ArubaOS and Controllers

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New Contributor

vlans cannot ping each other in controllers

Dear Friends,

I am facing a strange problem during implementation of the wireless.

The scenario is as follows :

200 Access Points connected to two controllers 3600 series, each with 128 AP license. As Master-Master cannot be acheived in this mode, Master - Local design was made. The connectivity is made as below

Cntrl 1 ---CS1
|
Cntr 2 --- CS2

First of all , I made VRRP between controller, apart from the IPSEC keys between controllers. With this synchronisation works fine and I tested I could ping between the controllers and the VRRP IP too.

Secondly I created VLAN's for wireless SSID's. Same vlans were created on both controllers with IP address assigned and dhcp helper pointed to the server. I could see that , one of the controller ip cannot ping to the gateway.

Any ideas/suggestions on how I can resolve this issue .

-Siddarth
Guru Elite

Re: vlans cannot ping each other in controllers

type "show arp" to see if the default gateway is in the ARP table.

*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
ArubaOS 8.3 User Guide
InstantOS 8.3 User Guide
Airheads Knowledgebase
New Contributor

Re: vlans cannot ping each other in controllers

Hello Joseph,

Thanks for your help. I did check using show arp command, as I could see the default gateway, which is vlan 28. The issue here is i could ping the gateway (vlan 28 ) from both controllers, but for other vlans I could ping either on end of controller or cannot ping on either ways. Strange thing i notice is that

1. As i traceroute to the non pingable gateway, it is not pointing to the corresponding gateway, lets say for example vlan 24, which should go to 24.1 etc.
2. I could see in the master controller under IP , operational state/protocol is UP , whereas in other controller operational state /protocol is down

Any ideas, do you like to share with me.
Thanks for your help and support.

Regards,
Siddarth
Guru Elite

Re: vlans cannot ping each other in controllers

Please type "show ip route" on the controller that cannot ping. Next, type "show vlan status". Is that VLAN assigned to a port? A vlan usually has an operational state of "down" of it is not assigned to any physical ports.

*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
ArubaOS 8.3 User Guide
InstantOS 8.3 User Guide
Airheads Knowledgebase
Occasional Contributor II

Re: vlans cannot ping each other in controllers

Please remove the master-local ipsec tunnel and try again... I had the nearly the same situation because of an ipsec tunnel problem...
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