> For the complete documentation index, see [llms.txt](https://krjaeh0.gitbook.io/j-log/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://krjaeh0.gitbook.io/j-log/network/security/asav.md).

# ASAv

* 방화벽 가상화 장치
* cisco 라이선스 필요 (유료)
* 라우터 기능 + 방화벽 기능 수행

## Management Interface

* 네트워크 구축에 사용되지 않는 포트
* 네트워크 구축 후 별도 관리 장치를 연결해 방화벽 장치를 관리할 때 사용함

## firewall Rule

* 보안 레벨이 낮은 네트워크에서 높은 네트워크로 향하는 모든 트래픽은 차단된다.
* 반대의 경우는 허용하나 icmp 패킷은 제외된다. (PingOfDeath: [PingOfDeath.md](broken://pages/2e137febbfc5cdaa070aedfecd5890f7c289dbeb))


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