Cisco smerovač môže byť nakonfigurovaný ako FR prepínač (popísané v článku Konfigurácia smerovača vo funkcii Frame relay prepínača). Konfigurácia spočíva v zapnutí FR prepínania a vypnutí IP smerovania, a v nakonfigurovaní prepínacej FR tabuľky, t.j. prepnutia vstupného rámca na základe vstupného rozhrania a hodnoty DLCI na výstupný port a s akým DLCI.
V tomto článku nakonfigurujeme dva Cisco smerovače v úlohe FR prepínačov tvoriacich FR mračno. Na mračno sú pripojené štyri zákaznícke zariadenia – smerovače.
Topológia
Topológiu tvoria dva FR prepínače, FR_1 a FR_2. a Štyri zákaznícke smerovače. R1 a R4 predstavujú zákazníka číslo jedna s konektivitou cez FR WAN. Smerovače R5 a R6 predstavujú zákazníka číslo 2. Zákazníkom bude zriadený FR PVC s DLCI podľa obrázku.
Konfigurácia
Konfigurácia FR mračna
1. Nastavenie mena a zapnutie fr prepínania. Pre FR_1
Router(config)#hostname FR_1 FR_1(config)#frame-relay switching
a pre FR_2
Router(config)#hostname FR_2 FR_2(config)#frame-relay switching
2. Konfigurácia rozhraní smerom na zákazníka (tzv. UNI – User to Network Interface). Rozhrania nesmú mať IP adresu, nastavenie enkapsulácie na frame-relay, nastavenie typu rozhrania na DCE (z default DTE), po prípade nastavenie hodín (príkaz clock rate).
UNI pre FR_1
FR_1(config)#int serial 0/0 FR_1(config-if)#encapsulation frame-relay FR_1(config-if)#frame-relay intf-type dce FR_1(config-if)#no shutdown FR_1(config-if)#int serial0/2 FR_1(config-if)#encapsulation frame-relay FR_1(config-if)#frame-relay intf-type dce FR_1(config-if)#no shutdown
UNI pre FR_2
FR_2(config)#int s 0/1 FR_2(config-if)#encapsulation frame-relay FR_2(config-if)#frame-relay intf-type dce FR_2(config-if)#no shutdown FR_2(config-if)#int serial 0/2 FR_2(config-if)#encapsulation frame-relay FR_2(config-if)#frame-relay intf-type dce FR_2(config-if)#no shutdown
3. Konfigurácia rozhraní medzi FR prepínačmi, tzv. NNI – Network to Network interface
NNI pre FR_1
FR_1(config-if)#int s0/1
FR_1(config-if)#encapsulation frame-relay
FR_1(config-if)#frame-relay intf-type nni
FR_1(config-if)#no shutdown
NNI pre FR_2
FR_2(config)#int s0/0
FR_2(config-if)#encapsulation frame-relay
FR_2(config-if)#frame-relay intf-type nni
FR_2(config-if)#no shutdown
4. Konfigurácia prepínacích máp
Pre prepínač FR_1
FR_1(config-if)#int s 0/0 FR_1(config-if)#frame-relay route 104 int s 0/1 101 FR_1(config-if)#int s 0/2 FR_1(config-if)#frame-relay route 506 int s 0/1 202 FR_1(config-if)#int s0/1 FR_1(config-if)#frame-relay route 101 int s0/0 104 FR_1(config-if)#frame-relay route 202 int s0/2 506
Overenie
FR_1#sh frame-relay route Input Intf Input Dlci Output Intf Output Dlci Status Serial0/0 104 Serial0/1 101 inactive Serial0/1 101 Serial0/0 104 inactive Serial0/1 202 Serial0/2 506 inactive Serial0/2 506 Serial0/1 202 inactive
Pre prepínač FR_2
FR_2(config-if)#int s0/1 FR_2(config-if)#frame-relay route 401 int s 0/0 101 FR_2(config-if)#int s 0/2 FR_2(config-if)#frame-relay route 605 int s 0/0 202 FR_2(config-if)#int s 0/0 FR_2(config-if)#frame-relay route 101 int s 0/1 401 FR_2(config-if)#frame-relay route 202 int s 0/2 605
Overenie
FR_2#sh frame-relay route Input Intf Input Dlci Output Intf Output Dlci Status Serial0/0 101 Serial0/1 401 inactive Serial0/0 202 Serial0/2 605 inactive Serial0/1 401 Serial0/0 101 inactive Serial0/2 605 Serial0/0 202 inactive
5. Konfigurácia zákazníckych smerovačov, smerovania a overenie. Pre jednoduchosť za každým zákazníckym zariadením bude LAN s adresou triedy A podľa čísla smerovača, t.j. za R1 sieť 1.0.0.0/8, R2 sieť 2.0.0.0/8 a atď. Medzi smerovačmi nad FR WAN bude sieť typu A. Medzi R1 a R4 sieť 10.0.0.0/8, medzi R5 a R6 sieť 20.0.0.0/8. Pre smerovanie použijeme RIPverzie 2
Zákazník 1
Smerovač R1
Router(config)#hostname R1 R1(config)#int s 0/0 R1(config-if)#encapsulation frame-relay R1(config-if)#ip address 10.0.0.1 255.0.0.0 R1(config-if)#no sh R1(config-if)#int fa0/0 R1(config-if)#no sh R1(config-if)#ip add 1.0.0.1 255.0.0.0 R1(config-if)#no keepalive R1(config)#router rip R1(config-router)#version 2 R1(config-router)#net 1.0.0.0 R1(config-router)#net 10.0.0.0
Smerovač R4
Router(config)#hostname R4 R4(config)#int serial 0/0 R4(config-if)#no shut R4(config-if)#encapsulation frame-relay R4(config-if)#ip add 10.0.0.2 255.0.0.0 R4(config-if)#int fa 0/0 R4(config-if)#no shut R4(config-if)#no keep R4(config-if)#ip add 4.0.0.1 255.0.0.0 R4(config-if)#router rip R4(config-router)#version 2 R4(config-router)#net 10.0.0.0 R4(config-router)#net 4.0.0.0
Zákazníka 2 so smerovačmi R4 a R6 nakonfigurujeme obdobným spôsobom.
Overenie
Overenie osahuje len výpisy smerovača R1, tie isté príkazy je možné aplikovať na smervoač R1, R4, R5, R6
Stav rozhraní na R1
R1#sh ip int br Interface IP-Address OK? Method Status Protocol FastEthernet0/0 1.0.0.1 YES manual up up Serial0/0 10.0.0.1 YES manual up up FastEthernet0/1 unassigned YES unset administratively down down Serial0/1 unassigned YES unset administratively down down Serial0/2 unassigned YES unset administratively down down
stav FR mapy na R1
R1#sh frame-relay map
Serial0/0 (up): ip 10.0.0.2 dlci 104(0x68,0x1880), dynamic,
broadcast,, status defined, active
Overenie smerovacej tabuľky na R1
R1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
C 1.0.0.0/8 is directly connected, FastEthernet0/0
R 4.0.0.0/8 [120/1] via 10.0.0.2, 00:00:10, Serial0/0
C 10.0.0.0/8 is directly connected, Serial0/0
Overenie ping-om, úspešné:
R1#ping 4.0.0.1 source 1.0.0.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 4.0.0.1, timeout is 2 seconds: Packet sent with a source address of 1.0.0.1 !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/12/32 ms
Listing running config-ov
FR_1
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname FR_1 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ip cef ! ! ! ! ip auth-proxy max-nodata-conns 3 ip admission max-nodata-conns 3 ! ! ! frame-relay switching ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface Serial0/0 no ip address encapsulation frame-relay clock rate 2000000 frame-relay intf-type dce frame-relay route 104 interface Serial0/1 101 ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/1 no ip address encapsulation frame-relay clock rate 2000000 frame-relay intf-type nni frame-relay route 101 interface Serial0/0 104 frame-relay route 202 interface Serial0/2 506 ! interface Serial0/2 no ip address encapsulation frame-relay clock rate 2000000 frame-relay intf-type dce frame-relay route 506 interface Serial0/1 202 ! interface Serial0/3 no ip address shutdown clock rate 2000000 ! ip forward-protocol nd ! ! ip http server no ip http secure-server ! ! ! ! control-plane ! ! ! ! ! ! ! ! ! ! line con 0 line aux 0 line vty 0 4 login ! ! end
FR_2
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname FR_2 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ip cef ! ! ! ! ip auth-proxy max-nodata-conns 3 ip admission max-nodata-conns 3 ! ! ! frame-relay switching ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface Serial0/0 no ip address encapsulation frame-relay clock rate 2000000 frame-relay intf-type nni frame-relay route 101 interface Serial0/1 401 frame-relay route 202 interface Serial0/2 605 ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/1 no ip address encapsulation frame-relay clock rate 2000000 frame-relay intf-type dce frame-relay route 401 interface Serial0/0 101 ! interface Serial0/2 no ip address encapsulation frame-relay clock rate 2000000 frame-relay intf-type dce frame-relay route 605 interface Serial0/0 202 ! interface Serial0/3 no ip address shutdown clock rate 2000000 ! ip forward-protocol nd ! ! ip http server no ip http secure-server ! ! ! ! control-plane ! ! ! ! ! ! ! ! ! ! line con 0 line aux 0 line vty 0 4 login ! ! end
R1
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R1 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ip cef ! ! ! ! ip auth-proxy max-nodata-conns 3 ip admission max-nodata-conns 3 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface FastEthernet0/0 ip address 1.0.0.1 255.0.0.0 duplex auto speed auto no keepalive ! interface Serial0/0 ip address 10.0.0.1 255.0.0.0 encapsulation frame-relay clock rate 2000000 ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/1 no ip address shutdown clock rate 2000000 ! interface Serial0/2 no ip address shutdown clock rate 2000000 ! router rip version 2 network 1.0.0.0 network 10.0.0.0 ! ip forward-protocol nd ! ! ip http server no ip http secure-server ! ! ! ! control-plane ! ! ! ! ! ! ! ! ! ! line con 0 line aux 0 line vty 0 4 login ! ! end
R4
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R4 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ip cef ! ! ! ! ip auth-proxy max-nodata-conns 3 ip admission max-nodata-conns 3 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface FastEthernet0/0 ip address 4.0.0.1 255.0.0.0 duplex auto speed auto no keepalive ! interface Serial0/0 ip address 10.0.0.2 255.0.0.0 encapsulation frame-relay clock rate 2000000 ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/1 no ip address shutdown clock rate 2000000 ! router rip version 2 network 4.0.0.0 network 10.0.0.0 ! ip forward-protocol nd ! ! ip http server no ip http secure-server ! ! ! ! control-plane ! ! ! ! ! ! ! ! ! ! line con 0 logging synchronous line aux 0 line vty 0 4 login ! ! end
GNS3 topo konfig (net file)
autostart = False
[127.0.0.1:7200]
workingdir = C:\Users\palo.KIS\AppData\Local\Temp
udp = 10000
[[2691]]
image = C:\Program Files (x86)\GNS3\Images\c2691-adventerprisek9-mz.124-25d.bin.unpacked
idlepc = 0x6120b0c4
ghostios = True
[[ROUTER R4]]
model = 2691
console = 2003
aux = 2100
wic0/0 = WIC-2T
s0/0 = FR_2 s0/1
x = 233.0
y = -123.0
[[ROUTER R1]]
model = 2691
console = 2000
aux = 2101
wic0/0 = WIC-1T
wic0/1 = WIC-1T
wic0/2 = WIC-1T
s0/0 = FR_1 s0/0
x = -268.0
y = -118.0
[[ROUTER FR_1]]
model = 2691
console = 2001
aux = 2102
wic0/0 = WIC-2T
wic0/1 = WIC-2T
s0/0 = R1 s0/0
s0/1 = FR_2 s0/0
s0/2 = R5 s0/0
x = -93.0
y = -49.0
[[ROUTER FR_2]]
model = 2691
console = 2002
aux = 2103
wic0/0 = WIC-2T
wic0/1 = WIC-2T
s0/0 = FR_1 s0/1
s0/1 = R4 s0/0
s0/2 = R6 s0/0
x = 46.0
y = -48.0
[127.0.0.1:7201]
workingdir = C:\Users\palo.KIS\AppData\Local\Temp
udp = 10100
[[2691]]
image = C:\Program Files (x86)\GNS3\Images\c2691-adventerprisek9-mz.124-25d.bin.unpacked
idlepc = 0x6120b0c4
ghostios = True
[[ROUTER R5]]
model = 2691
console = 2005
aux = 2104
wic0/0 = WIC-2T
s0/0 = FR_1 s0/2
x = -256.0
y = 62.0
[[ROUTER R6]]
model = 2691
console = 2006
aux = 2105
wic0/0 = WIC-2T
s0/0 = FR_2 s0/2
x = 226.0
y = 69.0
[GNS3-DATA]
[[NOTE 1]]
text = s0/0
x = -32.6906766445
y = 28.9648955176
interface = FR_2 s0/0
[[NOTE 2]]
text = s0/2
x = 49.3554199598
y = 42.7081340455
interface = FR_2 s0/2
[[NOTE 3]]
text = s0/1
x = 68.546077776
y = 3.65670818149
interface = FR_2 s0/1
[[NOTE 4]]
text = s0/1
x = 54.6906766445
y = 27.0351044824
interface = FR_1 s0/1
[[NOTE 5]]
text = s0/2
x = 2.26928950579
y = 47.6051446495
interface = FR_1 s0/2
[[NOTE 6]]
text = s0/0
x = -35.5016279901
y = -19.8454894825
interface = FR_1 s0/0
[[NOTE 7]]
text = s0/0
x = 71.5016279901
y = 32.8454894825
interface = R1 s0/0
[[NOTE 8]]
text = s0/0
x = -49.3554199598
y = -2.70813404552
interface = R6 s0/0
[[NOTE 9]]
text = s0/0
x = 63.7307104942
y = -3.60514464949
interface = R5 s0/0
[[NOTE 10]]
text = s0/0
x = -2.54607777605
y = 40.3432918185
interface = R4 s0/0