12-23-2012 06:42 PM - edited 03-07-2019 10:45 AM
Hello, I am having trouble after creating a management vlan (99) on a 3550 switch.
I have configured the vlan (99) and given it an IP (192.168.1.100) and a default gateway (my router address - 192.168.1.99).
I can ping to the switch from a PC and vice versa. The management VLAN IP is fine but now I cannot ping to the router from either the PC or the switch.
It seems that just by adding VLAN 99 with it's own IP address has now prevented pings from the switch/PC to the router ?
Due to the fact that I have created a new switch management VLAN with an IP, does this mean I have set up the router as a 'router on a stick' scenario ?
Can anyone offer any advice. Thanks kindly.
SWITCH:
Current configuration : 1773 bytes
!
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname philSwitch
!
enable secret 5 $1$ilmv$Y.Tk4P.YHv9YW5QUziuLd/
!
ip subnet-zero
no ip domain-lookup
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
!
interface FastEthernet0/1
no ip address
!
interface FastEthernet0/2
no ip address
!
interface FastEthernet0/3
no ip address
!
interface FastEthernet0/4
no ip address
!
interface FastEthernet0/5
no ip address
!
interface FastEthernet0/6
no ip address
!
interface FastEthernet0/7
no ip address
!
interface FastEthernet0/8
no ip address
!
interface FastEthernet0/9
switchport access vlan 99
switchport mode access
no ip address
!
interface FastEthernet0/10
no ip address
!
interface FastEthernet0/11
no ip address
!
interface FastEthernet0/12
no ip address
!
interface FastEthernet0/13
no ip address
!
interface FastEthernet0/14
no ip address
!
interface FastEthernet0/15
no ip address
no ip address
!
interface FastEthernet0/16
no ip address
!
interface FastEthernet0/17
no ip address
!
interface FastEthernet0/18
no ip address
!
interface FastEthernet0/19
no ip address
!
interface FastEthernet0/20
no ip address
!
interface FastEthernet0/21
no ip address
!
interface FastEthernet0/22
no ip address
!
interface FastEthernet0/23
no ip address
!
interface FastEthernet0/24
no ip address
!
interface GigabitEthernet0/1
no ip address
!
interface GigabitEthernet0/2
no ip address
!
interface Vlan1
no ip address
shutdown
!
interface Vlan99
ip address 192.168.1.100 255.255.255.0
!
ip default-gateway 192.168.1.99
ip classless
ip http server
!
!
!
line con 0
exec-timeout 0 0
password cisco
logging synchronous
login
line vty 0 4
login
line vty 5 15
login
!
end
ROUTER:
Current configuration : 2815 bytes
!
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname phils2801Router
!
boot-start-marker
boot system flash:c2801-ipvoicek9-mz.151-2.T0a.bin
boot-end-marker
!
!
enable secret 5 $1$EoXZ$H4m7dIwwMn/drqZZqoLV./
!
no aaa new-model
dot11 syslog
ip source-route
!
!
!
ip cef
no ip domain lookup
no ipv6 cef
multilink bundle-name authenticated
!
!!
voice-card 0
!
!
interface FastEthernet0/0
no ip address
shutdown
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 192.168.1.99 255.255.255.0
duplex auto
speed auto
!
ip forward-protocol nd
!
!
ip http server
ip http authentication local
ip http secure-server
!
logging esm config
!
!
!
control-plane
!
!
!
mgcp fax t38 ecm
!
!
!
!
telephony-service
max-conferences 4 gain -6
transfer-system full-consult
!
!
line con 0
password cisco
logging synchronous
login
line aux 0
line vty 0 4
privilege level 15
login local
transport input telnet ssh
!
scheduler allocate 20000 1000
end
12-23-2012 06:54 PM
Hi,
Did you also create the layer-2 vlan on the switch?
vlan 99
name mgmt-vlan
exit
is interface FastEthernet0/1 in up and up mode?
on the router
sh ip int bri
HTH
12-23-2012 06:54 PM
Hi,
How router and switch are connected to each other(ports)? Configure port that connected to router as access port on VLAN 99. F0/9 is port connected to PC?
Hope it will help.
12-23-2012 07:51 PM
Hi Philip,
If everything was working before and stopped by just adding SVI then turn on ip routing on your switch by running the command "ip routing". You are creating SVI for VLAN99 making it a routed VLAN, but you dont have routing process ON on the switch.
Terry
12-23-2012 08:28 PM
Hi Philip,
I guess the first question would be if the router is connected to switch. If router is on the same layer 2 vlan as your PC then you should be able to ping it. But by the description of your problem it appears that your router is not connected the same vlan.
Remember that when you configure SVI, the ip address that you give to your SVI becomes the default gateway for the hosts connected to that Vlan.
in this case, since your router has an ip address that is within the same subnet as the SVI, it makes sense to connect the router to the same Vlan and your pinging will work. For other Vlans to be able to reach the router, you should , as Terry suggested, enable IP routing. Creating SVI's would require routing, either use router-on-a-stick or simply enable routing by typing "ip routing" from global configuratoin mode.
Hope that helps.
Let us know how it goes
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