can someone look into below query ?
-Shahid.
On Wed, Apr 3, 2019 at 12:56 PM Shahid Khan via Lists.Fd.Io
<shahidnasimkhan=gmail....@lists.fd.io> wrote:
> Hi,
>
> can someone help us on below query ?
>
> -Shahid.
>
> On Mon, Apr 1, 2019 at 11:45 AM Shahid Khan via Lists.Fd.Io
> <shahidnasimkhan=gmail....@lists.fd.io> wrote:
>
>>
>> I have following query related to SNAT on VPP Release 19.0.1.02
>>
>> following is the code from vpp/src/plugins/nat/in2out.c
>>
>> static inline int
>> snat_not_translate (snat_main_t * sm, vlib_node_runtime_t * node,
>> u32 sw_if_index0, ip4_header_t * ip0, u32 proto0,
>> u32 rx_fib_index0, u32 thread_index)
>> {
>> udp_header_t *udp0 = ip4_next_header (ip0);
>> snat_session_key_t key0, sm0;
>> clib_bihash_kv_8_8_t kv0, value0;
>>
>> key0.addr = ip0->dst_address;
>> key0.port = udp0->dst_port;
>> key0.protocol = proto0;
>> key0.fib_index = sm->outside_fib_index;
>> kv0.key = key0.as_u64;
>>
>> /* NAT packet aimed at external address if */
>> /* has active sessions */
>> if (clib_bihash_search_8_8 (&sm->per_thread_data[thread_index].out2in,
>> &kv0,
>> &value0))
>> {
>> /* or is static mappings */
>> if (!snat_static_mapping_match (sm, key0, &sm0, 1, 0, 0, 0, 0, 0))
>> return 0;
>> }
>> else
>> return 0;
>>
>> if (sm->forwarding_enabled)
>> return 1;
>>
>>
>> return snat_not_translate_fast (sm, node, sw_if_index0, ip0, proto0,
>> rx_fib_index0);
>> }
>>
>> want to understand why above highlighted condition is there in code ?
>>
>> this is causing SNAT to stop working the moment we enable forwarding.
>> what will be impact we comment this condition ?
>>
>> -Shahid.
>>
>>
>>
>>
>>
>>
>>
>> -=-=-=-=-=-=-=-=-=-=-=-
>> Links: You receive all messages sent to this group.
>>
>> View/Reply Online (#12680): https://lists.fd.io/g/vpp-dev/message/12680
>> Mute This Topic: https://lists.fd.io/mt/30851776/1713129
>> Group Owner: vpp-dev+ow...@lists.fd.io
>> Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [
>> shahidnasimk...@gmail.com]
>> -=-=-=-=-=-=-=-=-=-=-=-
>>
> -=-=-=-=-=-=-=-=-=-=-=-
> Links: You receive all messages sent to this group.
>
> View/Reply Online (#12691): https://lists.fd.io/g/vpp-dev/message/12691
> Mute This Topic: https://lists.fd.io/mt/30851776/1713129
> Group Owner: vpp-dev+ow...@lists.fd.io
> Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [
> shahidnasimk...@gmail.com]
> -=-=-=-=-=-=-=-=-=-=-=-
>
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#12723): https://lists.fd.io/g/vpp-dev/message/12723
Mute This Topic: https://lists.fd.io/mt/30851776/21656
Group Owner: vpp-dev+ow...@lists.fd.io
Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
