[c-nsp] 3560 SVI

[Rob Taylor]

Was the IP configured manually or received via dhcp?  DHCP learned 
default route could be injected if the latter.

I believe we can still have a default route, without unicast routing 
enabled.  I thought we defined unicast routing to be between L3 
interfaces on the device, but for management purposes could still have a 
route defined.

Sorry ... been a while since I worked on a non-L3 switch, but figured I 
would take a stab.

Rob

On 11/16/2010 12:17 PM, Brandon Ewing wrote:
> On Tue, Nov 16, 2010 at 01:06:43PM -0400, Sharlon R. Carty wrote:
>    
>> Hello,
>>
>> I have a odd situation. I created a SVI on a 3560 switch, assigned an IP
>> address(public) without enabling ip routing and I was able to remotely
>> access the switch.
>> No default route added or anything like that. So how is it that I am able to
>> access the switch?
>>   switch is connected to another switch which has a trunk connection to a
>> cisco 7206.
>>      
> If the source IP that you are connecting from is in the same subnet as the
> SVI you created, a return route exists via connected interface, and no
> default route is needed.
>
> Another case would be an incorrect netmask, with proxy-arp enabled on
> another ip-routing device in the broadcast network.
>
>    
>
>
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