From: Rajeev Siddappa (raj_lab@xxxxxxxxx)
Date: Mon Nov 19 2001 - 15:11:08 GMT-3
Hi,
When the packet goes out of interface it will be layer
2 and when it come sout to u r framely interafce the
layer 2 packet will look for an mapping. which it will
not find, because there is no mapping. It will result
in encapsulation error.
I think it clears u r doubt.
Rajeev.
--- Fanglo MA <fangloma@pacific.net.hk> wrote:
> Dear ALL,
>
> Eventually I get done to ping the FR own interface!
> It is something wrong
> setting in my switch. But it comes up to my mind
> that why the interface
> or the IOS cannot return at layer 3 when the source
> and target layer 3
> address is the same as one of its interface address
> but go down into layer
> 2?
>
> Regards,
> Fanglo
>
> On Mon, 19 Nov 2001, Fanglo MA wrote:
>
> > Hi,
> >
> > Still no luck with no frame-relay inverse-arp.
> show frame-relay pvc still
> > note me the DCLI is deleted. Have search CCO but
> can get any useful info
> > concerning about deleted DCLI and under what
> situation DCLI will be
> > deleted. Does it need some script in FR-switch to
> enable it?
> >
> > Regards,
> > Fanglo
> >
> > On Sun, 18 Nov 2001, Maurizio Roggia wrote:
> >
> > > no frame-relay inverse-arp
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com
> [mailto:nobody@groupstudy.com]On Behalf Of
> > > Fanglo MA
> > > Sent: 18 November 2001 16:28
> > > To: Joseph H Marti
> > > Cc: ccielab@groupstudy.com
> > > Subject: Re: Can't ping FR own interface
> > >
> > >
> > > Dear Joseph,
> > >
> > > To simplify the case, the same actually happen
> at R4. i.e. R4 cannot ping
> > > itself serial 0. I add the config with R4 as:
> > >
> > > host r4
> > > !
> > > int s0
> > > ip address 192.168.252.4 255.255.255.0
> > > encap frame
> > > frame-relay map ip 192.168.252.3 321
> > > frame-relay map ip 192.168.252.4 123
> > > frame-relay interface-dlci 123
> > > no shut
> > > !
> > >
> > > BUT THE SAME CASE HAPPEN! I still be timeout.
> I'm using 12.1.11 image. Any
> > > suggestion?
> > >
> > > Regards,
> > > Fanglo
> > >
> > > On Sun, 18 Nov 2001, Joseph H Marti wrote:
> > >
> > > > There's no layer 3 to layer 2 mapping. Add FR
> map statement with local IP
> > > > address and dlci.
> > > >
> > > > ----- Original Message -----
> > > > From: "Fanglo MA" <fangloma@pacific.net.hk>
> > > > To: <ccielab@groupstudy.com>
> > > > Sent: Sunday, November 18, 2001 6:39 AM
> > > > Subject: Can't ping FR own interface
> > > >
> > > >
> > > > > Hi ALL,
> > > > >
> > > > > I am reviewing FR and find that I cannot
> ping the router own FR serial.
> > > I
> > > > > can ping from other routers via the FR but I
> cannot ping itself from the
> > > > > router. I can ping other own serial
> interface from the router too.
> > > Anyone
> > > > > would have suggestions or reason why I can't
> ping? Below is my config.
> > > > >
> > > > > R3 config
> > > > > host r3
> > > > > !
> > > > > int s0
> > > > > ip address 192.168.252.3 255.255.255.0
> > > > > encap frame
> > > > > frame-relay map ip 192.168.252.4 123
> > > > > frame-relay map ip 192.168.252.5 124
> > > > > no shut
> > > > > !
> > > > > int s1
> > > > > ip address 192.168.250.3 255.255.255.0
> > > > > no shut
> > > > > !
> > > > >
> > > > > R4 config
> > > > > host r4
> > > > > !
> > > > > int s0
> > > > > ip address 192.168.252.4 255.255.255.0
> > > > > encap frame
> > > > > frame-relay map ip 192.168.252.321
> > > > > no shut
> > > > > !
> > > > >
> > > > > R5 config
> > > > > host r5
> > > > > !
> > > > > int s0
> > > > > ip address 192.168.252.4 255.255.255.0
> > > > > encap frame
> > > > > frame-relay map ip 192.168.252.3 421
> > > > > no shut
> > > > > !
> > > > >
> > > > > R4, R5 can do ping to R3
> > > > > R3 can do ping to R4, R5
> > > > >
> > > > > R3 can do ping to its s1
> > > > > BUT R3 TIMEOUT WHEN PING ITS S0.
> > > > >
> > > > > Regards,
> > > > > Fanglo
>
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