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2??????×
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[2] oúμà?a￡??é×ú?a￡?í???°2è?￡?±±??￡????a′ó?§3?°?é?￡?2004?￡
[3] à?ì?￡?í???°2è???ê?￡?±±??￡?μ?×ó1¤òμ3?°?￡?2004?￡
[4] ??áá￡???????￡?í???°2è?1¤???°°?ày·???￡?±±??￡?μ?×ó1¤òμ3?°?é?￡?2003?￡
[5] ò|?tà?￡?í???°2è?1üàíó???ê?·à?¤￡?±±??￡?±±??àí1¤3?°?é?￡?2002?￡
[6] ￡¨?à￡??ó??????￡?oú?í′ó??1a￡oí???°2è??ú?üó??a??·?°?￡?±±??￡????a′ó?§3?°?é?￡?2002?￡
[7] ????￡??ó?üó??a?ü￡?±±??￡?μ?×ó1¤òμ3?°?é?￡?2003?￡
[8] Chris Hare and Karanjit Siyan￡? Internet Firewalls And Network Security ￡?New Ri..