Basic IP CEF question (again) [7:75161]
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. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=75161&t=75161 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
RE: Basic IP CEF question (again) [7:75161]
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. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=75190&t=75161 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
RE: Basic IP CEF question (again) [7:75161]
Hi Zsombor, what do you mean?? Why the router has the broadcast IP in "receive" mode? I would like to know more about this ;) Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=75224&t=75161 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
RE: Basic IP CEF question (again) [7:75161]
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 ;) > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=75253&t=75161 -- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html