lo 04.4.4.4.4(r4) s1/2----s1/2(r1)s1/0---s1/1(r2)s1/0----s1/1(r3)s1/0---s1/1(r1)
------------ --------
r1: loopback 0 不開
r2: loopback 0 2.2.2.2
r3: loopback 0 3.3.3.3
r4: loopback 0 4.4.4.4
點到多點PVC 要區別多點到多點
step 1 把R1 降爲frame-relay交換機
r1 config r
frame-relay switching
inter s1/2
encapsulation frame-relay
no shutdown
frame-relay intf-type dce
inter s1/0
encapsulation frame-relay
frame-relay intf-type dce
no shutdown
inter s1/1
encapsulationg frame-relay
frame-relay intf-type dce
no sh
end
----------------------------------------------
step 2 做多條PVC
R1 config t
int s1/0
frame-relay route 402 int s1/2 204
int s1/2
frame-relay route 204 int s1/0 402
inter s1/2
frame-relay route 403 int s1/1 304
inter s1/1
frame-relay route 304 int s1/2 403
end
------------------------------------------------
step 3 客戶接入
r4 config t
inter s1/2
encapsulation frame-relay
exit
int s1/2.234 ? （建立子接口）
int s1/2.234 multipoint （點到多點）
end
r4 config t
int s1/2
no shutdown
end
r4 debug frame-relay lmi 看子接口能不獲得
發現沒有DLCI 沒有DLCI就不能獲得映謝 因爲沒有IP地址
unde all
r4 show frame-relay route
r4 show ip int bri
show frame-relay pvc
發現沒有獲得DLCI
-----------------------------------------------
現在我們用手工獲得 但點到多點不能用靜態的方式，要用動態的方式
r4 config t
int s1/2.234
end
r4 config t
int s1/2.234 (在上面做靜態映謝)
frame-relay map ip 10.1.1.2 ?
frame-relay map ip 10.1.1.2 402 broadcast
frame-relay map ip 10.1.1.3 403 broadcast
end
r4 show frame-relay map
r4 show ip int bri
r4 config t
int s1/2.234
ip add 10.1.1.4 255.255.255.0
end
r2 config t
int s1/1 (物理接口 這沒用子接口)
encapsulation frame-relay
no frame-relay inverse-arp （關掉反向ARP 我們用靜態穩定）
ip add 10.1.1.4 255.255.255.0
frame-relay map ip 10.1.1.4 204 broadcast
exit
r3 config t
interface s1/0
encapsulation frame-relay
no frame-relay inverse-arp
ip add 10.1.1.3 255.255.255.0
frame-relay map ip 10.1.1.4 304 broadcast
no shutdown
end
r2 config t
int s1/1
encapsulation frame-relay
no frame-relay inverse-arp
ip add 10.1.1.2 255.255.255.0
frame-relay map ip 10.1.1.4 204 broadcast
no shutdown
end
r2 show frame-relau map
r4 ping 10.1.1.2
!!!!
r4 ping 10.1.1.3
!!!!
-------------------------------------------------
用LO 0 作爲客戶的局域網
r4 config t
int lo 0
ip add 4.4.4.4 255.255.255.0
end
r2 config t
int lo 0
ip add 2.2.2.2 255.255.255.0
end
r3 config t
int lo 0
ip add 3.3.3.3 255.255.255.0
end
r2 config t
router rip
ver 2
no auto-summary
network 10.1.1.0
network 4.0.0.0
end
r3 config t
router rip
ver 2
no auto-summary
network 10.1.1.0
network 3.0.0.0
end
r4 config t
router rip
ver 2
no auto-summary
network 10.1.1.00.
network 4.
end
r4 show ip rout rip
r4 clear ip route *
r4 show ip route rip
會看到4.0.0.0/8這條路由 因爲幀中繼默認關掉水平分割
r4 show ip int s1/2
你會看到水平分割關掉
物理接口點到多點事會關水平分割的
子接口默認是不會關掉
仔細想想爲啥要關掉 提升10.1.1.0 這個網段怎學
r2 show ip route rip
它沒學到R3的路由所以我們要在R4上面關掉水平分割split-horizon
r4 config t
int s1/2.234
no ip split-horizon
end
r2 show ip route rip
r2 clear ip route *
r2 show ip route rip