Hi @sandeep_c ,
Thank you for your interest in the NXP MIMXRT product.
About the MIMXRT1170 RTP, you can check the SDK LWIP, it contains the source code:
SDK_2_13_10_MIMXRT1170-EVK\middleware\lwip\contrib\apps\rtp
SDK download link:
https://mcuxpresso.nxp.com/en/builder?hw=MIMXRT1170-EVK
BTW, in the next time, if you have a question, please use your company email to create the case instead of the 3rd part email, then it will have a higher support level.
Wish it helps you!
Best Regards,
kerry