# NAT Inside 2 Linux machines Obkio Speed Test Error **URL:** \ **Category:** Technical Support\ **Created:** [February 1, 2025, 4:04am UTC](https://forums.obkio.com/t/nat-inside-2-linux-machines-obkio-speed-test-error/172 "2025-02-01T04:04:30Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Antony](https://avatars.discourse-cdn.com/v4/letter/a/cab0a1/32.png) [@Antony](https://forums.obkio.com/u/Antony)\ **Post date:** [February 1, 2025, 4:04am UTC](https://forums.obkio.com/t/nat-inside-2-linux-machines-obkio-speed-test-error/172/1 "2025-02-01T04:04:30Z")
Agents have been installed on two Linux machines within the same C-Class subnet. Naturally, since they are on the same local IP range, the two Linux machines can ping each other without any issues. However, when attempting to perform a SpeedTest using Obkio as shown below, an error occurs, and it does not work. I will leave the two Linux machines turned on for about 2 hours. Could you help me resolve the issue?(Now) The firewalls on both Linux machines are completely disabled, and there are no issues with any communication. ![image](https://canada1.discourse-cdn.com/flex036/uploads/obkio/original/1X/16cf4b1690089e301c122939701c7d34c8f8ccbb.png) The libcrypt.so.1 issue was resolved easily, and the Agent is now working properly. ---
**Author:** ![Antony](https://avatars.discourse-cdn.com/v4/letter/a/cab0a1/32.png) [@Antony](https://forums.obkio.com/u/Antony)\ **Post date:** [February 1, 2025, 4:05am UTC](https://forums.obkio.com/t/nat-inside-2-linux-machines-obkio-speed-test-error/172/2 "2025-02-01T04:05:04Z")
![Ping](https://canada1.discourse-cdn.com/flex036/uploads/obkio/original/1X/69e7ec4e25e60c0de73f2a6c63e9b1f5992069ad.jpeg) ---
**Author:** ![Antony](https://avatars.discourse-cdn.com/v4/letter/a/cab0a1/32.png) [@Antony](https://forums.obkio.com/u/Antony)\ **Post date:** [February 1, 2025, 4:05am UTC](https://forums.obkio.com/t/nat-inside-2-linux-machines-obkio-speed-test-error/172/3 "2025-02-01T04:05:38Z")
![Ping2](https://canada1.discourse-cdn.com/flex036/uploads/obkio/original/1X/fe8cedb3a94a488773ee9da533e0393e70d9aecf.jpeg)