this make sense, thanks..
Grad
>From: "Arthur Simplina"
>Reply-To: "Arthur Simplina"
>To: [EMAIL PROTECTED]
>Subject: RE: QUERY ON FRAME RELAY, Can't ping to it's own i [7:13875]
>Date: Sat, 28 Jul 2001 00:28:01 -0400
>
>I am not an expert in frame relay but let me share my experience in the
>classroom lab where we did this exercise on frame relay.
>
>I have the same situation where from the local router I can't ping the
>interface that is connected to the frame relay. I also cannot ping the
>ethernet ip address of another router in the other frame relay connection.
>
>I was asked that question why I can't ping the local interface with the
>frame relay connection. I can't seem to find an answer but managed to say
>that since the "ping command" is on the layer 3 and the serial interface in
>encapsulated in frame relay (which is layer 2), so the ping command fails
>as
>it cannot locate the layer 3 ip address of the serial interface that is
>mapped to the dlci which is layer 2. I hope that it makes sense and you got
>my point.
>
>As to why I cannot ping the ethernet ip address of the other router, the
>reason is that the ping source ip address carries the serial interface ip
>address that is inversed mapped to the frame relay connection which it
>cannot locate and that is why it fails. But if I do an extended ping
>specifying the source ip address of the ethernet of the local router, the
>ping is successful which means that I have a full connectivity across the
>frame relay cloud to the other LAN segments of the other routers.
>
>Perhaps, a frame relay expert could clarify this further.
>
>Cheers,
>
>Art S.
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