# Joining the pool kills my Internet

**URL:** <https://community.ntppool.org/t/joining-the-pool-kills-my-internet/1237>\
**Category:** Pool Development\
**Created:** [April 29, 2019, 12:34am UTC](https://community.ntppool.org/t/joining-the-pool-kills-my-internet/1237 "2019-04-29T00:34:33Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![mlichvar](https://avatars.discourse-cdn.com/v4/letter/m/e79b87/32.png) [@mlichvar](https://community.ntppool.org/u/mlichvar)\
**Post date:** [May 10, 2021, 5:01pm UTC](https://community.ntppool.org/t/joining-the-pool-kills-my-internet/1237/14 "2021-05-10T17:01:07Z")

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Connection tracking is not necessary to redirect a port. You just need to change the address in both directions, i.e. one `-j DNAT` rule and another `-j SNAT` rule. You should also specify the input and output interface with the `-i` and `-o` options as appropriate. I’m sure there are plenty examples out there.

EDIT: Hm, per this post it is really not supposed to work. I probably confused it with something else.

> <https://superuser.com/questions/916090/linux-iptables-dnat-on-incoming-packet-without-conntrack-stateless>

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