JMHO - comment below:
""richard dumoulin"" wrote in message
news:[EMAIL PROTECTED]...
> Priscilla,
>
> Do you remember the discussion about IP unnumbered ? Sure you do. You
wrote
> "Now, network management is a concern, however. If your serial interface
is
> unnumbered, you can't ping it or se
At 6:25 PM + 7/21/02, Leigh Anne Chisholm wrote:
>Theoretically, if you put an IP address on a cow, I bet you could ping the
>cow. You might need a sling-shot though... for the implementation to work
>properly, but I'd bet you'd get a response!
Doesn't Gateway already put them there? Someb
I don't see a conflict either. The ISP's responsibility ends at the
external gateway router, unless maintenance is outsourced. If the
ISP provides the router, it may be responsible for the LAN interface,
but not for the reachability of devices on that LAN. More commonly,
the ISP simply needs
At 5:25 PM + 7/21/02, richard dumoulin wrote:
>Well, I interpret it that you can ping the serial, no ?
>
I would assume that. It makes no sense for an ISP to use unnumbered
interfaces, because it easily can use /30 or /31 private addresses.
It could use a small part of its registered addres
""Howard C. Berkowitz"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> At 6:25 PM + 7/21/02, Leigh Anne Chisholm wrote:
> >Theoretically, if you put an IP address on a cow, I bet you could ping
the
> >cow. You might need a sling-shot though... for the implementation to
work
""Howard C. Berkowitz"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> At 5:25 PM + 7/21/02, richard dumoulin wrote:
> >Well, I interpret it that you can ping the serial, no ?
> >
>
> I would assume that. It makes no sense for an ISP to use unnumbered
> interfaces, because it
I gather that the lack of response from Priscilla herself in indicative that
she, at least, has some kind of life ;->
Chuck
""richard dumoulin"" wrote in message
news:[EMAIL PROTECTED]...
> Priscilla,
>
> Do you remember the discussion about IP unnumbered ? Sure you do. You
wrote
> "Now, ne
It would help if you quoted msg's in your responses btw :)
The ISP essentials book does not indicate that the interfaces would be
pingable, simply that ISP's can generally tolerate the LAN side of a
customer prem router changing state without an alarm being triggered due to
the in between seri
Peter ,
The book says clearly that the interface is pingable. Even more, I have
tried it and it really works. I just took two routers connected by
back_to_back serial cables with IP unnumbered configured on both. When I
unplugg the Lan interface of one them, this router is still reachable by the
I have even put the ethernet into shutdown !!
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Richard, not that I doubt you ( because I have never tried this myself ) but
would you mind posting the relevant configs and the results of the ping to
the list so we all can see? simple cut and paste is fine.
Knowing that it works, lets see if intellectually speaking we can come up
with a good e
No prob, see below.
RB#sh run
Building configuration...
Current configuration:
!
version 11.2
no service password-encryption
no service udp-small-servers
no service tcp-small-servers
!
hostname RB
!
enable password cisco
!
no ip domain-lookup
!
interface Ethernet0
ip address 192.168.1.1 255.2
As you see, the serial are configured with IP unnumbered, but when "deb IP
packet" is on, It is as if the IP address belongs to the serial interface.
Regards.
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I'll be, this must be a "new" feature as I know this wasn't always the
case.
Dave
richard dumoulin wrote:
>
> No prob, see below.
>
> RB#sh run
> Building configuration...
>
> Current configuration:
> !
> version 11.2
> no service password-encryption
> no service udp-small-servers
> no serv
That is good. I wasn't saying necessarily that it wasn't, I was just
saying that the ISP essentials quote you gave didn't say that it wasn't
specifically.
Again though, can you quote msgs to make the trail easier for those of us
who don't a) read the newsgroup, and b) arrange by threads.
tks
So your saying that you configured the serial interface with ip
unnumbered, sourcing the ethernet interface of the repective routers.
If you shut down the ethernet you can still access the remote router
over the serial??
This is something new or have I been out of the unnumbered game too
long!
At 08:04 PM 7/21/2002 +, Chuck wrote:
>""Howard C. Berkowitz"" wrote in message
>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> > At 5:25 PM + 7/21/02, richard dumoulin wrote:
> > >Well, I interpret it that you can ping the serial, no ?
> > >
> >
> > I would assume that. It makes no sense
hhm learn something new every day. thanks.
that still gets back to how ip unnumbered "really" works, as opposed to how
most of us "think" it works. RFC 1812 specifically talks about using the RID
as the interface address:
"this memo has adopted an alternate scheme, which has been in
Chuck wrote:
>
> hhm learn something new every day. thanks.
>
> that still gets back to how ip unnumbered "really" works, as
> opposed to how
> most of us "think" it works. RFC 1812 specifically talks about
> using the RID
> as the interface address:
>
> "this memo has adopted an al
y relfect those of AT&T Government Solutions, Inc., it's
management, or it's affiliates.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
richard dumoulin
Sent: Monday, July 22, 2002 1:50 PM
To: [EMAIL PROTECTED]
Subject: Re: Priscilla Oppenhe
hhm learn something new every day. thanks.
that still gets back to how ip unnumbered "really" works, as opposed to how
most of us "think" it works. RFC 1812 specifically talks about using the
RID
as the interface address:
"this memo has adopted an alternate scheme, which has bee
richard dumoulin wrote:
>
> Priscilla,
>
> Do you remember the discussion about IP unnumbered ? Sure you
> do. You wrote "Now, network management is a concern, however.
> If your serial interface is unnumbered, you can't ping it or
> send it SNMP messages. With those functions, the serial port
are those of the author alone,
> and do not
> necessarily relfect those of AT&T Government Solutions, Inc.,
> it's
> management, or it's affiliates.
>
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
> Behalf Of
> richard
> I think I come to the same conclusion that you did, which is that you can
> ping an unnumbered serial interface. It's kind of stretching the truth
> though. You're pinging the router, but are you really pinging the serial
> interface when you're using an address that is not associated with the
>
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