基于MAC认证的Portal无感知认证

基于MAC认证的Portal无感知认证：基于portal在线用户的MAC认证

一、组网需求：

WX系列AC、FIT AP、便携机（安装有无线网卡）、Radius/Portal Server

二、实现原理：

中国移动主推的Portal无感知认证是基于流量触发的mac-trigger，要求支持移动的mac-trigger协议，并且新增MAC绑定服务器以存储MAC的绑定关系。对于第三方的Radius/Portal server厂商来说开发较繁琐，有些厂商是不支持的。如果不支持mac-trigger协议，可以以下方案实现Portal的无感知认证，实现原理如下：

（1）用户的业务VLAN开启MAC认证和guest vlan功能；

（2）用户第一次上线时进行MAC认证，AC根据用户MAC查找在线Portal用户，如果有该MAC地址的Portal用户，则MAC认证成功。因为用户第一次认证，AC没有该MAC地址的Portal在线用户，用户MAC认证失败，进入guest vlan；

（3）guest vlan开启Portal认证；

（4）用户在guest vlan进行Portal认证，Portal认证成功后，AC立即将该用户去关联，触发用户重关联，此时由于设置idle-cut时间还未生效，AC上有该Portal用户在线；

（5）用户重关联时进行MAC认证，此时AC上已有该MAC地址的Portal用户，MAC认证通过。

（6）用户后续都是无感知的MAC认证，MAC认证通过的前提是对应MAC地址的Portal用户在线，因为后续用户流量属于业务VLAN，Portal用户的流量为0，因此设置idle-cut时间为Portal用户的在线时间，即用户能够MAC认证通过的时间。

备注：

该方案中，第三方Radius/Portal server只需具有Radius服务器和Portal服务器的功能，没有特殊要求，基于portal用户的MAC认证功能在AC自身实现。

三、组网图：

本典型配置举例中AC使用WX5004无线控制器，版本为R2507P18。SW作为AP网关（Vlan-int2：192.168.2.254/24）、Client进行MAC认证的vlan网关（Vlan-int10：192.168.10.254/24）、Client进行Portal认证的guest vlan网关（Vlan-int11：192.168.11.254/24），并配置DHCP Server为FIT AP、Client分配IP地址。第三方Radius/Portal server的IP地址为192.168.100.253，AC通过IP地址192.168.100.1与其互联。

四、配置信息：

1．AC配置信息：

#

version 5.20, Release 2507P18

#

sysname AC

#

domain default enable system

#

telnet server enable

#

port-security enable

#

portal server dsf-portal ip 192.168.100.253 key cipher $c$3$uDGtFFtWMQH6VTGbBg3tVMYIv+F00w== url 192.168.100.253/portal server-type imc

portal free-rule 0 source mac 3822-d6c0-ad73 destination any

#

vlan 1

#

vlan 2

#

vlan 10 to 11

#

Vlan 100

#

vlan 1000

#

radius scheme dsf-portal

primary authentication 192.168.100.253

primary accounting 192.168.100.253

key authentication cipher $c$3$o1jrlBnKIVhr5s6BS5Ck3pV2XGtpFQ==

key accounting cipher $c$3$JvB3TU6DkwokktR2uX/6vl5S+5XWvg==

user-name-format without-domain

nas-ip 192.168.100.1

#

domain dsf-mac

authentication lan-access none

authorization lan-access none

accounting lan-access none

access-limit disable

state active

idle-cut disable

self-service-url disable

domain dsf-portal

authentication portal radius-scheme dsf-portal

authorization portal none

accounting portal none

access-limit disable

state active

idle-cut disable

self-service-url disable

domain system

access-limit disable

state active

idle-cut disable

self-service-url disable

#

user-group system

group-attribute allow-guest

#

local-user admin

password cipher $c$3$4CSnRqvYBd2xHeUsyDKNVbcG7cL1Q/IT

authorization-attribute level 3

service-type telnet

#

wlan rrm

dot11a mandatory-rate 6 12 24

dot11a supported-rate 9 18 36 48 54

dot11b mandatory-rate 1 2

dot11b supported-rate 5.5 11

dot11g mandatory-rate 1 2 5.5 11

dot11g supported-rate 6 9 12 18 24 36 48 54

#

wlan service-template 1 clear

ssid dsf-portal

bind WLAN-ESS 1

service-template enable

#

interface NULL0

#

interface Vlan-interface1

ip address 192.168.0.100 255.255.255.0

#

interface Vlan-interface2

ip address 192.168.2.1 255.255.255.0

#

interface Vlan-interface10

ip address 192.168.10.1 255.255.255.0

#

interface Vlan-interface11

ip address 192.168.11.1 255.255.255.0

portal server dsf-portal method direct

portal domain dsf-portal

portal nas-port-type wireless

portal nas-ip 192.168.100.1

#

interface Vlan-interface100

ip address 192.168.100.1 255.255.255.0

#

interface GigabitEthernet1/0/1

port link-type trunk

port trunk permit vlan all

#

interface GigabitEthernet1/0/2

#

interface GigabitEthernet1/0/3

#

interface GigabitEthernet1/0/4

#

interface Ten-GigabitEthernet1/0/5

#

interface WLAN-ESS1

port link-type hybrid

undo port hybrid vlan 1

port hybrid vlan 1000 untagged

port hybrid pvid vlan 1000

mac-vlan enable

port-security port-mode mac-authentication

mac-authentication guest-vlan 11

mac-authentication domain dsf-mac

mac-authentication trigger after-portal

#

wlan ap ap01 model WA2220-AG id 1

serial-id 210235A29EB092002600

radio 1

service-template 1 vlan-id 10

radio enable

radio 2

service-template 1 vlan-id 10

radio enable

#

ip route-static 0.0.0.0 0.0.0.0 192.168.100.254

#

undo info-center logfile enable

#

snmp-agent

snmp-agent local-engineid 800063A2033CE5A684342E

snmp-agent community read public

snmp-agent community write private

snmp-agent sys-info version all

#

arp-snooping enable

#

load xml-configuration

#

user-interface con 0

user-interface vty 0 4

authentication-mode scheme

user privilege level 3

#

return

2．SW的配置信息：

#

version 5.20, Release 2103

#

sysname SW

#

domain default enable system

#

telnet server enable

#

vlan 1

#

vlan 2

#

vlan 10 to 11

#

vlan 100

#

radius scheme system

server-type extended

primary authentication 127.0.0.1 1645

primary accounting 127.0.0.1 1646

user-name-format without-domain

#

domain system

access-limit disable

state active

idle-cut disable

self-service-url disable

#

dhcp server ip-pool pool-ap

network 192.168.2.0 mask 255.255.255.0

gateway-list 192.168.2.254

#

dhcp server ip-pool pool-client-mac

network 192.168.10.0 mask 255.255.255.0

gateway-list 192.168.10.254

#

dhcp server ip-pool pool-client-portal

network 192.168.11.0 mask 255.255.255.0

gateway-list 192.168.11.254

#

user-group system

group-attribute allow-guest

#

local-user admin

#

interface NULL0

#

interface Vlan-interface2

ip address 192.168.2.254 255.255.255.0

#

interface Vlan-interface10

ip address 192.168.10.254 255.255.255.0

#

interface Vlan-interface11

ip address 192.168.11.254 255.255.255.0

#

interface Vlan-interface100

ip address 192.168.100.254 255.255.255.0

#

interface Ethernet1/0/1

port link-mode bridge

port access vlan 2

poe enable

#

interface Ethernet1/0/23

port link-mode bridge

port access vlan 100

#

interface Ethernet1/0/24

port link-mode bridge

port link-type trunk

port trunk permit vlan all

#

dhcp server forbidden-ip 192.168.2.1

dhcp server forbidden-ip 192.168.10.1

dhcp server forbidden-ip 192.168.11.1

#

dhcp enable

#

load xml-configuration

#

load tr069-configuration

#

user-interface aux 0

user-interface vty 0 15

#

return

五、主要配置步骤：

1．AC配置：

#创建VLAN，二层端口配置VLAN信息，并配置VLAN接口IP地址。

system-view

[AC] vlan 2

[AC –vlan2] quit

[AC] vlan 10

[AC –vlan10] quit

[AC] vlan 11

[AC –vlan11] quit

[AC] vlan 100

[AC –vlan100] quit

[AC] vlan 1000

[AC –vlan1000] quit

[AC] interface GigabitEthernet1/0/1

[AC- GigabitEthernet1/0/1] port link-type trunk

[AC- GigabitEthernet1/0/1] port trunk permit vlan all

[AC] interface Vlan-interface2

[AC-Vlan-interface2] ip address 192.168.2.1 255.255.255.0

[AC-Vlan-interface2] quit

[AC] interface Vlan-interface10

[AC-Vlan-interface10] ip address 192.168.10.1 255.255.255.0

[AC-Vlan-interface10] quit

[AC] interface Vlan-interface11

[AC-Vlan-interface11] ip address 192.168.11.1 255.255.255.0

[AC-Vlan-interface11] quit

[AC] interface Vlan-interface100

[AC-Vlan-interface100] ip address 192.168.100.1 255.255.255.0

[AC-Vlan-interface100] quit

#使能ARP Snooping功能，命令display wlan client显示无线客户端的IP地址。

[AC] arp-snooping enable

#配置静态路由。

[AC] ip route-static 0.0.0.0 0.0.0.0 192.168.100.254

# 配置RADIUS方案，创建名称为dsf-mac的RADIUS方案。

[AC] radius scheme dsf-mac

#配置MAC认证域，创建并进入名字为dsf-mac的ISP域。

[AC] domain dsf-mac

[AC-isp- dsf-mac] authentication lan-access none

[AC-isp- dsf-mac] authorization lan-access none

[AC-isp- dsf-mac] accounting lan-access none

[AC-isp- dsf-mac] quit

# 配置Portal认证RADIUS方案，创建名称为dsf-portal的RADIUS方案。

[AC] radius scheme dsf-portal

[AC-radius- dsf-portal] primary authentication 192.168.100.253

[AC-radius- dsf-portal] primary accounting 192.168.100.253

[AC-radius- dsf-portal] key authentication dsf

[AC-radius- dsf-portal] key accounting dsf

[AC-radius- dsf-portal] user-name-format without-domain

[AC-radius- dsf-portal] nas-ip 192.168.100.1

[AC-radius- dsf-portal] quit

#配置Portal认证域，创建并进入名字为dsf-portal的ISP域。

[AC] domain dsf-portal

[AC-isp- dsf-portal] authentication portal radius-scheme dsf-portal

[AC-isp- dsf-portal] authorization portal none

[AC-isp- dsf-portal] accounting portal none

[AC-isp- dsf-portal] quit

#配置Portal服务器：名称为dsf-portal，IP地址为192.168.100.253，密钥为dsf，URL为192.168.100.253/portal。

[AC] portal server dsf-portal ip 192.168.100.253 key dsf url 192.168.100.253/portal server-type imc

#配置Portal free-rule，允许源MAC 地址为用户网关MAC（3822-d6c0-ad73）的所有流量。

[AC] portal free-rule 0 source mac 3822-d6c0-ad73 destination any

#在用户MAC认证guest vlan接口上使能Portal认证，并配置接入的Portal用户使用认证域dsf-portal。

[AC] interface Vlan-interface11

[AC-Vlan-interface11] portal server dsf-portal method direct

[AC-Vlan-interface11] portal domain dsf-portal

[AC-Vlan-interface11] portal nas-port-type wireless

[AC-Vlan-interface11] portal nas-ip 192.168.100.1

[AC-Vlan-interface11] quit

#配置端口安全。

[AC] port-security enable

#配置WLAN ESS接口，并配置MAC认证。

[AC] interface WLAN-ESS1

[AC-WLAN-ESS1] port link-type hybrid

[AC-WLAN-ESS1] undo port hybrid vlan 1

[AC-WLAN-ESS1] port hybrid vlan 1000 untagged

[AC-WLAN-ESS1] port hybrid pvid vlan 1000

[AC-WLAN-ESS1] mac-vlan enable

[AC-WLAN-ESS1] port-security port-mode mac-authentication

[AC-WLAN-ESS1] mac-authentication guest-vlan 11

[AC-WLAN-ESS1] mac-authentication domain dsf-mac

#指定对用户的MAC地址认证必须在该用户通过Portal认证之后。

[AC-WLAN-ESS1] mac-authentication trigger after-portal

[AC-WLAN-ESS1]quit

#配置service-template服务模板。

[AC] wlan service-template 1 clear

[AC-wlan-st-1] ssid dsf-portal

[AC-wlan-st-1] bind WLAN-ESS 1

[AC-wlan-st-1] service-template enable

[AC-wlan-st-1] quit

#配置ap1。

[AC] wlan ap ap01 model WA2220-AG

[AC-wlan-ap-ap01] serial-id 210235A29EB092002600

[AC-wlan-ap-ap01] radio 1

[AC- wlan-ap-ap01-radio-1] service-template 1 vlan-id 10

[AC- wlan-ap-ap01-radio-1] radio enable

[AC- wlan-ap-ap01-radio-1] quit

[AC-wlan-ap-ap01] radio 2

[AC- wlan-ap-ap01-radio-2 service-template 1 vlan-id 10

[AC- wlan-ap-ap01-radio-2 radio enable

[AC- wlan-ap-ap01-radio-2 quit

[AC-wlan-ap-ap01] quit

#配置SNMP。

[AC] snmp-agent

[AC] snmp-agent community read public

[AC] snmp-agent community write private

[AC] snmp-agent sys-info version all

2．SW配置：

#创建VLAN，二层端口配置VLAN信息，并配置VLAN接口IP地址。

system-view

[SW] vlan 2

[SW –vlan2] quit

[SW] vlan 10

[SW –vlan10] quit

[SW] vlan 11

[SW –vlan11] quit

[SW] vlan 100

[SW –vlan100] quit

[SW] interface Ethernet1/0/1

[SW-Ethernet1/0/1] port access vlan 2

[SW-Ethernet1/0/1] poe enable

[SW-Ethernet1/0/1] quit

[SW] interface Ethernet1/0/23

[SW-Ethernet1/0/23] port access vlan 100

[SW-Ethernet1/0/23] quit

[SW] interface Ethernet1/0/24

[SW-Ethernet1/0/24] port link-type trunk

[SW-Ethernet1/0/24] port trunk permit vlan all

[SW-Ethernet1/0/24] quit

[SW] interface Vlan-interface2

[SW-Vlan-interface2] ip address 192.168.2.254 255.255.255.0

[SW-Vlan-interface2] quit

[SW] interface Vlan-interface10

[SW-Vlan-interface10] ip address 192.168.10.254 255.255.255.0

[SW-Vlan-interface10] quit

[SW] interface Vlan-interface11

[SW -Vlan-interface11] ip address 192.168.11.254 255.255.255.0

[SW -Vlan-interface11] quit

[SW] interface Vlan-interface100

[SW -Vlan-interface100] ip address 192.168.100.254 255.255.255.0

[SW -Vlan-interface100] quit

#配置DHCP server。

[SW] dhcp enable

[SW] dhcp server ip-pool pool-ap

[SW- dhcp server ip-pool pool-ap] network 192.168.2.0 mask 255.255.255.0

[SW- dhcp server ip-pool pool-ap] gateway-list 192.168.2.254

[SW- dhcp server ip-pool pool-ap] quit

[SW] dhcp server ip-pool pool-client-mac

[SW- dhcp server ip-pool pool-client-mac] network 192.168.10.0 mask 255.255.255.0

[SW- dhcp server ip-pool pool-client-mac] gateway-list 192.168.10.254

[SW- dhcp server ip-pool pool-client-mac] quit

[SW] dhcp server ip-pool pool-client-portal

[SW- dhcp server ip-pool pool-client-portal] network 192.168.11.0 mask 255.255.255.0

[SW- dhcp server ip-pool pool-client-portal] gateway-list 192.168.11.254

[SW- dhcp server ip-pool pool-client-portal] quit

[SW] dhcp server forbidden-ip 192.168.2.1

[SW] dhcp server forbidden-ip 192.168.10.1

[SW] dhcp server forbidden-ip 192.168.11.1

3．第三方Radius/Portal server配置：

第三方Radius/Portal server只需具有Radius服务器和Portal服务器的功能，没有特殊要求，基于portal用户的MAC认证功能在AC自身实现。

六、结果验证：

（1）Client首次接入无线服务，MAC认证未通过，进入Guest VLAN11。

（2）Client通过浏览器访问网络，弹出认证页面，输入用户名密码后，Portal认证通过，通过display portal user all命令查看存在Portal用户信息。

（3）AC将该Client下线，重新接入该服务，MAC认证成功，Client进入VLAN 10。

（4）在AC上通过display connection命令查看在线用户信息，存在MAC认证和Portal认证2个用户。此时Client可以通过业务网关访问Internet网络。