### What this PR does / why we need it?
fix import error for get_ip() in vllm main branch
### Does this PR introduce _any_ user-facing change?
N
### How was this patch tested?
- vLLM version: v0.11.0
- vLLM main:
2918c1b49c
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Signed-off-by: pz1116 <zpbzpb123123@gmail.com>