Wireshark-users: Re: [Wireshark-users] RIP vs Ping

From: Jaap Keuter <jaap.keuter@xxxxxxxxx>
Date: Thu, 11 Dec 2008 07:38:32 +0100

Hi,

RIP, routing information protocol tells routers what other routers can reach.

Case 1: So lapA is assumed to have a default gateway set at Router1, that will be the first stop of the ICMP echo. Then Router1 sees that the destination is a directly coupled interface, Router2, so it passed the ICMP echo there. Now Router2 may have a problem finding it's way back to the network on which lapA sits, since Router1 doesn't tell that it has that network. If Router2 has a default route through Router1 everything may end well. Case 2: Now if Router2 is listening for RIP it should know how to find its way back to lapA, namely through Router1.

It has been a while since I played with this stuff, so I may have left something out.

Thanx,
Jaap

PS: netkit is an ideal tool to play around with these kind of things.

jose john wrote:

Hi There,

Suppose I have a network like lapA-----Router1-----Ruoter2. Both R1 and R2 have the RIP disabled.

 Case1: What will happen if I ping R2 from lapA

Case2. What will happen if the RIP is enabled on R1 and am trying to ping R2 from lapA? Thanks,

Jose John