Hi @Kyungbin Oh , please refer to this article that provides information on how to configure network rules for Azure Cognitive Services resources, including how to manage default network access rules, virtual network rules, and IP network rules: https://learn.microsoft.com/en-us/azure/cognitive-services/cognitive-services-virtual-networks?context=%2Fazure%2Fcognitive-services%2Fopenai%2Fcontext%2Fcontext&tabs=portal
Here is the QuickStart document with the required pre-requisites for using the Chat GPT service: https://learn.microsoft.com/en-us/azure/cognitive-services/openai/chatgpt-quickstart?tabs=command-line&pivots=programming-language-studio
I hope this helps.
Regards,
Vasavi
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