IP addresses

Chris Newman

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Dec 29, 2021, 8:22:54 AM12/29/21

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HI,
IIRC there is a way of finding out the IP addresses of devices connected
to a RISC OS m/c but for the life of me I can't remember what it was or
where I wrote it down. Can anyone help please?

--
Chris Newman

Theo

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Dec 29, 2021, 10:14:42 AM12/29/21

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Try *arp -a

Theo

Theo

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Dec 29, 2021, 10:17:02 AM12/29/21

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Or possibly *inetstat

(*arp -a tells you the IP addresses of everything the machine knows about,
*inetstat tells you what has open TCP connections right now or has recently
closed, including their ports)

Theo

Chris Newman

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Dec 29, 2021, 11:08:24 AM12/29/21

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In article <huk*67...@news.chiark.greenend.org.uk>, Theo

Thanks, Theo. That was exciting. Lots of stuff to look at. Now to see
what I recognize and what matches what. Much obliged.

--
Chris Newman

Martin

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Dec 29, 2021, 11:57:04 AM12/29/21

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In article <59a27e6d...@waitrose.com>,

The original question did not seem to clarify if you wanted the
- WAN Internet IP that RISC OS apps are connected to
*inetstat gives these
- LAN local IP that RISC OS knows about
*arp -a gives these
*fwshow gives discs and hosts connected using ShareFS
- LAN local IP that are connected to your network
If you have a phone or tablet then WiFiMan or one of the many
other similar apps can list all LAN devices. (iStuff may be more
restricted)

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Martin Avison
Note that unfortunately this email address will become invalid
without notice if (when) any spam is received.

Dave

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Dec 29, 2021, 2:27:21 PM12/29/21

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In article <59a27e6d...@waitrose.com>,
Chris Newman <cvj...@waitrose.com> wrote:

How confusing... RISC OS 6.20

Here *arp -a Displays "route-sysctl-estimate"

*inetstat Displays "kvm_nlist:"

I have no idea what either of those mean?

Not confusing is...

*fwshow Displays

"No remote nets

Type 1: (Discs)
*Name=Public Holder=192.168.0.4
*Name=VRPCD-620BF Holder=192.168.0.4
*Name=DRamDisc Holder=192.168.0.4
Name=FVRPC Holder=192.168.0.3

Type 2: (Printers)

Type 5: (Hosts)
*Name=Blackfan Holder=192.168.0.4"

That is correct.

Dave

--

Dave Triffid

druck

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Dec 29, 2021, 2:45:05 PM12/29/21

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On 29/12/2021 19:26, Dave wrote:
> How confusing... RISC OS 6.20
>
> Here *arp -a Displays "route-sysctl-estimate"
>
> *inetstat Displays "kvm_nlist:"
>
> I have no idea what either of those mean?

Try posting the full output.

---druck

Dave

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Dec 29, 2021, 3:19:50 PM12/29/21

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In article <sqids0$gfd$1...@dont-email.me>,

That is all I get...

What else should I get?

Dave

Straight out of the Task window.

*arp -a
route-sysctl-estimate
*
*inetstat
InetStat: kvm_nlist:
*

--

Dave Triffid

Theo

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Dec 29, 2021, 4:42:56 PM12/29/21

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Dave <da...@triffid.co.uk> wrote:
> That is all I get...
>
> What else should I get?
>
> Dave
>
> Straight out of the Task window.
>
> *arp -a
> route-sysctl-estimate
> *
> *inetstat
> InetStat: kvm_nlist:
> *

I think you're on VRPC? That doesn't have a RISC OS network stack, it just
piggybacks on Windows'. Hence commands for talking to the RISC OS network
stack don't work.

Theo

Dave

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Dec 30, 2021, 2:29:34 AM12/30/21

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In article <fuk*xw...@news.chiark.greenend.org.uk>,

Yes indeed it is VRPC.

I've now just run my old hardware SARPC (RISC OS 6.20) and get a different
result for *arp -a

*arp -a
router (192.168.0.1) at e8:48: Redacted.
faypc (192.168.0.3) at 94:de: Redacted.
blackfan (192.168.0.4) at 1c:1b: Redacted.
? (192.168.0.255) at (incomplete)
*
*inetstat
*
*fwshow

No remote nets

Type 1: (Discs)

*Name=Dave Holder=192.168.0.6
Name=Public Holder=192.168.0.4
Name=VRPCD-620BF Holder=192.168.0.4
Name=DRamDisc Holder=192.168.0.4

Type 2: (Printers)

Type 5: (Hosts)

*Name=dave Holder=192.168.0.6
Name=Blackfan Holder=192.168.0.4
*

Dave

--

Dave Triffid

Chris Newman

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Dec 30, 2021, 8:56:55 AM12/30/21

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In article <59a2d2d...@triffid.co.uk>, Dave <da...@triffid.co.uk>
wrote:

> In article <fuk*xw...@news.chiark.greenend.org.uk>, Theo
> <theom...@chiark.greenend.org.uk> wrote:
> > Dave <da...@triffid.co.uk> wrote:
> > > That is all I get...
> > >
> > > What else should I get?
> > >
> > > Dave
> > >
> > > Straight out of the Task window.
> > >
> > > *arp -a route-sysctl-estimate * *inetstat InetStat: kvm_nlist: *

> > I think you're on VRPC? That doesn't have a RISC OS network stack,
> > it just piggybacks on Windows'. Hence commands for talking to the
> > RISC OS network stack don't work.

> > Theo

> Yes indeed it is VRPC.

> I've now just run my old hardware SARPC (RISC OS 6.20) and get a
> different result for *arp -a

> *arp -a router (192.168.0.1) at e8:48: Redacted. faypc (192.168.0.3) at
> 94:de: Redacted. blackfan (192.168.0.4) at 1c:1b: Redacted. ?
> (192.168.0.255) at (incomplete) * *inetstat * *fwshow No remote nets

Oooer! I seem to have opened a little thread for discussion (AKA minnie
can of worms).

What does redacted mean? Is there a big black line through it like
government documents?

I also got some marked "incomplete". What does that mean?

--
Chris Newman

Theo

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Dec 30, 2021, 9:20:21 AM12/30/21

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Chris Newman <cvj...@waitrose.com> wrote:
> Oooer! I seem to have opened a little thread for discussion (AKA minnie
> can of worms).
>
> What does redacted mean? Is there a big black line through it like
> government documents?

I think that just means Dave removed some of the information to avoid
posting the exact MAC addresses on his system (which aren't a major privacy
risk in general, but fair enough)

> I also got some marked "incomplete". What does that mean?

*arp -a just gives a dump of the ARP cache - the mappings of IPs to MACs
that the machine has used recently.

'Incomplete' means the system tried to do an ARP request for a particular IP
but the ARP request failed. For example, you tried to talk to a machine
that is turned off - you wanted to talk to 192.168.1.33 so your machine
tried to work out what MAC address has that by issuing an ARP request. But
the machine was turned off, so your machine opened the entry in the ARP
table but nobody replied with a MAC address to fill it in. Similarly
broadcast addresses won't have anyone reply to the ARP request because there
isn't a real machine at that address.

Theo

Dave

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Dec 30, 2021, 10:41:07 AM12/30/21

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In article <guk*ia...@news.chiark.greenend.org.uk>,

Thanks Theo the precise answers.

Dave

--

Dave Triffid

Dave

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Dec 30, 2021, 10:41:08 AM12/30/21

to

In article <59a2f5f2...@waitrose.com>,

Chris Newman <cvj...@waitrose.com> wrote:
> In article <59a2d2d...@triffid.co.uk>, Dave <da...@triffid.co.uk>
> wrote:
> > In article <fuk*xw...@news.chiark.greenend.org.uk>, Theo
> > <theom...@chiark.greenend.org.uk> wrote:
> > > Dave <da...@triffid.co.uk> wrote:
> > > > That is all I get...
> > > >
> > > > What else should I get?
> > > >
> > > > Dave
> > > >
> > > > Straight out of the Task window.
> > > >
> > > > *arp -a route-sysctl-estimate * *inetstat InetStat: kvm_nlist: *

> > > I think you're on VRPC? That doesn't have a RISC OS network stack,
> > > it just piggybacks on Windows'. Hence commands for talking to the
> > > RISC OS network stack don't work.

> > > Theo

> > Yes indeed it is VRPC.

> > I've now just run my old hardware SARPC (RISC OS 6.20) and get a
> > different result for *arp -a

> > *arp -a router (192.168.0.1) at e8:48: Redacted.
> > faypc (192.168.0.3) at 94:de: Redacted.
> > blackfan (192.168.0.4) at 1c:1b: Redacted.

> > (192.168.0.255) at (incomplete)

> Oooer! I seem to have opened a little thread for discussion (AKA minnie
> can of worms).

> What does redacted mean? Is there a big black line through it like
> government documents?

> I also got some marked "incomplete". What does that mean?

Chris, Theo has answered concisely... but one expansion...

It is somewhat difficult in an email to black line out some text/numerics,
so to indicate I had removed some of the MAC data for each device
(Security) I replaced the missing with "Redacted".

Dave

--

Dave Triffid

Chris Newman

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Dec 30, 2021, 11:19:03 AM12/30/21

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In article <59a2ffb...@triffid.co.uk>, Dave <da...@triffid.co.uk>
wrote:

> > What does redacted mean? Is there a big black line through it like
> > government documents?

> > I also got some marked "incomplete". What does that mean?

> Chris, Theo has answered concisely... but one expansion...

> It is somewhat difficult in an email to black line out some
> text/numerics, so to indicate I had removed some of the MAC data for
> each device (Security) I replaced the missing with "Redacted".

I did ask tongue in cheek. I should have added a smiley. ;-)

--
Chris Newman

Chris Evans (CJE/4D)

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Jan 6, 2022, 7:53:50 AM1/6/22

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In article <59a281f9...@avisoft.f9.co.uk>, Martin

Also if you can get to the relevant page your router will give various
information about what is connected to it.

Chris Evans

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