dhcp-relay
语法
dhcp-relay {
active-server-group server-group-name;
authentication {
password password-string;
username-include {
circuit-type;
delimiter delimiter-character;
domain-name domain-name-string;
interface-name;
logical-system-name;
mac-address;
option-60;
option-82 <circuit-id> <remote-id>;
routing-instance-name;
user-prefix user-prefix-string;
stale-timer}
}
dhcpv6 {
active-server-group server-group-name;
authentication {
password password-string;
username-include {
circuit-type;
client-id;
delimiter delimiter-character;
domain-name domain-name-string;
interface-name;
logical-system-name;
relay-agent-interface-id;
relay-agent-remote-id;
relay-agent-subscriber-id;
routing-instance-name;
user-prefix user-prefix-string;
}
dynamic-profile profile-name {
aggregate-clients (merge | replace);
use-primary primary-profile-name;
}
}
}
group group-name {
active-server-group server-group-name;
authentication {
...
}
dynamic-profile profile-name {
...
}
interface interface-name {
exclude;
liveness-detection {
failure-action (clear-binding | clear-binding-if-interface-up | log-only);
method {
bfd {
version (0 | 1 | automatic);
minimum-interval milliseconds;
minimum-receive-interval milliseconds;
multiplier number;
no-adaptation;
transmit-interval {
minimum-interval milliseconds;
threshold milliseconds;
}
detection-time {
threshold milliseconds;
}
session-mode(automatic | multihop | singlehop);
holddown-interval milliseconds;
}
}
}
overrides {
...
}
service-profile dynamic-profile-name;
trace;
upto upto-interface-name;
}
service-profile dynamic-profile-name;
}
overrides {
...
}
relay-agent-interface-id {
...
}
service-profile dynamic-profile-name;
liveness-detection {
failure-action (clear-binding | clear-binding-if-interface-up | log-only);
method {
bfd {
version (0 | 1 | automatic);
minimum-interval milliseconds;
minimum-receive-interval milliseconds;
multiplier number;
no-adaptation;
transmit-interval {
minimum-interval milliseconds;
threshold milliseconds;
}
detection-time {
threshold milliseconds;
}
session-mode(automatic | multihop | singlehop);
holddown-interval milliseconds;
}
}
}
overrides {
allow-snooped-clients;
interface-client-limit number;
no-allow-snooped-clients;
no-bind-on-request;
send-release-on-delete;
}
relay-agent-interface-id {
prefix prefix;
use-interface-description (logical | device):
}
server-group {
server-group-name {
server-ip-address;
}
}
dynamic-profile profile-name {
aggregate-clients (merge | replace);
use-primary primary-profile-name;
}
forward-snooped-clients (all-interfaces | configured-interfaces | non-configured-interfaces);
group group-name {
active-server-group server-group-name;
authentication {
...
}
dynamic-profile profile-name {
...
}
interface interface-name {
exclude;
liveness-detection {
failure-action (clear-binding | clear-binding-if-interface-up | log-only);
method {
bfd {
version (0 | 1 | automatic);
minimum-interval milliseconds;
minimum-receive-interval milliseconds;
multiplier number;
no-adaptation;
transmit-interval {
minimum-interval milliseconds;
threshold milliseconds;
}
detection-time {
threshold milliseconds;
}
session-mode(automatic | multihop | singlehop);
holddown-interval milliseconds;
}
}
}
overrides {
...
}
service-profile dynamic-profile-name;
trace;
upto upto-interface-name;
}
overrides {
...
}
relay-option-82 {
...
}
service-profile dynamic-profile-name;
}
liveness-detection {
failure-action (clear-binding | clear-binding-if-interface-up | log-only);
method {
bfd {
version (0 | 1 | automatic);
minimum-interval milliseconds;
minimum-receive-interval milliseconds;
multiplier number;
no-adaptation;
transmit-interval {
minimum-interval milliseconds;
threshold milliseconds;
}
detection-time {
threshold milliseconds;
}
session-mode(automatic | multihop | singlehop);
holddown-interval milliseconds;
}
}
}
overrides {
allow-snooped-clients;
always-write-giaddr;
always-write-option-82;
client-discover-match <option60-and-option82>;
disable-relay;
interface-client-limit number;
layer2-unicast-replies;
no-allow-snooped-clients;
no-bind-on-request;
proxy-mode;
replace-ip-source-with;
send-release-on-delete;
trust-option-82;
}
relay-option-82 {
circuit-id {
prefix prefix;
use-interface-description (logical | device);
}
}
server-group {
server-group-name {
server-ip-address;
}
}
service-profile dynamic-profile-name;
}
层次结构级别
[edit forwarding-options], [edit vlans forwarding-options]
描述
在交换机上配置扩展动态主机配置协议 （DHCP） 中继和 DHCPv6 中继选项，并使交换机充当 DHCP 中继代理。DHCP 中继代理在 DHCP 客户端和 DHCP 服务器之间转发 DHCP 请求和回复数据包。
DHCP 中继支持附加动态配置文件，还与本地 AAA 服务框架交互，以使用后端身份验证服务器（如 RADIUS）来提供订阅者身份验证。您可以全局附加动态配置文件并配置身份验证支持，也可以为特定接口组配置身份验证支持。
使用 DHCP 中继和语句配置的扩展 DHCP 和 dhcpv6 DHCPv6 中继代理选项与使用该语句配置 bootp 的 DHCP/BOOTP 中继代理选项不兼容。因此，不能同时在路由器上启用扩展 DHCP 或 DHCPv6 中继代理和 DHCP/BOOTP 中继代理。
其余语句将单独解释。
选项
| stale-timer | 需要过时计时器配置才能支持主动-主动租约查询。此配置可优化两个对等方同时获取请求数据包时的同步时间。 |
-
默认值： 20 秒
-
范围： 0 到 100 秒
所需权限级别
接口 — 在配置中查看此语句。
接口控制 — 将此语句添加到配置中。
发布信息
Junos OS 11.3 版中引入的语句。