that在下列从句中的用法是什么？

Question

we need to setup a static IP address on the computer that the ports are goingto be forwarded to.
If that IP address changed, then that port-forwarding configuration would not besetup properly.

Answer 1

为您解答
that引导定语从句，that在从句中做宾语。追答

that代的是the static IP adress
句子相当于
the ports are going to be forwarded to the static IP adress

追问

第二句呢

追答

定语，那个。

回答完毕，满意请采呐。

追问

能详细点吗

追答

that在下列从句中的用法是什么？we need to setup a static IP address on the computer that （为您解答
that引导定语从句，that在从句中做宾语。）the ports are goingto be forwarded to.
If that （定语）IP address（is） changed, then that（定语） port-forwarding configuration would not besetup properly.

只有一个从句。

第二句是定语，不是从句

Answer 2

同位语从句。解释IP address的内容是什么。