11-21-2002 06:04 AM - edited 03-02-2019 03:04 AM
Please kindly help me if anyone know how to config a cisco3550 router
such that routing between 2 vlan is possible
The Problem Detail:
Setup
=====
FA0/1<->PC A (ip=192.168.70.1, gateway=192.168.70.254)
FA0/2<->PC B (ip=192.168.80.1, gateway=192.168.80.254)
Running Config (detail is no shown)
==============
!
ip routing
!
int fa0/1
switchport access vlan 70
switchport mode access
no shutdown
!
int fa0/2
switchport access vlan 80
switchport mode access
no shutdown
!
int vlan 70
ip address 192.168.70.254
no shutdown
!
int vlan 70
ip address 192.168.70.254
no shutdown
!
Diagnostic Information
======================
PC A (ip=192.168.70.1) can ping gateway = 192.168.70.254 but not 80.254 and 80.1
PC B (ip=192.168.80.1) can ping gateway = 192.168.80.254 but not 70.254 and 70.1
Comment
=======
I have searched the whole cisco site and still just can find the setting mentioned above. If anyone have experience about this issue.Please tell us,thank you
11-21-2002 06:13 AM
Check the status of the VLANs. >> sh int vlan 70
Vlan70 is up, line protocol is up >> this is the correct status
The vlans could very well be down. (line protocol is down) If so, then you forgot to configure the vtp domain. In enable mode type the following:
vlan database
vlan 70 name vlan70
vlan 80 name vlan80
exit
This will fix the problem
11-24-2002 12:29 PM
Do you get both the routes in the routing table?
11-25-2002 08:51 AM
I tried this by doing the same. But I didnt face any problem at all. I am attaching the configuration as well. You dont have to add the vlan manually. It adds automatically as soon as you enter the command "switchport access vlan
Switch#sh run
Building configuration...
Current configuration : 1067 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Switch
!
!
ip subnet-zero
ip routing
!
!
spanning-tree extend system-id
!
!
!
interface GigabitEthernet0/1
no switchport
no ip address
!
interface GigabitEthernet0/2
no ip address
!
interface GigabitEthernet0/3
no ip address
!
interface GigabitEthernet0/4
no ip address
!
interface GigabitEthernet0/5
no ip address
!
interface GigabitEthernet0/6
no ip address
!
interface GigabitEthernet0/7
no ip address
!
interface GigabitEthernet0/8
no ip address
!
interface GigabitEthernet0/9
no ip address
!
interface GigabitEthernet0/10
no ip address
!
interface GigabitEthernet0/11
switchport access vlan 70
no ip address
!
interface GigabitEthernet0/12
switchport access vlan 80
no ip address
!
interface Vlan1
no ip address
shutdown
!
interface Vlan70
ip address 192.168.70.254 255.255.255.0
!
interface Vlan80
ip address 192.168.80.254 255.255.255.0
!
ip classless
ip http server
!
!
!
!
line con 0
line vty 5 15
!
end
Switch#
-----------------------------------------------------------------------------------------------
r1#sh ip int brief
Interface IP-Address OK? Method Status Prot
ocol
FastEthernet0 192.168.70.1 YES manual up up
r1#sh ip rou
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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 192.168.70.254 to network 0.0.0.0
C 192.168.70.0/24 is directly connected, FastEthernet0
S* 0.0.0.0/0 [1/0] via 192.168.70.254
r1#ping 192.168.80.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.80.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
r1#
--------------------------------------------------------------------------------------------------------
r2#sh ip int brief
Interface IP-Address OK? Method Status Prot
ocol
FastEthernet0/0 192.168.80.1 YES manual up up
r2#sh ip route
Codes: C - connected, S - static, I - IGRP, 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, E - EGP
i - IS-IS, 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 192.168.80.254 to network 0.0.0.0
C 192.168.80.0/24 is directly connected, FastEthernet0/0
S* 0.0.0.0/0 [1/0] via 192.168.80.254
r2#
r2#ping 192.168.70.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.70.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
r2#
------------------------------------------------------------------------------------------------------
regards
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