1、在配置好相关参数后，可以ping通网站，但是发现网页打开网络很忙，这时候可通过如下方法解决：

set security flow tcp-mss all-tcp mss 1400

2、拨号配置：


set interfaces fe-0/0/2 unit 0 encapsulation ppp-over-ether (封装协议)
set interfaces pp0 unit 0 ppp-options pap default-password "$9$2CoDHQznu01wYiqPQ6/MWLxdw"
set interfaces pp0 unit 0 ppp-options pap local-name "[email protected]"
set interfaces pp0 unit 0 ppp-options pap local-password "$9$VSsaGmPT9CpNdZDHmQzrlKMXN"
set interfaces pp0 unit 0 ppp-options pap passive
set interfaces pp0 unit 0 pppoe-options underlying-interface fe-0/0/2.0
set interfaces pp0 unit 0 pppoe-options idle-timeout 0
set interfaces pp0 unit 0 pppoe-options auto-reconnect 1
set interfaces pp0 unit 0 pppoe-options client
set interfaces pp0 unit 0 family inet negotiate-address
set routing-options static route 0.0.0.0/0 next-hop pp0.0
set security zones security-zone untrust interfaces fe-0/0/2.0
set security zones security-zone untrust interfaces pp0.0

3、# juniper srx防火墙status闪红灯

run request system autorecovery state save

4、新增vlan100

set vlans vlan100 vlan-id 100
set vlans vlan100 l3-interface vlan.100 

#（定义vlan100虚拟接口并开启3层配置功能）
set interfaces vlan unit 100 family inet address 192.168.100.1/24

#（配置vlan100的IP地址，注：vlan.100可以看作是vlan unit 100）

set security zones security-zone trust interfaces vlan.100

#(将vlan100放入trust区域)

#将子接口加入vlan100
set interface ge-0/0/0/12 unit 0 family ethernet-switching vlan members vlan100
set interface ge-0/0/0/13 unit 0 family ethernet-switching vlan members vlan100
set interface ge-0/0/0/14 unit 0 family ethernet-switching vlan members vlan100
set interface ge-0/0/0/15 unit 0 family ethernet-switching vlan members vlan100

#开通vlan100的DHCP功能

set system services dhcp router 192.168.100.254

set system services dhcp pool 192.168.100.254/24 address-range low 192.168.100.200
set system services dhcp pool 192.168.100.254/24 address-range high 192.168.100.253
 

#开通trust到trust的策略，确保vlan100和vlan0能相互通讯

set security policies from-zone trust to-zone trust policy trust-to-trust match source-address any
set security policies from-zone trust to-zone trust policy trust-to-trust match destination-address any
set security policies from-zone trust to-zone trust policy trust-to-trust match application any
set security policies from-zone trust to-zone trust policy trust-to-trust then permit