Basic IP CEF question (again) [7:75161]

2003-09-10 Thread Curious 
The history:

Author: Zsombor Papp (---.dsl.snfc21.pacbell.net)
Date:   09-08-03 14:47

It means that's the router's own IP address. 

Thanks, 

Zsombor 

Curious wrote: 
> 
> Hello dear friends, 
> I would like to know the meaning of the keyword "receive" that I 
> can see when I execute a "show ip cef" command: 
> 
> For example: 
> 
> show ip cef 
> Prefix Next Hop Interface 
>  
>  
> 10.64.15.224/32 receive 
> 
> What means that the "next-hop" is "receive". 
> 
> More details: 
> 
> ROUTER#sh ip route 10.64.15.224 
> Routing entry for 10.64.15.224/28 
> Known via "connected", distance 0, metric 0 (connected, via 
> interface) 
> Redistributing via ospf 10 
> Advertised by ospf 10 subnets 
> Routing Descriptor Blocks: 
> * directly connected, via FastEthernet4/1/0.30 
> Route metric is 0, traffic share count is 1 
> 
> Any comments?? Bye and Thx 
> 
> 

My comments:

Hello Zsombor, I can see IP addresses that doesn't belong to the router, for
example:
Router#sh ip cef | include 10.224.0.51
10.224.0.51/32  receive

But the IP address of the router in the subnet is:

 10.224.0.49

The subnet is:

 10.224.0.48/30

So the IP address 10.224.0.51 is the broadcast address of the 
router in the network, but not the IP owned by the router.
What do you think??
Thx a lot.


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RE: Basic IP CEF question (again) [7:75161]

2003-09-10 Thread Zsombor Papp 
Well, the accurate answer is that those are the packets that the router
wants to receive (as opposed to switch), but I didn't think that this would
be a lot of help. :)

You do recognize the common theme across "own IP address" and "broadcast of
local net", don't you?

Thanks,

Zsombor

> My comments:
> 
> Hello Zsombor, I can see IP addresses that doesn't belong to
> the router, for example:
> Router#sh ip cef | include 10.224.0.51
> 10.224.0.51/32  receive
> 
> But the IP address of the router in the subnet is:
> 
>  10.224.0.49
> 
> The subnet is:
> 
>  10.224.0.48/30
> 
> So the IP address 10.224.0.51 is the broadcast address of the 
> router in the network, but not the IP owned by the router.
> What do you think??
> Thx a lot.


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RE: Basic IP CEF question (again) [7:75161]

2003-09-11 Thread Curious 
Hi Zsombor, what do you mean?? Why the router has the broadcast IP in 
"receive" mode?
I would like to know more about this ;)



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RE: Basic IP CEF question (again) [7:75161]

2003-09-11 Thread Zsombor Papp 
Broadcast means everybody receives it.

 Curious wrote:
> 
> Hi Zsombor, what do you mean?? Why the router has the broadcast
> IP in
> "receive" mode?
> I would like to know more about this ;)
> 


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