It's been 8 years since we set our up I believe. Don't remember the
details, but maybe something in here triggers something. It seems like
we have the same setup as you.

Internet address . . . . . . . : 172.23.254.2

Subnet mask . . . . . . . . . : 255.255.255.0

Network address . . . . . . . : 172.23.254.0

Host address . . . . . . . . : 0.0.0.2

Directed broadcast address . : 172.23.254.255

Interface status . . . . . . . : Active

Change date/time . . . . . . . : 08/09/15 04:10:28

Line description . . . . . . . : VETHLINE

Line type . . . . . . . . . . . : *ELAN

Associated local interface . . : *NONE

Type of service . . . . . . . . : *NORMAL

Maximum transmission unit . . . : 8992

Automatic start . . . . . . . . : *YES

DHCP created . . . . . . . . . : *NO

Alias name . . . . . . . . . . : *NONE

Text description . . . . . . . : VIRTUAL ETHERNET LINE BETWEEN
PARTITIONS

In the HMC - we have this same config on both partitions.
Virtual ethernet adapter
Adapter ID:
19
Virtual switch:
ETHERNET0
Port Virtual Ethernet (VLAN ID):
19
Required:
False
IEEE 802.1q compatible:
False
Additional VLAN IDs:
Access external network:
False

This article looks to be the one we followed way back when.
http://www-01.ibm.com/support/knowledgecenter/ssw_i5_54/rzahq/rzahqinter
lpar.htm?cp=ssw_i5_54%2F1-7-4-4-2




Kevin Bucknum
Senior Programmer Analyst
MEDDATA/MEDTRON
Tel: 985-893-2550

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Buck Calabro
Sent: Tuesday, August 11, 2015 2:47 PM
To: midrange-l@xxxxxxxxxxxx
Subject: Re: Virtual Ethernet between IBM i LPARs

On 8/11/2015 1:45 PM, DrFranken wrote:
So you are mixing the 'just connect two LPARs' bits with the 'Access
external networks' bits here. Your adapter on the HOST partition has
'Access external network' flag set on so it's in promiscuous mode. For

ONLY connecting two LPARs together on a virtual network we want that
to be 'False'.

Makes sense.

endtcpifc '10.1.10.1'
HMC, dynamically delete slot 2, OK
wrkhdwrsc *cmn; cmn13 not detected
HMC, dynamically created

Adapter ID: 2
Virtual switch: ETHERNET0
Port Virtual Ethernet (VLAN ID): 1
Required: False
IEEE 802.1q compatible: False
Additional VLAN IDs:
Access external network: False

wrkhdwrsc *cmn; cmn13 Operational
U8286.41A.21EF0DV-V1-C2-T1 - seems right strtcpifc '10.1.10.1'
ping '10.1.10.2' - no response from host.

Same issue if end/start interface on guest and ping back to host.

Also for communication between these two LPARS there need no routes
whatever as they are in the same IP network (10.1.10.0) so just for
clarity I would remove those.

Ended interfaces on both sides, removed routes, started interfaces on
both sides, ping gets no response.

--
--buck

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