[c-nsp] 3750 ip direct brioadcast

[Brian Turnbow]

The ping comes from external devices, not the switch itself 

-----Original Message-----
From: McLean Pickett [mailto:McLean.Pickett at ptgcorp.com] 
Sent: mercoledì 14 settembre 2005 18.36
To: Brian Turnbow; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] 3750 ip direct brioadcast 


Brian -

Are you pinging the switch from the switch or are you pinging the VLAN
interface from a connected device? 

I would try the ping test from a connected device rather than the switch
itself for a more reliable test.

McLean
-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Brian Turnbow
Sent: Wednesday, September 14, 2005 12:23 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] 3750 ip direct brioadcast 



Hello all,
I have a couple of 3750s image on the boxes is 12.2(20)SE1 trunked back
on to the network all done with static routing. 
So I have int vlan 82 with an IP address and some ports set up as L3
ports with an IP address. 
All interfaces have ip direct broadcast disabled , and doing a show ip
int xxx I can see Directed broadcast forwarding is disabled On all
interfaces (even vlan interface) But the switch responds (from the vlan
interface) to the FE ports broadcast address.

So basically I have
Int vlan 82
Ip address 10.1.1.1 255.255.255.0 

And
Int fast 1/0/1
Ip address 192.168.0.1 255.255.255.0 


A ping gets sent to 192.168.1.255 , and the router responds from the
10.1.1.1 address with an echo reply. 

Anyone else seen this or have any ideas ?

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