Web interface of iDrac tend to confuse me so this time I decided to note where to find to option to run diagnostic commands in iDrac.

I have these options in the dropdown menu in the top part of the window:

Dashboard >> System >> Storage >> Configuration >> Maintenance >> iDrac Settings

The option to enter the Diagnostics Console Command is under the Maintenance and diagnostics.

iDrac9 - Diagnostic commands

The options are:

arp

usage: arp

Displays the contents of the ARP table. In my case, it looks like this:

fe80::abcd:xxxx:xxxx:abcd dev bond0 lladdr 12:xx:xx:xx:34
fe80::abcd:xxxx:xxxx:abcd dev bond0 lladdr 12:xx:xx:xx:34 router REACHABLE

or:

fe80::abcd:xxxx:xxxx:abcd dev bond0 lladdr 12:xx:xx:xx:34 router DELAY

Whather it’s in status REACHABLE or DELAY doesn’t matter much. More info about arp is here.

ifconfig

Displays info about network interface:

usage: ifconfig


bond0     Link encap:Ethernet  HWaddr F4:EE:08:XX:XX:XX  
          inet6 addr: 2001:718:1:fff0:XXXX:XXXX:XXXX:XXXX/64 Scope:Global
          inet6 addr: fe80::f52c:2f7d:XXXX:XXXX/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1749 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2801 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3259327 (3.1 MiB)  TX bytes:1492890 (1.4 MiB)

netstat

usage: netstat

Displays routing table:

Kernel IPv6 routing table
Destination                                 Next Hop                                Flags Metric Ref    Use Iface
::1/128                                     ::                                      Un    0      5        0 lo      
::1/128                                     ::                                      U     256    1        0 lo      
2001:xxx:1:xxxx::/64                        ::                                      UA    256    2        0 bondX  
fe80::xxxx:xxxx:xxxx:xxxx/128               ::                                      Un    0      3        0 bondX  
fe80::/64                                   ::                                      U     256    1        0 bondX  
ff00::/8                                    ::                                      U     256    4        0 bondX  
::/0                                        fe80::xxxx:xxxx:xxxx:xxxx                UGDA  1024   2        0 bondX   

Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       
tcp        0      0 127.0.0.1:xxxxx         127.0.0.1:4xxx          TIME_WAIT  
tcp        0      0 127.0.0.1:xxxxx         127.0.0.1:4xxx          TIME_WAIT  
tcp        0      0 127.0.0.1:xxxxx         127.0.0.1:4xxx          ESTABLISHED
tcp        0      0 127.0.0.1:xxxxx         127.0.0.1:4xxx          TIME_WAIT  
tcp        0      0 2001:xxx:1:xxxx::xxxx:xxxx  2001:xxx:1:x::xx:xxxx  ESTABLISHED
tcp        0      0 ::ffff:127.0.0.1:443    ::ffff:127.0.0.1:xxxxx  ESTABLISHED

Where this line is interesting:

::/0                                        fe80::xxxx:xxxx:xxxx:xxxx                UGDA  1024   2        0 bondX

The IPv6 address after ::/0 is the default gateway.
The UGDA flags mean:
U - the route is up
G - the route is to Gateway
D - it’s Dynamicaly created (by a routing daemon or DHCP)
A - it’s installed by an ICMP redirect (by the router)

ping and ping6

usage:

ping6 2001:4860:4860::8888
ping 1.1.1.1

This is to verify connectivity to destination addresses.

gettracelog

Shows log with info about network communication. It wasn’t as helpful as I hoped when I had issues with DNS.