# playback security - Include client Ip in hash generation -want to exclude last digit

**URL:** <https://community.wowza.com/t/playback-security-include-client-ip-in-hash-generation-want-to-exclude-last-digit/53628>\
**Category:** Wowza Streaming Engine\
**Tags:** security\
**Created:** [July 9, 2019, 12:41pm UTC](https://community.wowza.com/t/playback-security-include-client-ip-in-hash-generation-want-to-exclude-last-digit/53628 "2019-07-09T12:41:35Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Silencer](https://avatars.discourse-cdn.com/v4/letter/s/45deac/32.png) [@Silencer](https://community.wowza.com/u/Silencer)\
**Post date:** [July 9, 2019, 12:41pm UTC](https://community.wowza.com/t/playback-security-include-client-ip-in-hash-generation-want-to-exclude-last-digit/53628/1 "2019-07-09T12:41:35Z")

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Hi,

I use wowza secure token v2 + include client ip in hash generation.

Seem work well but some of our mobile internet user said they have a error and stream didn’t load.

I check the log and their last ip digit mismatch with wowza generate ip digit .  
Eg . Client Ip - 1.47.65.156 - wowza hash ip - 1.47.65.130  
Not always happen , but often for mobile internet user.  
So, I want to exclude last digit in hash generation and if first three digits are same , wowza session will allow to connect that IP address.