Dhcpoffer是广播还是单播
WebJan 12, 2024 · 单播最大的优点:通信是点对点方式,不会影响到广播域的其它主机。. 广播的特点:通信是点对所有点的方式,会影响到广播域里其它所有主机。. 同学们可能没有 … WebMay 16, 2012 · If the 'giaddr' field is zero and the 'ciaddr' field is nonzero, then the server unicasts DHCPOFFER and DHCPACK messages to the address in 'ciaddr'. If 'giaddr' is …
Dhcpoffer是广播还是单播
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WebJun 13, 2024 · 4 人 赞同了该回答. 问题1:. 这里我们发现抓包看到的是 DHCP Offer 单播 报文,大部分书上描述的是,DHCP Offer 是 广播 报文。. 其实 DHCP Offer 报文有可能是单播,也有可能是广播。. DHCP 在报文 … WebDHCP(Dynamic Host Configuration Protocol,动态主机配置协议),前身是BOOTP协议,是一个局域网的网络协议,使用UDP协议工作,统一使用两个IANA分配的端口:67( …
WebJun 5, 2024 · 如果“giaddr”字段为零,“ciaddr”字段为非零,则服务器unicast DHCPOFFER和DHCPACK消息到“ciaddr”中的地址。 如果“giaddr”为零,“ciaddr”为零,广播位被设置, … WebThe DHCPOFFER message specifies the lease period, after which the lease will be deemed to have expired and made available to other clients. However, clients also have the option of renewing an existing lease so that their existing IP address can be retained. The DHCP protocol defines fixed intervals prior to actual lease expiry, at which time a ...
WebFeb 9, 2024 · DHCPOFFER; DHCPDISCOVER; Explanation: When the client receives the DHCPOFFER from the server, it sends back a DHCPREQUEST broadcast message. On receiving the DHCPREQUEST message, the server replies with a unicast DHCPACK message. 2. On a home network, which device is most likely to provide dynamic IP … WebOct 16, 2024 · The DHCPOFFER message contains protocol specific information and an IP configuration. An IP configuration typically includes the following important information: the IP address for the client, the subnet mask of the proposed IP address, the IP address of the default gateway, the DNS domain name, the DNS server address or addresses, and the …
WebJun 10, 2016 · This is a great post, well done with the images, configs, and proof by wireshark. It answers the what happens perfectly, but it doesn't quite answer the why.That is dependent on whether the Client set the DHCP Broadcast flag in the original DHCPDISCOVER message, indicating to the DHCP Server (or Relay, in this case) to …
WebOct 27, 2024 · and then for testing purposes wanted it to connect to another wireless SSID on a different VLAN. I believe to remember that that caused problems with DHCP as well until I realized and disabled the static lease for the main LAN. Yes that is my edge switch...the problem is I am seeing more and more devices going thru this. black and blue vintage shirtWebDec 20, 2024 · Most of my devices make an ACK for an DHCPREQUEST, and then the Windows DHCP immediatly gives them an DHCPOFFER. However some devices like iOS and Chormebooks seems to not follow a standard for thier ACKs for Requests and Offers, as a result, it tajes the device WAY longer to finish these request for an offer, and as a … dave and al sealeyWebStudy with Quizlet and memorize flashcards containing terms like Refer to the exhibit. A network administrator is configuring a router for DHCPv6 operation. Which conclusion can be drawn based on the commands?, Which message does an IPv4 host use to reply when it receives a DHCPOFFER message from a DHCP server?, In which alternative to … black and blue van halen lyricsWebThe answer is that it can be either broadcast or unicast - and in some cases both unicast and broadcast before it reaches the client when an ip helper-address is used. A client … black and blue vintage teeWebDHCP,动态主机配置协议,前身是BOOTP协议,是一个局域网的网络协议,使用UDP协议工作,常用的2个端口:67 (DHCP server),68 (DHCP client)。. DHCP通常被用于局域网 … dave and amber jensen whispering pinesWebMay 11, 2024 · DHCP OFFER单播还是广播取决于DISCOVER的bootp_flags字段,在windows下bootp_flags=0x8000,OFFER为广播,linux下bootp_flags=0x0 dave and amber mafs season 7WebDec 3, 2016 · If using a Cisco Catalyst switch, you're in luck! Issue the following command! debug ip dhcp server packets. ! terminal monitor. ! Restart the PC and watch the request go, and come back. To turn the debub off, issue: undebug ip dhcp server packets. black and blue vinyl