I tried the netstat from tcpmaint and got
DTCNET338E * MAC address is not in the ARP table.
Also tried the qetharp and got
Unsuccessful: Operation not permitted
Suspect that it doesn't work on a L2 vswitch...
But we've tracked them all dow
Re: Multicast use on a Linux server
01/18/2011 08:52
PM
Please respond to
Linux on 390 Port
Thanks Scott, Philip, and Alan,
That gives me enough info.
Curious though how to map the mac addr to the IP from Linux itself? They
Marcy - try doing 2 netstat arp all tcp
commands from TCPMAINT at least 1 second apart. It will report on the
MAC arp table in use.
David
Original Message
Subject: Re: Multicast use on a Linux server
From: Marcy Cortes
Date: Tue, January 18, 2011 8:52 pm
To: LINUX-390
Philip Rowlands wrote:
On 19/01/2011 01:52, Marcy Cortes wrote:
Thanks Scott, Philip, and Alan,
That gives me enough info. Curious though how to map the mac addr to
the IP from Linux itself? They don't show up in arp -n . Would one
check at the router?
There's a defined many -> one mapp
On 19/01/2011 01:52, Marcy Cortes wrote:
Thanks Scott, Philip, and Alan,
That gives me enough info. Curious though how to map the mac addr to
the IP from Linux itself? They don't show up in arp -n . Would one
check at the router?
There's a defined many -> one mapping from IP multicast addre
Thanks Scott, Philip, and Alan,
That gives me enough info.
Curious though how to map the mac addr to the IP from Linux itself? They don't
show up in arp -n . Would one check at the router?
cdztv17142:~ # netstat -gn(-n being more needed
to avoid the dummy dns
On 18/01/2011 21:49, Marcy Cortes wrote:
Hello,
General Linux question here...
Is there a way to tell all the multicast addresses are particular server might
be using?
# netstat --groups
or
# ip maddress show
will show which addresses a host is using.
Cheers,
Phil
-
Just poking around /proc/net I see /proc/net/dev_mcast .. it seems to
correspond to the multicast addresses I see in Q VSWITCH DETAILS..
Scott Rohling
On Tue, Jan 18, 2011 at 2:49 PM, Marcy Cortes wrote:
> Hello,
>
> General Linux question here...
>
> Is there a way to tell all the multicast
On Tuesday, 01/18/2011 at 04:52 EST, Marcy Cortes
wrote:
> Is there a way to tell all the multicast addresses are particular server
might
> be using?
If the server is using a virtual NIC on z/VM, you can query the NIC (or
QUERY VSWITCH DETAILS) and and see the registered MAC (layer 2) and IP
add
Hello,
General Linux question here...
Is there a way to tell all the multicast addresses are particular server might
be using?
Marcy
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