7d5a5c70
From: barmar@alum.mit.edu
In article
,
Birkemose wrote:
> @David
>
> Well, I tried using ARP, but there is no -an switch in my version of
> ARP. ( Windows 7 Evaluation )
> Trying ARP -a gives me this list. ( No 192.168.128.129 as you might
> notice, even if I can ping it )
The controllers appear to be on a different network from you. Your PC
is on the 10.211.55.0/24 network, but the controllers are on
192.168.128.0/24. So the PC sends to the controllers through a router,
and you need to look at *its* ARP table.
>
> Interface: 10.211.55.3 --- 0xb
> Internet Address Physical Address Type
> 10.211.55.1 00-1c-42-00-00-18 dynamic
> 10.211.55.255 ff-ff-ff-ff-ff-ff static
> 224.0.0.22 01-00-5e-00-00-16 static
> 224.0.0.251 01-00-5e-00-00-fb static
> 224.0.0.252 01-00-5e-00-00-fc static
> 239.255.255.250 01-00-5e-7f-ff-fa static
> 255.255.255.255 ff-ff-ff-ff-ff-ff static
>
> Anyway.
> As most of you guys stated, the problem was with the MAC address.
> The TCP software from Keil hardcoded the same MAC address into the
> ethernet controller, but after "hacking" into the driver, I was able
> to use the dipswitch we use for setting the IP address, to also set
> the MAC address, and voila ... it worked.
>
> Thanks for Your input on this, and for guiding me in the right
> direction.
>
> /Birkemose
>
>
>
> On 11 Nov., 08:36, Char Jackson wrote:
> > On Wed, 11 Nov 2009 01:22:02 +0000 (UTC), Rick Jones
> >
> > wrote:
> > >Birkemose wrote:
> > >> I am unfamiliar with ARP, but if I use ARP -a, I get a list of
> > >> addresses, but none of them are 192.168.128s Forgive me if I know
> > >> little about these things.
> >
> > >I cannot claim familiarity with Windows arp myself, but if the arp -a
> > >output is all "names" and not all IP addresses you may need to add
> > >(I'm guessing) a -n to that command line to prevent it from
> > >translating IP addresses back to hostnames.
> >
> > >rick jones
> >
> > It seems to display IP addresses, as expected.
> >
> > Microsoft Windows XP [Version 5.1.2600]
> > (C) Copyright 1985-2001 Microsoft Corp.
> >
> > D:\>arp /?
> >
> > Displays and modifies the IP-to-Physical address translation tables
> > used by address resolution protocol (ARP).
> >
> > ARP -s inet_addr eth_addr [if_addr]
> > ARP -d inet_addr [if_addr]
> > ARP -a [inet_addr] [-N if_addr]
> >
> > -a Displays current ARP entries by interrogating the
> > current protocol data. If inet_addr is specified, the
> > IP and Physical addresses for only the specified
> > computer are displayed. If more than one network
> > interface uses ARP, entries for each ARP table are
> > displayed.
> > -g Same as -a.
> > inet_addr Specifies an internet address.
> > -N if_addr Displays the ARP entries for the network interface
> > specified by if_addr.
> > -d Deletes the host specified by inet_addr. inet_addr may
> > be wildcarded with * to delete all hosts.
> > -s Adds the host and associates the Internet address
> > inet_addr with the Physical address eth_addr. The
> > Physical address is given as 6 hexadecimal bytes
> > separated by hyphens. The entry is permanent.
> > eth_addr Specifies a physical address.
> > if_addr If present, this specifies the Internet address of the
> > interface whose address translation table should be
> > modified. If not present, the first applicable
> > interface will be used.
> >
> > Example:
> > > arp -s 157.55.85.212 00-aa-00-62-c6-09 .... Adds a static
> > entry.
> > > arp -a .... Displays the arp
> > table.
> >
> > D:\>arp -a
> >
> > Interface: 192.168.5.10 --- 0x2
> > Internet Address Physical Address Type
> > 192.168.5.1 00-18-f8-f9-6a-92 dynamic
> > 192.168.5.16 00-50-8d-91-70-df dynamic
> >
> > D:\>
--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE don't copy me on replies, I'll read them in the group ***
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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