Posted on 2012-08-23
Last Modified: 2012-08-23
I have a PC connected to a Catalyst 3560 switch and nothing else is connected to the Catalyst. The PC can ping but not & Not sure why as I already have my ip routing on.

My PC is My vlans are:
vlan 10 -
vlan 20 -
vlan 1

Below is the simplified version of my L3 switch:

ip routing

int fa0/1
description connected to the PC
switchport access vlan 10
switchport mode access
int vlan 10
ip address

int vlan 20
ip address

int vlan 1
ip address
Question by:biggynet
    LVL 13

    Expert Comment

    ip route
    ip route
    ip route

    If you're using an access-lists to filter traffic:

    int vlan 10
    ip address
    ip policy route-map 101

    access-list 101 permit tcp any any
    access-list 101 permit udp any any
    access-list 101 permit icmp any any
    etc etc

    Author Comment

    ip route did not work. The error is invalid next hop address (it's the router)
    LVL 7

    Accepted Solution

    You have nothing else plugged into the switch.
    That means there are no active ports in vlan 20 or vlan 1.
    The switch will therefore set the SVIs vlan 1 and vlan 20 to down, hence they will not respond.

    do a 'show ip int brief' at the CLI and you will see what I mean.

    You can fix it by assigning a ports to vlan 1 and vlan 20, and plugging something into them.  You could also create a trunk port and plug something into it.
    You could also disable autostate on the vlan interface.

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