如何做到路由器限速 讓網(wǎng)絡(luò)更加合理
怎樣才能進(jìn)行有效的路由器限速?讓我們的網(wǎng)絡(luò)更加的合理,前一段時(shí)間一直有客戶問我路由器可不可以做到限制內(nèi)部某些機(jī)子的下行速率,我很自然的答了句:可以做路由器限速的,其實(shí)限速肯定是可以的,但是需要考慮一個(gè)具體的問題。
一般接入路由器都作了地址轉(zhuǎn)換,但是了解到路由器的操作步驟會(huì)發(fā)現(xiàn)如下的執(zhí)行步驟:check input rate limits ------->nat outside to inside------->check output rate limits,所以針對(duì)內(nèi)部部分主機(jī)做路由器限速策略,由于必須在ACL里面指定inside local 地址,所以應(yīng)該在內(nèi)網(wǎng)接口上應(yīng)用service-policy output xxx,而不是在外網(wǎng)接口上的service-policy input xxx!下面是一個(gè)具體路由器配置例子:
- Router#sh run
- Building configuration...
- Current configuration : 1026 bytes
- !
- version 12.2
- service timestamps debug datetime msec
- service timestamps log datetime msec
- no service password-encryption
- !
- hostname Router
- !
- !
- ip subnet-zero
- !
- !
- no ip domain lookup
- !
- !
- class-map match-all test-class
- match access-group 100
- !
- !
- policy-map speed
- class test-class
- police cir 80000 bc 32000
- conform-action transmit
- exceed-action drop
- interface FastEthernet0/0
- ip address 192.168.1.111 255.255.255.0
- ip nat outside
- duplex auto
- speed auto
- !
- interface FastEthernet0/1
- ip address 172.16.1.1 255.255.255.0
- ip nat inside
- duplex auto
- speed auto
- service-policy output speed
- !
- ip nat inside source list 1 interface FastEthernet0/0 overload
- !
- ip classless
- ip route 0.0.0.0 0.0.0.0 192.168.1.1
- no ip http server
- !
- !
- access-list 1 permit any
- access-list 100 deny ip any host 172.16.1.100
- access-list 100 permit ip any any
- !
- line con 0
- line aux 0
- line vty 0 4
- !
- !
- end