp.tpa == 10.0.0.10 && is_chassis_resident("cr-DR-S2")),
> action=(eth.dst = eth.src; eth.src = xreg0[[0..47]]; arp.op = 2; /* ARP
> reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]]; arp.tpa <-> arp.spa;
> outport = inport; flags.loopback = 1; output;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport == "DR-S3"
> && arp.op == 1 && arp.tpa == 172.16.1.10 &&
> is_chassis_resident("cr-DR-S3")), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> @@ -8849,12 +8819,6 @@ ovn-sbctl dump-flows DR > lrflows
>  AT_CAPTURE_FILE([lrflows])
>
>  AT_CHECK([grep lr_in_ip_input lrflows | grep arp | grep -e 172.16.1.10 -e
> 10.0.0.10 -e 192.168.0.10 | ovn_strip_lflows], [0], [dnl
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 10.0.0.10), action=(eth.dst = eth.src; eth.src = xreg0[[0..47]];
> arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]];
> arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1; output;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 172.16.1.10), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 192.168.0.10), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport == "DR-S1"
> && arp.op == 1 && arp.tpa == 172.16.1.10), action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport == "DR-S2"
> && arp.op == 1 && arp.tpa == 10.0.0.10), action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport == "DR-S3"
> && arp.op == 1 && arp.tpa == 192.168.0.10), action=(drop;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport == "DR-S1"
> && arp.op == 1 && arp.tpa == 172.16.1.10 &&
> is_chassis_resident("cr-DR-S1")), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport == "DR-S2"
> && arp.op == 1 && arp.tpa == 10.0.0.10 && is_chassis_resident("cr-DR-S2")),
> action=(eth.dst = eth.src; eth.src = xreg0[[0..47]]; arp.op = 2; /* ARP
> reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]]; arp.tpa <-> arp.spa;
> outport = inport; flags.loopback = 1; output;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport == "DR-S3"
> && arp.op == 1 && arp.tpa == 192.168.0.10 &&
> is_chassis_resident("cr-DR-S3")), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> @@ -14245,9 +14209,9 @@ AT_CHECK([grep "lr_in_ip_input" lr0flows |
> ovn_strip_lflows], [0], [dnl
>    table=??(lr_in_ip_input     ), priority=30   , match=(inport ==
> "lr0-sw0" && ip6 && ip.ttl == {0, 1} && !ip.later_frag), action=(icmp6
> {eth.dst <-> eth.src; ip6.dst = ip6.src; ip6.src = fe80::200:ff:fe00:ff01;
> ip.ttl = 254; icmp6.type = 3; /* Time exceeded */ icmp6.code = 0; /* TTL
> exceeded in transit */ outport = "lr0-sw0"; flags.loopback = 1; output; };)
>    table=??(lr_in_ip_input     ), priority=30   , match=(inport ==
> "lr0-sw1" && ip4 && ip.ttl == {0, 1} && !ip.later_frag), action=(icmp4
> {eth.dst <-> eth.src; icmp4.type = 11; /* Time exceeded */ icmp4.code = 0;
> /* TTL exceeded in transit */ ip4.dst = ip4.src; ip4.src = 20.0.0.1; ip.ttl
> = 254; outport = "lr0-sw1"; flags.loopback = 1; output; };)
>    table=??(lr_in_ip_input     ), priority=30   , match=(inport ==
> "lr0-sw1" && ip6 && ip.ttl == {0, 1} && !ip.later_frag), action=(icmp6
> {eth.dst <-> eth.src; ip6.dst = ip6.src; ip6.src = fe80::200:ff:fe00:ff03;
> ip.ttl = 254; icmp6.type = 3; /* Time exceeded */ icmp6.code = 0; /* TTL
> exceeded in transit */ outport = "lr0-sw1"; flags.loopback = 1; output; };)
> -  table=??(lr_in_ip_input     ), priority=31   , match=(inport ==
> "lr0-public" && ip4 && ip4.src == 172.168.0.0/24 && ip.ttl == {0, 1} &&
> !ip.later_frag), action=(icmp4 {eth.dst <-> eth.src; icmp4.type = 11; /*
> Time exceeded */ icmp4.code = 0; /* TTL exceeded in transit */ ip4.dst <->
> ip4.src ; ip.ttl = 254; outport = "lr0-public"; flags.loopback = 1; output;
> };)
>    table=??(lr_in_ip_input     ), priority=31   , match=(inport ==
> "lr0-sw0" && ip4 && ip4.src == 10.0.0.0/24 && ip.ttl == {0, 1} &&
> !ip.later_frag), action=(icmp4 {eth.dst <-> eth.src; icmp4.type = 11; /*
> Time exceeded */ icmp4.code = 0; /* TTL exceeded in transit */ ip4.dst =
> ip4.src; ip4.src = 10.0.0.1 ; ip.ttl = 254; outport = "lr0-sw0";
> flags.loopback = 1; output; };)
>    table=??(lr_in_ip_input     ), priority=31   , match=(inport ==
> "lr0-sw1" && ip4 && ip4.src == 20.0.0.0/24 && ip.ttl == {0, 1} &&
> !ip.later_frag), action=(icmp4 {eth.dst <-> eth.src; icmp4.type = 11; /*
> Time exceeded */ icmp4.code = 0; /* TTL exceeded in transit */ ip4.dst =
> ip4.src; ip4.src = 20.0.0.1 ; ip.ttl = 254; outport = "lr0-sw1";
> flags.loopback = 1; output; };)
> +  table=??(lr_in_ip_input     ), priority=31   ,
> match=(is_chassis_resident("cr-lr0-public") && inport == "lr0-public" &&
> ip4 && ip4.src == 172.168.0.0/24 && ip.ttl == {0, 1} && !ip.later_frag),
> action=(icmp4 {eth.dst <-> eth.src; icmp4.type = 11; /* Time exceeded */
> icmp4.code = 0; /* TTL exceeded in transit */ ip4.dst <-> ip4.src ; ip.ttl
> = 254; outport = "lr0-public"; flags.loopback = 1; output; };)
>    table=??(lr_in_ip_input     ), priority=32   , match=(ip.ttl == {0, 1}
> && !ip.later_frag && (ip4.mcast || ip6.mcast)), action=(drop;)
>    table=??(lr_in_ip_input     ), priority=50   , match=(eth.bcast),
> action=(drop;)
>    table=??(lr_in_ip_input     ), priority=60   , match=(ip4.dst ==
> {10.0.0.1}), action=(drop;)
> @@ -14260,9 +14224,6 @@ AT_CHECK([grep "lr_in_ip_input" lr0flows |
> ovn_strip_lflows], [0], [dnl
>    table=??(lr_in_ip_input     ), priority=83   , match=(ip6.mcast_rsvd),
> action=(drop;)
>    table=??(lr_in_ip_input     ), priority=84   , match=(nd_rs || nd_ra),
> action=(next;)
>    table=??(lr_in_ip_input     ), priority=85   , match=(arp || nd),
> action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 172.168.0.100), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 172.168.0.110), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 172.168.0.120), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
>    table=??(lr_in_ip_input     ), priority=90   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.10 && arp.spa ==
> 172.168.0.0/24 && is_chassis_resident("cr-lr0-public")), action=(eth.dst
> = eth.src; eth.src = xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha =
> arp.sha; arp.sha = xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport;
> flags.loopback = 1; output;)
>    table=??(lr_in_ip_input     ), priority=90   , match=(inport ==
> "lr0-public" && ip6.dst == {fe80::200:ff:fe00:ff02, ff02::1:ff00:ff02} &&
> nd_ns && nd.target == fe80::200:ff:fe00:ff02 &&
> is_chassis_resident("cr-lr0-public")), action=(nd_na_router { eth.src =
> xreg0[[0..47]]; ip6.src = nd.target; nd.tll = xreg0[[0..47]]; outport =
> inport; flags.loopback = 1; output; };)
>    table=??(lr_in_ip_input     ), priority=90   , match=(inport ==
> "lr0-sw0" && arp.op == 1 && arp.tpa == 10.0.0.1 && arp.spa == 10.0.0.0/24),
> action=(eth.dst = eth.src; eth.src = xreg0[[0..47]]; arp.op = 2; /* ARP
> reply */ arp.tha = arp.sha; arp.sha = xreg0[[0..47]]; arp.tpa <-> arp.spa;
> outport = inport; flags.loopback = 1; output;)
> @@ -14275,9 +14236,6 @@ AT_CHECK([grep "lr_in_ip_input" lr0flows |
> ovn_strip_lflows], [0], [dnl
>    table=??(lr_in_ip_input     ), priority=90   , match=(ip6.dst ==
> fe80::200:ff:fe00:ff01 && icmp6.type == 128 && icmp6.code == 0),
> action=(ip6.dst <-> ip6.src; ip.ttl = 255; icmp6.type = 129; flags.loopback
> = 1; next; )
>    table=??(lr_in_ip_input     ), priority=90   , match=(ip6.dst ==
> fe80::200:ff:fe00:ff02 && icmp6.type == 128 && icmp6.code == 0),
> action=(ip6.dst <-> ip6.src; ip.ttl = 255; icmp6.type = 129; flags.loopback
> = 1; next; )
>    table=??(lr_in_ip_input     ), priority=90   , match=(ip6.dst ==
> fe80::200:ff:fe00:ff03 && icmp6.type == 128 && icmp6.code == 0),
> action=(ip6.dst <-> ip6.src; ip.ttl = 255; icmp6.type = 129; flags.loopback
> = 1; next; )
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.100), action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.110), action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.120), action=(drop;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.100 &&
> is_chassis_resident("cr-lr0-public")), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.110 &&
> is_chassis_resident("sw0-port1")), action=(eth.dst = eth.src; eth.src =
> 30:54:00:00:00:03; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> 30:54:00:00:00:03; arp.tpa <-> arp.spa; outport = inport; flags.loopback =
> 1; output;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.120 &&
> is_chassis_resident("cr-lr0-public")), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> @@ -14372,10 +14330,6 @@ AT_CHECK([grep -Fe "172.168.0.110" -e
> "172.168.0.120" -e "10.0.0.3" -e "20.0.0.3
>    table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst ==
> 172.168.0.110 && inport == "lr0-public"), action=(ct_dnat(10.0.0.3);)
>    table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst ==
> 172.168.0.120 && inport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat(20.0.0.3);)
>    table=??(lr_in_gw_redirect  ), priority=100  , match=(ip4.src ==
> 10.0.0.3 && outport == "lr0-public" && is_chassis_resident("sw0-port1")),
> action=(eth.src = 30:54:00:00:00:03; reg5 = 172.168.0.110; next;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 172.168.0.110), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 172.168.0.120), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.110), action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.120), action=(drop;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.110 &&
> is_chassis_resident("sw0-port1")), action=(eth.dst = eth.src; eth.src =
> 30:54:00:00:00:03; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> 30:54:00:00:00:03; arp.tpa <-> arp.spa; outport = inport; flags.loopback =
> 1; output;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.120 &&
> is_chassis_resident("cr-lr0-public")), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
>    table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst ==
> 172.168.0.110 && inport == "lr0-public"), action=(ct_snat;)
> @@ -14431,9 +14385,9 @@ AT_CHECK([grep "lr_in_ip_input" lr0flows |
> ovn_strip_lflows], [0], [dnl
>    table=??(lr_in_ip_input     ), priority=30   , match=(inport ==
> "lr0-sw0" && ip6 && ip.ttl == {0, 1} && !ip.later_frag), action=(icmp6
> {eth.dst <-> eth.src; ip6.dst = ip6.src; ip6.src = fe80::200:ff:fe00:ff01;
> ip.ttl = 254; icmp6.type = 3; /* Time exceeded */ icmp6.code = 0; /* TTL
> exceeded in transit */ outport = "lr0-sw0"; flags.loopback = 1; output; };)
>    table=??(lr_in_ip_input     ), priority=30   , match=(inport ==
> "lr0-sw1" && ip4 && ip.ttl == {0, 1} && !ip.later_frag), action=(icmp4
> {eth.dst <-> eth.src; icmp4.type = 11; /* Time exceeded */ icmp4.code = 0;
> /* TTL exceeded in transit */ ip4.dst = ip4.src; ip4.src = 20.0.0.1; ip.ttl
> = 254; outport = "lr0-sw1"; flags.loopback = 1; output; };)
>    table=??(lr_in_ip_input     ), priority=30   , match=(inport ==
> "lr0-sw1" && ip6 && ip.ttl == {0, 1} && !ip.later_frag), action=(icmp6
> {eth.dst <-> eth.src; ip6.dst = ip6.src; ip6.src = fe80::200:ff:fe00:ff03;
> ip.ttl = 254; icmp6.type = 3; /* Time exceeded */ icmp6.code = 0; /* TTL
> exceeded in transit */ outport = "lr0-sw1"; flags.loopback = 1; output; };)
> -  table=??(lr_in_ip_input     ), priority=31   , match=(inport ==
> "lr0-public" && ip4 && ip4.src == 172.168.0.0/24 && ip.ttl == {0, 1} &&
> !ip.later_frag), action=(icmp4 {eth.dst <-> eth.src; icmp4.type = 11; /*
> Time exceeded */ icmp4.code = 0; /* TTL exceeded in transit */ ip4.dst <->
> ip4.src ; ip.ttl = 254; outport = "lr0-public"; flags.loopback = 1; output;
> };)
>    table=??(lr_in_ip_input     ), priority=31   , match=(inport ==
> "lr0-sw0" && ip4 && ip4.src == 10.0.0.0/24 && ip.ttl == {0, 1} &&
> !ip.later_frag), action=(icmp4 {eth.dst <-> eth.src; icmp4.type = 11; /*
> Time exceeded */ icmp4.code = 0; /* TTL exceeded in transit */ ip4.dst =
> ip4.src; ip4.src = 10.0.0.1 ; ip.ttl = 254; outport = "lr0-sw0";
> flags.loopback = 1; output; };)
>    table=??(lr_in_ip_input     ), priority=31   , match=(inport ==
> "lr0-sw1" && ip4 && ip4.src == 20.0.0.0/24 && ip.ttl == {0, 1} &&
> !ip.later_frag), action=(icmp4 {eth.dst <-> eth.src; icmp4.type = 11; /*
> Time exceeded */ icmp4.code = 0; /* TTL exceeded in transit */ ip4.dst =
> ip4.src; ip4.src = 20.0.0.1 ; ip.ttl = 254; outport = "lr0-sw1";
> flags.loopback = 1; output; };)
> +  table=??(lr_in_ip_input     ), priority=31   ,
> match=(is_chassis_resident("cr-lr0-public") && inport == "lr0-public" &&
> ip4 && ip4.src == 172.168.0.0/24 && ip.ttl == {0, 1} && !ip.later_frag),
> action=(icmp4 {eth.dst <-> eth.src; icmp4.type = 11; /* Time exceeded */
> icmp4.code = 0; /* TTL exceeded in transit */ ip4.dst <-> ip4.src ; ip.ttl
> = 254; outport = "lr0-public"; flags.loopback = 1; output; };)
>    table=??(lr_in_ip_input     ), priority=32   , match=(ip.ttl == {0, 1}
> && !ip.later_frag && (ip4.mcast || ip6.mcast)), action=(drop;)
>    table=??(lr_in_ip_input     ), priority=50   , match=(eth.bcast),
> action=(drop;)
>    table=??(lr_in_ip_input     ), priority=60   , match=(ip4.dst ==
> {10.0.0.1}), action=(drop;)
> @@ -14618,10 +14572,6 @@ AT_CHECK([grep -Fe "172.168.0.110" -e
> "172.168.0.120" -e "10.0.0.3" -e "20.0.0.3
>    table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst ==
> 172.168.0.110 && inport == "lr0-public"), action=(ct_dnat(10.0.0.3);)
>    table=??(lr_in_dnat         ), priority=100  , match=(ip && ip4.dst ==
> 172.168.0.120 && inport == "lr0-public" &&
> is_chassis_resident("cr-lr0-public")), action=(ct_dnat(20.0.0.3);)
>    table=??(lr_in_gw_redirect  ), priority=100  , match=(ip4.src ==
> 10.0.0.3 && outport == "lr0-public" && is_chassis_resident("sw0-port1")),
> action=(eth.src = 30:54:00:00:00:03; reg5 = 172.168.0.110; next;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 172.168.0.110), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=90   , match=(arp.op == 1 &&
> arp.tpa == 172.168.0.120), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.110), action=(drop;)
> -  table=??(lr_in_ip_input     ), priority=91   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.120), action=(drop;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.110 &&
> is_chassis_resident("sw0-port1")), action=(eth.dst = eth.src; eth.src =
> 30:54:00:00:00:03; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> 30:54:00:00:00:03; arp.tpa <-> arp.spa; outport = inport; flags.loopback =
> 1; output;)
>    table=??(lr_in_ip_input     ), priority=92   , match=(inport ==
> "lr0-public" && arp.op == 1 && arp.tpa == 172.168.0.120 &&
> is_chassis_resident("cr-lr0-public")), action=(eth.dst = eth.src; eth.src =
> xreg0[[0..47]]; arp.op = 2; /* ARP reply */ arp.tha = arp.sha; arp.sha =
> xreg0[[0..47]]; arp.tpa <-> arp.spa; outport = inport; flags.loopback = 1;
> output;)
>    table=??(lr_in_unsnat       ), priority=100  , match=(ip && ip4.dst ==
> 172.168.0.110 && inport == "lr0-public"), action=(ct_snat;)
> --
> 2.43.0
>
>
> --
>
>
>
>
> _'Esta mensagem é direcionada apenas para os endereços constantes no
> cabeçalho inicial. Se você não está listado nos endereços constantes no
> cabeçalho, pedimos-lhe que desconsidere completamente o conteúdo dessa
> mensagem e cuja cópia, encaminhamento e/ou execução das ações citadas
> estão
> imediatamente anuladas e proibidas'._
>
>
> * **'Apesar do Magazine Luiza tomar
> todas as precauções razoáveis para assegurar que nenhum vírus esteja
> presente nesse e-mail, a empresa não poderá aceitar a responsabilidade por
> quaisquer perdas ou danos causados por esse e-mail ou por seus anexos'.*
>
>
>
> _______________________________________________
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>
Regards,
Ales
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