1.2.12 dhcp server always-broadcast dhcp server always-broadcast命令用来开启DHCP服务器的广播回应报文功能。 undo dhcp server always-broadcast命令用来恢复缺省情况。 【命令】 dhcp server always-broadcast undo dhcp server always-broadcast 【缺省情况】 DHCP服务器的广播回应报文功能处于关闭状态。DHCP服务器根据...
dhcp server always-broadcast 缺省情况下,DHCP服务器的广播回应报文功能处于关闭状态。DHCP服务器根据请求报文中的广播标志位来决定以广播还是单播的形式发送应答报文。 3.16.2 配置DHCP服务器发送DHCP应答报文不携带Option 60选项 1. 功能简介 如果网络中存在不支持解析Option 60的DHCP客户端,DHCP服务器需要配置DHCP服务...
当server地址池下配置的option60-text和客户端报文携带的option60内容相匹配时,则服务器从该地址池分配地址,否则仍然按照网关分配地址。 (可选)执行命令dhcp reply{unicast-always|broadcast-always},配置DHCP服务器回复的报文类型。 (可选)执行命令vpn-instancevpn-instance-name,配置地址池下的VPN实例。
执行命令client-option60 option60-text,配置server地址池下的option60选项信息。 当server地址池下配置的option60-text和客户端报文携带的option60内容相匹配时,则服务器从该地址池分配地址,否则仍然按照网关分配地址。 (可选)执行命令dhcp reply { unicast-always | broadcast-always },配置DHCP服务器回复的报文类型...
present or commented out, is to act according to the DHCP specification. If OverwriteBroadcastFlag is present then the behavior is to always broadcast the response (= 0) or to always try to unicast the response first (= 1). If unicast fails, then the DHCP Server defaults to broadcast. ...
4.4.4 Use of broadcast and unicast The DHCP client broadcasts DHCPDISCOVER, DHCPREQUEST and DHCPINFORM messages, unless the client knows the address of a DHCP server. The client unicasts DHCPRELEASE messages to the server. Because the client is declining the use of the IP address supplied by...
Broadcast by a DHCP client to a DHCP server, informing the server that the offered IP address is declined because it appears to be in use by another computer. DHCPRelease Sent by a DHCP client to a DHCP server, relinquishing an IP address and canceling the remaining lease. This is unicast...
Normally, ASA would drop the broadcast, but because it is configured to act as a DHCP relay, it forwards the DHCPDISCOVER message as a unicast packet to the DHCP server's IP sourcing from the interface IP that faces the server. In this case, it is the outside interfac...
Broadcast by a DHCP client to a DHCP server, informing the server that the offered IP address is declined because it appears to be in use by another computer. DHCPRelease Sent by a DHCP client to a DHCP server, relinquishing an IP address and canceling the remaining lease. This is unicast...
(DhcpConnEnableBcastFlagToggle = 1). Therefore, Windows Vista gets an IP address by using the BROADCAST flag in DHCP discovery packets. If a router or DHCP server can’t process the DHCP discovery packets, Windows Vista will fail to get an IP address. The fix disables the BROADCAST flag ...