Разлика между версии на „Маршрутизиране на трафика с Catalyst 2960“

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(→‎Конфигурация на S1, S2 и S3)
 
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=Примерна топология (IPv4)=
 
=Примерна топология (IPv4)=
 
[[Файл:Lanbase_Routing_Topology.PNG]]
 
[[Файл:Lanbase_Routing_Topology.PNG]]
 +
 +
В примера е разгледана конфигурацията на S1. Устройства S2 и S3 се използват като стандартни L2 комутатори, с конфигурирани VLAN и Trunk,
 +
 +
=SDM Templates=
 +
С помощта на SDM Templates е възможно при комутаторите на Cisco Systems да се оптимизират или активират дадени услуги. По подразбиране при IOS 15 Catalyst 2960 не поддържа маршрутизиране на трафика чрез статични пътища, но след активиране на '''sdm prefer lanbase-routing''' тази функционалност се активира.
 +
 +
Допълнителна информация за SDM Templates при Catalyst 2960 можете да намерите на адрес:
 +
[http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12-2_55_se/configuration/guide/scg_2960/swsdm.html Configuring SDM Templates]
 +
 +
=Конфигуриране на S1=
 +
Първоначално е необходимо да се провери и/или активира SDM Template Lanbase-routing. За целта се използва командата '''sdm prefer lanbase-routing''':
 +
 +
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap;white-space: -pre-wrap;white-space: -o-pre-wrap; word-wrap: break-word">
 +
Switch#conf t
 +
Enter configuration commands, one per line.  End with CNTL/Z.
 +
Switch(config)#
 +
Switch(config)#sdm prefer lanbase-routing
 +
Changes to the running SDM preferences have been stored, but cannot take effect
 +
until the next reload.
 +
Use 'show sdm prefer' to see what SDM preference is currently active.
 +
Switch(config)#
 +
Switch(config)#do reload
 +
</pre>
 +
 +
Проверката на активния в момента SDM Template се извървшва с '''show sdm prefer''':
 +
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap;white-space: -pre-wrap;white-space: -o-pre-wrap; word-wrap: break-word">
 +
Switch#show sdm prefer
 +
The current template is "lanbase-routing" template.
 +
The selected template optimizes the resources in
 +
the switch to support this level of features for
 +
0 routed interfaces and 255 VLANs.
 +
 +
  number of unicast mac addresses:                  4K
 +
  number of IPv4 IGMP groups + multicast routes:    0.25K
 +
  number of IPv4 unicast routes:                    4.25K
 +
    number of directly-connected IPv4 hosts:        4K
 +
    number of indirect IPv4 routes:                256
 +
  number of IPv6 multicast groups:                  0.375k
 +
  number of IPv6 unicast routes:                    1.25K
 +
    number of directly-connected IPv6 addresses:    0.75K
 +
    number of indirect IPv6 unicast routes:        448
 +
  number of IPv4 policy based routing aces:        0
 +
  number of IPv4/MAC qos aces:                      0.125k
 +
  number of IPv4/MAC security aces:                0.375k
 +
  number of IPv6 policy based routing aces:        0
 +
  number of IPv6 qos aces:                          0.375k
 +
  number of IPv6 security aces:                    127
 +
</pre>
 +
 +
Спрямо примерната топология на S1 следва да се конфигурират VLAN, Trunk, SVI и маршрутизирането на трафика:
 +
 +
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap;white-space: -pre-wrap;white-space: -o-pre-wrap; word-wrap: break-word">
 +
enable
 +
conf t
 +
hostname S1
 +
 +
vlan 10
 +
vlan 20
 +
vlan 30
 +
vlan 99
 +
exit
 +
 +
interface range gi0/1-2
 +
switchport mode trunk
 +
switchport trunk native vlan 99
 +
 +
interface range fa0/1-8
 +
switchport mode access
 +
switchport access vlan 10
 +
interface range fa0/9-16
 +
switchport mode access
 +
switchport access vlan 20
 +
interface range fa0/17-24
 +
switchport mode access
 +
switchport access vlan 30
 +
exit
 +
 +
interface vlan 10
 +
ip address 10.10.0.1 255.255.0.0
 +
interface vlan 20
 +
ip address 10.20.0.1 255.255.0.0
 +
interface vlan 30
 +
ip address 10.30.0.1 255.255.0.0
 +
 +
ip routing
 +
 +
end
 +
</pre>
 +
 +
=Проверка на интерфейсите=
 +
За да се проверят IPv4 адресите на SVI може да се използва командата '''show ip interface brief''':
 +
 +
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap;white-space: -pre-wrap;white-space: -o-pre-wrap; word-wrap: break-word">
 +
S1#show ip interface brief
 +
Interface              IP-Address      OK? Method Status                Protocol
 +
Vlan1                  unassigned      YES unset  administratively down down
 +
Vlan10                10.10.0.1      YES manual up                    up
 +
Vlan20                10.20.0.1      YES manual up                    up
 +
Vlan30                10.30.0.1      YES manual up                    up
 +
...
 +
</pre>
 +
 +
=Проверка на маршрутизиращата таблица=
 +
Аналогично на маршрутизаторите за да се провери съдържанието на IPv4 маршрутизиращата таблица може да се използва командата '''show ip route''':
 +
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap;white-space: -pre-wrap;white-space: -o-pre-wrap; word-wrap: break-word">
 +
show ip route
 +
Codes: L - local, 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, H - NHRP, l - LISP
 +
      + - replicated route, % - next hop override
 +
 +
Gateway of last resort is not set
 +
 +
      10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks
 +
C        10.10.0.0/16 is directly connected, Vlan10
 +
L        10.10.0.1/32 is directly connected, Vlan10
 +
C        10.20.0.0/16 is directly connected, Vlan20
 +
L        10.20.0.1/32 is directly connected, Vlan20
 +
C        10.30.0.0/16 is directly connected, Vlan30
 +
L        10.30.0.1/32 is directly connected, Vlan30
 +
</pre>
 +
 +
=Маршрутизиране на трафика чрез статични пътища=
 +
==Добаване на път по подразбиране==
 +
Чрез SDM Template Lanbaserouting комутаторът Catalyst 2960 поддържа '''до 16 статични пътя'''.
 +
Добаването на път по подразбиране е аналогично на маршрутизатора и е чрез командата '''ip route 0.0.0.0 0.0.0.0''' ''next-hop'':
 +
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap;white-space: -pre-wrap;white-space: -o-pre-wrap; word-wrap: break-word">
 +
S1(config)#ip route 0.0.0.0 0.0.0.0 192.168.0.1
 +
</pre>
 +
 +
==Добавяне на статични пътища към отдалечени мрежи==
 +
Отново аналогично на конфигуриането на маршрутизатори за да се опишат статичните пътища към отдалеченик мрежи се използва командата '''ip route''' ''мрежови адрес'' ''маска'' ''next-hop''.
 +
 +
=Конфигурация на S1, S2 и S3=
 +
==S1==
 +
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap;white-space: -pre-wrap;white-space: -o-pre-wrap; word-wrap: break-word">
 +
version 15.0
 +
no service pad
 +
service timestamps debug datetime msec
 +
service timestamps log datetime msec
 +
no service password-encryption
 +
!
 +
hostname S1
 +
!
 +
boot-start-marker
 +
boot-end-marker
 +
!
 +
!
 +
no aaa new-model
 +
system mtu routing 1500
 +
ip routing
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
spanning-tree mode pvst
 +
spanning-tree extend system-id
 +
!
 +
vlan internal allocation policy ascending
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
interface FastEthernet0/1
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/2
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/3
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/4
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/5
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/6
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/7
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/8
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/9
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/10
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/11
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/12
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/13
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/14
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/15
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/16
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/17
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/18
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/19
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/20
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/21
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/22
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/23
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/24
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface GigabitEthernet0/1
 +
switchport trunk native vlan 99
 +
switchport mode trunk
 +
!
 +
interface GigabitEthernet0/2
 +
switchport trunk native vlan 99
 +
switchport mode trunk
 +
!
 +
interface Vlan1
 +
no ip address
 +
shutdown
 +
!
 +
interface Vlan10
 +
ip address 10.10.0.1 255.255.0.0
 +
!
 +
interface Vlan20
 +
ip address 10.20.0.1 255.255.0.0
 +
!
 +
interface Vlan30
 +
ip address 10.30.0.1 255.255.0.0
 +
!
 +
ip http server
 +
ip http secure-server
 +
ip route 0.0.0.0 0.0.0.0 192.168.0.1
 +
!
 +
!
 +
!
 +
line con 0
 +
line vty 5 15
 +
!
 +
end
 +
</pre>
 +
==S2==
 +
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap;white-space: -pre-wrap;white-space: -o-pre-wrap; word-wrap: break-word">
 +
version 15.0
 +
no service pad
 +
service timestamps debug datetime msec
 +
service timestamps log datetime msec
 +
no service password-encryption
 +
!
 +
hostname S2
 +
!
 +
boot-start-marker
 +
boot-end-marker
 +
!
 +
!
 +
no aaa new-model
 +
system mtu routing 1500
 +
!
 +
!
 +
!
 +
!
 +
 +
!
 +
!
 +
!
 +
!
 +
!
 +
spanning-tree mode pvst
 +
spanning-tree extend system-id
 +
!
 +
vlan internal allocation policy ascending
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
interface FastEthernet0/1
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/2
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/3
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/4
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/5
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/6
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/7
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/8
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/9
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/10
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/11
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/12
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/13
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/14
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/15
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/16
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/17
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/18
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/19
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/20
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/21
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/22
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/23
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface FastEthernet0/24
 +
switchport access vlan 20
 +
switchport mode access
 +
!
 +
interface GigabitEthernet0/1
 +
switchport trunk native vlan 99
 +
switchport mode trunk
 +
!
 +
interface GigabitEthernet0/2
 +
shutdown
 +
!
 +
interface Vlan1
 +
no ip address
 +
shutdown
 +
!
 +
ip http server
 +
!
 +
!
 +
line con 0
 +
line vty 0 4
 +
login
 +
line vty 5 15
 +
login
 +
!
 +
end
 +
 +
</pre>
 +
==S3==
 +
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap;white-space: -pre-wrap;white-space: -o-pre-wrap; word-wrap: break-word">
 +
version 15.0
 +
no service pad
 +
service timestamps debug datetime msec
 +
service timestamps log datetime msec
 +
no service password-encryption
 +
!
 +
hostname S3
 +
!
 +
boot-start-marker
 +
boot-end-marker
 +
!
 +
!
 +
no aaa new-model
 +
system mtu routing 1500
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
spanning-tree mode pvst
 +
spanning-tree extend system-id
 +
!
 +
vlan internal allocation policy ascending
 +
!
 +
!
 +
!
 +
!
 +
!
 +
!
 +
interface FastEthernet0/1
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/2
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/3
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/4
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/5
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/6
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/7
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/8
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/9
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/10
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/11
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/12
 +
switchport access vlan 10
 +
switchport mode access
 +
!
 +
interface FastEthernet0/13
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/14
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/15
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/16
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/17
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/18
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/19
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/20
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/21
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/22
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/23
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface FastEthernet0/24
 +
switchport access vlan 30
 +
switchport mode access
 +
!
 +
interface GigabitEthernet0/1
 +
switchport trunk native vlan 99
 +
switchport mode trunk
 +
!
 +
interface GigabitEthernet0/2
 +
shutdown
 +
!
 +
interface Vlan1
 +
no ip address
 +
shutdown
 +
!
 +
ip http server
 +
!
 +
!
 +
line con 0
 +
line vty 0 4
 +
login
 +
line vty 5 15
 +
login
 +
!
 +
end
 +
</pre>

Текуща версия към 09:13, 28 ноември 2015

Примерна топология (IPv4)

Lanbase Routing Topology.PNG

В примера е разгледана конфигурацията на S1. Устройства S2 и S3 се използват като стандартни L2 комутатори, с конфигурирани VLAN и Trunk,

SDM Templates

С помощта на SDM Templates е възможно при комутаторите на Cisco Systems да се оптимизират или активират дадени услуги. По подразбиране при IOS 15 Catalyst 2960 не поддържа маршрутизиране на трафика чрез статични пътища, но след активиране на sdm prefer lanbase-routing тази функционалност се активира.

Допълнителна информация за SDM Templates при Catalyst 2960 можете да намерите на адрес: Configuring SDM Templates

Конфигуриране на S1

Първоначално е необходимо да се провери и/или активира SDM Template Lanbase-routing. За целта се използва командата sdm prefer lanbase-routing: 

Switch#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Switch(config)#
Switch(config)#sdm prefer lanbase-routing
Changes to the running SDM preferences have been stored, but cannot take effect
until the next reload.
Use 'show sdm prefer' to see what SDM preference is currently active.
Switch(config)#
Switch(config)#do reload

Проверката на активния в момента SDM Template се извървшва с show sdm prefer: 

Switch#show sdm prefer
 The current template is "lanbase-routing" template.
 The selected template optimizes the resources in
 the switch to support this level of features for
 0 routed interfaces and 255 VLANs.

  number of unicast mac addresses:                  4K
  number of IPv4 IGMP groups + multicast routes:    0.25K
  number of IPv4 unicast routes:                    4.25K
    number of directly-connected IPv4 hosts:        4K
    number of indirect IPv4 routes:                 256
  number of IPv6 multicast groups:                  0.375k
  number of IPv6 unicast routes:                    1.25K
    number of directly-connected IPv6 addresses:    0.75K
    number of indirect IPv6 unicast routes:         448
  number of IPv4 policy based routing aces:         0
  number of IPv4/MAC qos aces:                      0.125k
  number of IPv4/MAC security aces:                 0.375k
  number of IPv6 policy based routing aces:         0
  number of IPv6 qos aces:                          0.375k
  number of IPv6 security aces:                     127

Спрямо примерната топология на S1 следва да се конфигурират VLAN, Trunk, SVI и маршрутизирането на трафика: 

enable
conf t
hostname S1

vlan 10
vlan 20
vlan 30
vlan 99
exit

interface range gi0/1-2
switchport mode trunk
switchport trunk native vlan 99

interface range fa0/1-8
switchport mode access
switchport access vlan 10
interface range fa0/9-16
switchport mode access
switchport access vlan 20
interface range fa0/17-24
switchport mode access
switchport access vlan 30
exit

interface vlan 10
ip address 10.10.0.1 255.255.0.0
interface vlan 20
ip address 10.20.0.1 255.255.0.0
interface vlan 30
ip address 10.30.0.1 255.255.0.0

ip routing

end

Проверка на интерфейсите

За да се проверят IPv4 адресите на SVI може да се използва командата show ip interface brief: 

S1#show ip interface brief
Interface              IP-Address      OK? Method Status                Protocol
Vlan1                  unassigned      YES unset  administratively down down
Vlan10                 10.10.0.1       YES manual up                    up
Vlan20                 10.20.0.1       YES manual up                    up
Vlan30                 10.30.0.1       YES manual up                    up
...

Проверка на маршрутизиращата таблица

Аналогично на маршрутизаторите за да се провери съдържанието на IPv4 маршрутизиращата таблица може да се използва командата show ip route: 

show ip route
Codes: L - local, 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, H - NHRP, l - LISP
       + - replicated route, % - next hop override

Gateway of last resort is not set

      10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks
C        10.10.0.0/16 is directly connected, Vlan10
L        10.10.0.1/32 is directly connected, Vlan10
C        10.20.0.0/16 is directly connected, Vlan20
L        10.20.0.1/32 is directly connected, Vlan20
C        10.30.0.0/16 is directly connected, Vlan30
L        10.30.0.1/32 is directly connected, Vlan30

Маршрутизиране на трафика чрез статични пътища

Добаване на път по подразбиране

Чрез SDM Template Lanbaserouting комутаторът Catalyst 2960 поддържа до 16 статични пътя. Добаването на път по подразбиране е аналогично на маршрутизатора и е чрез командата ip route 0.0.0.0 0.0.0.0 next-hop: 

S1(config)#ip route 0.0.0.0 0.0.0.0 192.168.0.1

Добавяне на статични пътища към отдалечени мрежи

Отново аналогично на конфигуриането на маршрутизатори за да се опишат статичните пътища към отдалеченик мрежи се използва командата ip route мрежови адрес маска next-hop.

Конфигурация на S1, S2 и S3

S1

version 15.0
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname S1
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
system mtu routing 1500
ip routing
!
!
!
!
!
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
!
!
interface FastEthernet0/1
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/2
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/3
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/4
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/5
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/6
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/7
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/8
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/9
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/10
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/11
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/12
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/13
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/14
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/15
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/16
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/17
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/18
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/19
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/20
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/21
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/22
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/23
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/24
 switchport access vlan 30
 switchport mode access
!
interface GigabitEthernet0/1
 switchport trunk native vlan 99
 switchport mode trunk
!
interface GigabitEthernet0/2
 switchport trunk native vlan 99
 switchport mode trunk
!
interface Vlan1
 no ip address
 shutdown
!
interface Vlan10
 ip address 10.10.0.1 255.255.0.0
!
interface Vlan20
 ip address 10.20.0.1 255.255.0.0
!
interface Vlan30
 ip address 10.30.0.1 255.255.0.0
!
ip http server
ip http secure-server
ip route 0.0.0.0 0.0.0.0 192.168.0.1
!
!
!
line con 0
line vty 5 15
!
end

S2

version 15.0
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname S2
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
system mtu routing 1500
!
!
!
!

!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
!
!
interface FastEthernet0/1
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/2
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/3
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/4
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/5
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/6
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/7
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/8
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/9
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/10
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/11
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/12
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/13
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/14
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/15
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/16
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/17
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/18
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/19
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/20
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/21
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/22
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/23
 switchport access vlan 20
 switchport mode access
!
interface FastEthernet0/24
 switchport access vlan 20
 switchport mode access
!
interface GigabitEthernet0/1
 switchport trunk native vlan 99
 switchport mode trunk
!
interface GigabitEthernet0/2
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
ip http server
!
!
line con 0
line vty 0 4
 login
line vty 5 15
 login
!
end

S3

version 15.0
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname S3
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
system mtu routing 1500
!
!
!
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
!
!
!
!
!
interface FastEthernet0/1
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/2
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/3
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/4
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/5
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/6
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/7
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/8
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/9
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/10
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/11
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/12
 switchport access vlan 10
 switchport mode access
!
interface FastEthernet0/13
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/14
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/15
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/16
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/17
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/18
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/19
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/20
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/21
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/22
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/23
 switchport access vlan 30
 switchport mode access
!
interface FastEthernet0/24
 switchport access vlan 30
 switchport mode access
!
interface GigabitEthernet0/1
 switchport trunk native vlan 99
 switchport mode trunk
!
interface GigabitEthernet0/2
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
ip http server
!
!
line con 0
line vty 0 4
 login
line vty 5 15
 login
!
end
Взето от „http://wiki.ict.academy/index.php?title=Маршрутизиране_на_трафика_с_Catalyst_2960&oldid=363“.