udocker container without internet access in termux

[Oscar1640]

I'm using an alpine linux container that has the kallistios sdk prebuilt. but the container does not have access to the internet, I cannot do any action that requires the internet.

Docker image: einsteinx2/dcdev-kos-toolchain

System info:

ID=alpine
VERSION_ID=3.13.2 PRETTY_NAME="Alpine Linux v3.13"