Re: [dpdk-dev] [RFC] testpmd: use RFC2544 reserved IP addresses

["Iremonger, Bernard" <bernard.iremonger@intel.com>]

Hi Stephen,

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Stephen Hemminger
> Sent: Wednesday, March 21, 2018 3:45 AM
> To: dev@dpdk.org
> Cc: Stephen Hemminger <stephen@networkplumber.org>
> Subject: [dpdk-dev] [RFC] testpmd: use RFC2544 reserved IP addresses
> 
> Change the transmit only side of testpmd to use the IP addresses that are
> marked as reserved for benchmarking by RFC2544 192.18.0.0/27; rather than

RFC2544 seems to use 198.18.0.0 and 198.19.0.0 ?

> the commonly used subnet 192.168.0.0/24 which is likely to used for
> administrative interface.

Typo in the commit message "to used" should be "to be used"

> 
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
>  app/test-pmd/txonly.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c index
> 1f08b6ed37a2..22785bdcbe44 100644
> --- a/app/test-pmd/txonly.c
> +++ b/app/test-pmd/txonly.c
> @@ -43,8 +43,9 @@
>  #define UDP_SRC_PORT 1024
>  #define UDP_DST_PORT 1024
> 
> -#define IP_SRC_ADDR ((192U << 24) | (168 << 16) | (0 << 8) | 1) -#define
> IP_DST_ADDR ((192U << 24) | (168 << 16) | (0 << 8) | 2)
> +/* RFC 2544 reserved IP addresses for benchmarking */ #define
> +IP_SRC_ADDR ((192U << 24) | (18 << 16) | (0 << 8) | 1) #define
> +IP_DST_ADDR ((192U << 24) | (18 << 16) | (0 << 8) | 2)
> 
>  #define IP_DEFTTL  64   /* from RFC 1340. */
>  #define IP_VERSION 0x40
> --
> 2.16.2

>From RFC 2544:
"The single filter case should permit traffic from IP address  198.18.1.2 to IP address 198.19.65.2 and deny all other traffic."

Should the macros be as follows?
#define IP_SRC_ADDR ((198U << 24) | (18 << 16) | (0 << 8) | 1)
#define IP_DST_ADDR ((198U << 24) | (19 << 16) | (0 << 8) | 2)

Regards,

Bernard