From: Stephen Austin (routepackets@xxxxxxxxxxxxx)
Date: Tue Apr 03 2001 - 22:06:35 GMT-3
or, use the right arrow key.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Andy Jackson
Sent: Tuesday, April 03, 2001 3:22 AM
To: ccielab@groupstudy.com; ron@xtranetsolutions.com
Subject: Re: how to recover if exec-timeout 0 1
Ron,
The method I use is to log into the router, enter config mode and change the
exec-timeout whilst at the same time continually hitting the <TAB> key. As
long as the router sees at least one keystroke per second it will not log
you out.
It may take a couple of practice goes but it does work...
aj...
>>> "Ron Z." <ron@xtranetsolutions.com> 04/03/01 05:17am >>>
Hi, Guys,
This question may be too simple for you, but I don't know. I'm playing with
troubleshooting. If the "exec-timeout 0 1" is set up on "line 0", "line vty
0 4", "line aux 0", it is impossible for me do disable "exec-timeout 0 1"
within one second. I think about using the same procedures for password
recovery. But there may be some other short-cut to do it. Is there anybody
know this trick?
Thanks in advance,
Ron
----- Original Message -----
From: Shawn Bowen <shawn@bowen.com>
To: 'tom cheung' <tkc9789@hotmail.com>; <ccielab@groupstudy.com>
Sent: Monday, April 02, 2001 10:37 PM
Subject: RE: Proxy ARP
> According to Cisco IDRP uses Router-Advertisement and Router-Solicitation
> messages to discover the addresses of routers on directly attached
subnets.
> Each router periodically multicasts Router-Advertisement messages from
each
> of its interfaces. Hosts then discover addresses of routers on directly
> attached subnets by listening for these messages. Hosts can use
> Router-Solicitation messages to request immediate advertisements rather
than
> waiting for unsolicited messages.
> IRDP offers several advantages over other methods of discovering addresses
> of neighboring routers. Primarily, it does not require hosts to recognize
> routing protocols, nor does it require manual configuration by an
> administrator.
> Router-Advertisement messages enable hosts to discover the existence of
> neighboring routers, but not which router is best to reach a particular
> destination. If a host uses a poor first-hop router to reach a particular
> destination, it receives a Redirect message identifying a better choice.
> Shawn
>
> -----Original Message-----
> From: tom cheung [mailto:tkc9789@hotmail.com]
> Sent: Monday, April 02, 2001 7:46 PM
> To: ccielab@groupstudy.com
> Subject: RE: Proxy ARP
>
> What about IRDP? How would one set up a Windows client without a default
> gateway and take advantage of IRDP?
>
>
> >From: "Pickell, Aaryn" <Aaryn.Pickell@getronics.com>
> >Reply-To: "Pickell, Aaryn" <Aaryn.Pickell@getronics.com>
> >To: "'Bowen, Shawn'" <sbowen@neteffectcorp.com>, Tariq Sharif
> ><tariq_sharif@btinternet.com>, "Ccielab@Groupstudy. Com"
> ><ccielab@groupstudy.com>
> >Subject: RE: Proxy ARP
> >Date: Mon, 2 Apr 2001 19:23:05 -0400
> >
> >Proxy arp is also useful when you have your subnet masks misconfigured.
> >Say, for example, the router has two /24 segments attached. If there is
a
> >host configured with a /23 instead, it will try arping for addresses
which
> >are not actually directly connected. The router will respond with its
own
> >MAC and then forward the traffic.
> >
> >They use this in access servers as well. Assume a large modem bank on an
> >AS5300, with a bunch of users dialing in. Each of these users is given
an
> >address from the segment that's attached to the ethernet segment. When
> >hosts actually on that ethernet wish to talk to the dial-in users, they
> >believe them to be directly connected, so they arp. The AS5300 will
> >respond
> >with its own MAC and forward the packets correctly.
> >
> >Aaryn Pickell - CCNP, CCDP, MCSE
> >Senior Engineer - Routing Protocols
> >Getronics Inc.
> >Direct: 713-394-1609
> >Email:aaryn.pickell@getronics.com
> >
> >
> > > -----Original Message-----
> > > From: Bowen, Shawn [mailto:sbowen@neteffectcorp.com]
> > > Sent: Monday, April 02, 2001 5:50 PM
> > > To: Tariq Sharif; Ccielab@Groupstudy. Com
> > > Subject: RE: Proxy ARP
> > >
> > >
> > > With Microsoft clients there is a way to "Set all segments as
> > > local" so to
> > > speak, I forget how off the top of my head but this will work
> > > as well. Now
> > > as to proxy ARP, the workstation, be it Unix or Microsoft looks at the
> > > destination IP and compares it's own IP and MASK to see if it
> > > is local, if
> > > it is then it will be encapsulated in an Ethernet (or whatever other
> > > topology you are using) frame and then put on the wire, if
> > > the destination
> > > network is on a different segment then your machine will not
> > > know what to do
> > > with it unless there is a default gateway setup (or you set
> > > "all subnets
> > > local"). This is why you are seeing this; it is perfectly
> > > normal in the
> > > Unix, Novell, and Windows world.
> > >
> > > As another example. With a Microsoft dial-up
> > > networking setup you
> > > set it to obtain it's address automatically, sometime do a
> > > "winipcfg" on
> > > 95/98 or an ipconfig /all in NT and check out your IP and
> > > Default gateway,
> > > they will normally be the same, this is because the ISP is
> > > doing proxy arp
> > > and the machine then knows to send ALL traffic to the
> > > interface as local
> > > traffic, the router will deal with the rest.
> > >
> > > Shawn
> > >
> > > -----Original Message-----
> > > From: Tariq Sharif [mailto:tariq_sharif@btinternet.com]
> > > Sent: Monday, April 02, 2001 6:31 PM
> > > To: Ccielab@Groupstudy. Com
> > > Subject: Proxy ARP
> > >
> > > In Doyle's TCP/IP book (page 69-70) & in other text there is
> > > about Proxy
> > > ARP. Says that hosts without any default gateway can be issue
> > > ARP & LAN
> > > router (knowing where the destination is) will issue PROXY
> > > ARP reply. So the
> > > local host (without default gateway) can reach remote hosts.
> > > I can't see
> > > this working with NT 4 or Win 95 unless I assign the PCs own
> > > address as its
> > > default gateway. My question is, do Unix clients behave the same as
> > > Microsoft clients? If so, what am I missing?
> > >
> > >
> > > Many thanks & regards.
> > >
> > > Tariq Sharif
> > >
> > > [demime 0.98b removed an attachment of type
> > > application/ms-tnef which had a
> > > name of winmail.dat]
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