說明:
AVAST!防毒軟體病毒資料庫與程式更新的IP(200多個IP),故使用IP區段列表如下:
74.54.24.0/255.255.255.0
74.54.25.0/255.255.255.0
74.126.38.0/255.255.255.0
74.126.130.0/255.255.255.0
74.53.76.0/255.255.255.0
209.62.112.0/255.255.255.0
74.54.130.0/255.255.255.0
74.54.138.0/255.255.255.0
75.126.203.0/255.255.255.0
74.86.245.0/255.255.255.0
75.176.120.0/255.255.255.0
67.18.159.0/255.255.255.0
74.86.232.0/255.255.255.0
75.126.53.0/255.255.255.0
74.86.125.0/255.255.255.0
74.126.130.0/255.255.255.0
74.53.76.0/255.255.255.0
74.86.96.0/255.255.255.0
75.125.189.0/255.255.255.0
74.86.125.0/255.255.255.0
75.125.221.0/255.255.255.0
216.12.217.0/255.255.255.0
75.125.118.0/255.255.255.0
209.62.9.0/255.255.255.0
75.126.130.0/255.255.255.0
74.54.75.0/255.255.255.0
75.125.186.0/255.255.255.0
75.125.190.0/255.255.255.0
75.125.246.0/255.255.255.0
75.125.223.0/255.255.255.0
67.19.112.0/255.255.255.0
75.125.53.0/255.255.255.0
74.54.19.0/255.255.255.0
以上IP區段開放 80 Port 服務即可,提供給有需要開放防火牆對外更新AVAST!防毒軟體的用戶.