John, thanks for the feedback. So PC2 doesn't have a default gateway configured and will send a broadcast for the address of PC1. Since router B is on the same subnet and "knows" where PC1 is, shouldn't it respond as a proxy?
-H ----- Original Message ----- From: "John Neiberger" To: Sent: Monday, May 13, 2002 5:13 PM Subject: Re: ARP problems, anyone? [7:44108] > Unless you're bridging, ARP doesn't function here the way I _think_ you > think it does. > > If PC2 receives an incoming ICMP echo request and it wants to generate > a response, it first compares the network portion of the destination > address to its own subnet. If you're not bridging they will be > different. In that case, PC2 will not send an ARP request for PC1, it > will simply forward the packet to the default gateway. > > Of course, at some point PC2 will send an ARP request to get the > hardware address of Router B, but it will never need to know the > hardware address of PC1. > > Now, if you're bridging then PC1 and PC2 should be on the same subnet > and neither would require a default gateway to speak to the other. > > HTH, > John > > >>> "Henrique Duarte" 5/13/02 2:50:43 PM >>> > OK Networking gurus. I hope you can help me with this easy one: > > > > e0 e1 e0 e1 > PC1-------router A----------routerB---------PC2 > > > PC1 can ping routerB (e1) > PC2 can ping routerA (e0) > > PC1 cannot ping PC2 > > > PC2 has NO default gateway (and is not supposed to have one). I've > added a > static arp entry on PC2: PC1's IP address point to routerB e1's MAC > address. Why do I need the default gateway even though I already > configured > a static arp entry on PC2? > > Thanks in advance, > > -H Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=44139&t=44108 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
