LPAR Networking Issue

[P31]

So I have created an LPAR. I think I have configured everything properly but I can't ping the network. The LPAR is on a VLAN. Other LPARs on the same VLAN works. Here's some info on the LPAR:


# entstat -d ent1
--------------------------------------------------
ETERNET STATISTICS (en1) :
Device Type: Virtual I/O Ethernet Adapter (l-lan)
Hardware Address: 16:72:10:00:90:03
Elapsed Time: 0 days 1 hours 11 minutes 30 seconds




# netstat -rn
Routing tables
Destination Gateway Flags Refs Use If Exp Groups

Route Tree for Protocol Family 2 (Internet):
default 10.1.40.1 UG 1 44 en1 - -
10.1.40.0 10.1.40.41 UHSb 0 0 en1 - - =>
10.1.40/24 10.1.40.41 U 4 932 en1 - -
10.1.40.41 127.0.0.1 UGHS 0 1 lo0 - -
10.1.40.255 10.1.40.41 UHSb 0 0 en1 - -
127/8 127.0.0.1 U 4 70 lo0 - -

Route Tree for Protocol Family 24 (Internet v6):
::1 ::1 UH 0 0 lo0 - -




# ifconfig -a
en1: flags=1e080863,480<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),CHAIN>
inet 10.1.40.41 netmask 0xffffff00 broadcast 10.1.40.255
tcp_sendspace 262144 tcp_recvspace 262144 rfc1323 1
lo0: flags=e08084b<UP,BROADCAST,LOOPBACK,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT>
inet 127.0.0.1 netmask 0xff000000 broadcast 127.255.255.255
inet6 ::1/0
tcp_sendspace 131072 tcp_recvspace 131072 rfc1323 1



# netstat -in
Name Mtu Network Address ZoneID Ipkts Ierrs Opkts Oerrs Coll
en1 1500 link#2 16.72.10.0.90.3 17119 0 848 0 0
en1 1500 10.1.40 10.1.40.41 17119 0 848 0 0
lo0 16896 link#1 70 0 916 0 0
lo0 16896 127 127.0.0.1 70 0 916 0 0
lo0 16896 ::1 0 70 0 916 0 0

I can't figure out why I can't ping anything other than 127.0.0.1...not even the default gateway @ 10.1.40.1. Any idea?


# ping 10.1.40.1
PING 10.1.40.1: (10.1.40.1): 56 data bytes
^C
----10.1.40.1 PING Statistics----
3 packets transmitted, 0 packets received, 100% packet loss




# lsdev -Ccadapter
ent0 Available 01-08 10/100/1000 Base-TX PCI-X Adapter (14106902)
ent1 Available Virtual I/O Ethernet Adapter (l-lan)
ide0 Available 03-08 ATA/IDE Controller Device
usbhc0 Available 02-08 USB Host Controller (33103500)
usbhc1 Available 02-09 USB Host Controller (33103500)
vsa0 Available LPAR Virtual Serial Adapter
vscsi0 Available Virtual SCSI Client Adapter





# lsdev -Ccif
en0 Defined 01-08 Standard Ethernet Network Interface
en1 Available Standard Ethernet Network Interface
et0 Defined 01-08 IEEE 802.3 Ethernet Network Interface
et1 Defined IEEE 802.3 Ethernet Network Interface
lo0 Available Loopback Network Interface







# lsattr -El en1
alias4 IPv4 Alias including Subnet Mask True
alias6 IPv6 Alias including Prefix Length True
arp on Address Resolution Protocol (ARP) True
authority Authorized Users True
broadcast Broadcast Address True
mtu 1500 Maximum IP Packet Size for This Device True
netaddr 10.1.40.41 Internet Address True
netaddr6 IPv6 Internet Address True
netmask 255.255.255.0 Subnet Mask True
prefixlen Prefix Length for IPv6 Internet Address True
remmtu 576 Maximum IP Packet Size for REMOTE Networks True
rfc1323 Enable/Disable TCP RFC 1323 Window Scaling True
security none Security Level True
state up Current Interface Status True
tcp_mssdflt Set TCP Maximum Segment Size True
tcp_nodelay Enable/Disable TCP_NODELAY Option True
tcp_recvspace Set Socket Buffer Space for Receiving True
tcp_sendspace Set Socket Buffer Space for Sending True

 

[AIXLogician]

It might be two things,
1. either you have selected a wrong vlan ID in the HMC for the LPAR profile.
2. the subnet mask might be wrong.
check those two things.

SARFARAZ AHMED SYED,
Sr. Systems Engineer

 

[pa2nc]

Use this command to verify you have configured the correct VLAN ID from the HMC.
# entstat -d ent1 | grep "Port VLAN"
Port VLAN ID: 1234

Verify this is the intended VLAN ID