Re: Dynagen Interface Issue

Hi Myung-Soo,

Yes, I think it is a dynamips/dynagen problem.

Is your SW1 interface a routed port?

I had this same issue before. Resolved it by configuring the interface as a
switchport then replacing the routed interface with an SVI. Of course you
have to then put the switchport interface in the same VLAN as the SVI
created.

HTH.

Bobola O. Oke

On Sat, Oct 15, 2011 at 6:22 AM, Adrian <ccie2323_at_gmail.com> wrote:

> I have similar issues at random when I was doing my studies. For me I just
> restart the dynagen and it will work.
>
> On Oct 14, 2011, at 7:25 PM, "Tony Schaffran \(GS\)" <
> groupstudy_at_cconlinelabs.com> wrote:
>
> > Welcome to dynamips.
> >
> > Tony Schaffran
> > Sr. Network Consultant
> > CCIE #11071
> > CCNP, CCNA, CCDA,
> > NNCDS, NNCSS, CNE, MCSE
> >
> >
> > -----Original Message-----
> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> > Myung-Soo Ko
> > Sent: Friday, October 14, 2011 1:59 AM
> > To: HEMANTH RAJ
> > Cc: Cisco certification
> > Subject: Re: Dynagen Interface Issue
> >
> > Hello, Hemanth
> >
> > Thank you for your reply. Well, I know what exactly the error message
> means.
> > I even manually added arp mapping, so it still deosn't work.
> > So, I wonder whether this is a known dynagen/gns3 issue or not. If so,
> can
> > anyone help me with a possible solution.
> >
> > Regards,
> > Myung-Soo
> >
> > On Fri, Oct 14, 2011 at 4:57 PM, HEMANTH RAJ <hemanthrj_at_gmail.com>
> wrote:
> >
> >> Hi Myung,
> >>
> >> Encapsulation failed states that there is no appropriate L2 mapping done
> >> for that particular destination or next hop to reach that destination.
> >> So check ur arp table or frame mapping table .for the next hop mapping
> or
> >> the destination mapping.
> >>
> >> Regards
> >> Hemanth Raj
> >> CCIE#28593 (R&S)
> >>
> >> On Fri, Oct 14, 2011 at 1:02 PM, Myung-Soo Ko <bacchus21_at_gmail.com>
> wrote:
> >>
> >>> Hello, GS
> >>> I build a Dynagen based virtual lab but I'm currently having a very
> >>> strange
> >>> interface related issue.
> >>>
> >>> R1(8.8.3.1) - SW1(8.8.3.3)
> >>>
> >>> From R1, I'm not able to ping to any other interfaces, so I captured
> > debug
> >>> ip packet msg, and it says "encapsulation failed". I copied .net file
> as
> >>> well as IOS file from another PC, but there was no issues on another
> PC.
> >>>
> >>> Is it a known dynagen bug? I'm not sure what's causing this problem.
> Does
> >>> anyone have a clue?
> >>> Please advise me. I really appreciate.
> >>>
> >>> Regards,
> >>> Myung-Soo
> >>>
> >>>
> >>>
> >
> ----------------------------------------------------------------------------
> > ----------------------------------------------------------------
> >>> R1#ping 8.8.3.3
> >>> Type escape sequence to abort.
> >>> Sending 5, 100-byte ICMP Echos to 8.8.3.3, timeout is 2 seconds:
> >>> *Mar 1 01:26:03.499: IP: tableid=0, s=8.8.3.1 (local), d=8.8.3.3
> >>> (FastEthernet0/0), routed via RIB
> >>> *Mar 1 01:26:03.503: IP: s=8.8.3.1 (local), d=8.8.3.3
> (FastEthernet0/0),
> >>> len 100, sending
> >>> *Mar 1 01:26:03.507: IP: s=8.8.3.1 (local), d=8.8.3.3
> (FastEthernet0/0),
> >>> len 100, encapsulation failed.
> >>> *Mar 1 01:26:05.499: IP: tableid=0, s=8.8.3.1 (local), d=8.8.3.3
> >>> (FastEthernet0/0), routed via RIB
> >>> *Mar 1 01:26:05.503: IP: s=8.8.3.1 (local), d=8.8.3.3
> (FastEthernet0/0),
> >>> len 100, sending
> >>> *Mar 1 01:26:05.507: IP: s=8.8.3.1 (local), d=8.8.3.3
> (FastEthernet0/0),
> >>> len 100, encapsulation failed.
> >>> *Mar 1 01:26:07.499: IP: tableid=0, s=8.8.3.1 (local), d=8.8.3.3
> >>> (FastEthernet0/0), routed via RIB
> >>> *Mar 1 01:26:07.503: IP: s=8.8.3.1 (local), d=8.8.3.3
> (FastEthernet0/0),
> >>> len 100, sending
> >>> *Mar 1 01:26:07.507: IP: s=8.8.3.1 (local), d=8.8.3.3
> (FastEthernet0/0),
> >>> len 100, encapsulation failed.
> >>> *Mar 1 01:26:09.499: IP: tableid=0, s=8.8.3.1 (local), d=8.8.3.3
> >>> (FastEthernet0/0), routed via RIB
> >>> *Mar 1 01:26:09.503: IP: s=8.8.3.1 (local), d=8.8.3.3
> (FastEthernet0/0),
> >>> len 100, sending
> >>> *Mar 1 01:26:09.507: IP: s=8.8.3.1 (local), d=8.8.3.3
> (FastEthernet0/0),
> >>> len 100, encapsulation failed.
> >>> *Mar 1 01:26:11.499: IP: tableid=0, s=8.8.3.1 (local), d=8.8.3.3
> >>> (FastEthernet0/0), routed via RIB
> >>> *Mar 1 01:26:11.503: IP: s=8.8.3.1 (local), d=8.8.3.3
> (FastEthernet0/0),
> >>> len 100, sending
> >>> *Mar 1 01:26:11.507: IP: s=8.8.3.1 (local), d=8.8.3.3
> (FastEthernet0/0),
> >>> len 100, encapsulation failed.
> >>> Success rate is 0 percent (0/5)
> >>> R1#
> >>>
> >>>
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> >>>
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> >>>
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> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>
> >>
> >> --
> >> Problems arise because we talk,problems are not solved because we don't
> >> talk So good or bad talk to your affectionate one's freely.
> >>
> >> Yours Friendly,
> >> H P HEMANTH RAJ
> >> CCIE#28593 (R&S)
> >> Cisco Systems
> >
> >
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Received on Sat Oct 15 2011 - 10:00:38 ART