DHCP Proxy Agent를 통한 DHCP 보안 기능 DHCP Proxy Agent는 IP-to-MAC Binding Table을 참조하여 DHCP로 IP할당을 받지 않은 단말이 ARP Request를 보낸 경우 해당 Packet을 Drop시킴 - 해당 단말은 외부망에 접근이 불가능함 IP-to-MAC Binding Table 생성 절차 DHCP IP 할당 ① DHCP Ack의 값을 IP-to-MAC Binding Table에 기록함 IP-to-MAC Binding Table에 아래 항목을 기록함 - Client MAC - Client IP - IP Lease Time - Client와 연결된 DHCP Proxy Agent의 Interface - Expired Time (남은 임대 시간) DHCP IP 임대 시간 연장 ② Client의 T1 Timer가 Expire되면(IP Lease TIme의 절반) Client는 IP 임대기간 연장 절차를 시작함 DHCP Proxy Ag...
![[DHCP] DHCP Proxy Agent - IP-to-Mac Binding Table](https://mblogthumb-phinf.pstatic.net/MjAyMjA4MDVfNTMg/MDAxNjU5NjkyNTgzNjA5.t0175yadJgwdukC2B9EGuEaD3Vjpqzx2EaYBfYUSgYQg.ByAy2AHdl85KcL8snexGcj_fxpsk1hpma3V2z3Ad--Yg.PNG.choiyoonjun111/image.png?type=w2)
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DHCP
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ProxyAgent장점
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ProxyAgent보안
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ProxyAgentIPtoMACBindingTable
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ProxyAgent
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IPtoMACBindingTable생성과정
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IPtoMACBindingTable
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IPtoMAC
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DynamicHostConfigurationProtocol
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DHCPProxyAgent보안
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DHCPProxyAgent
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StaticIPDrop
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