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Regular Contributor I

Controller 620 is not providing the DHCP service !!!

I am using controller 620. Controller is on by default VLAN 1 with IP 172.16.0.254. I have make the DHCP server of this network and DHCP service is check in but still i am not able to get the IP address from the Controller

 

My PC is attached to the controller port  0 then 1 then 2 and so on ....but still i am not getting IP via DHCP.

 

Kindly help me in this regard.

Re: Controller 620 is not providing the DHCP service !!!

In addition to the scope, did you do this command?

 

service dhcp

 


If my post is helpful please give kudos, or mark as solved if it answers your post.

ACCP, ACCX #817, ACMP, ACMX #294
Regular Contributor I

Re: Controller 620 is not providing the DHCP service !!!

 

 

I have applied the service DHCP command. Now its getting DHCP. but after sometime controller stop providing DHCP service

Aruba

Re: Controller 620 is not providing the DHCP service !!!

Do you mean it won't give out additional IPs after some time?  

 

Please share each of the following:

 

show vlan

show ip interface brief

show ip dhcp database

------------------------------------------------
Systems Engineer, Northeast USA
ACCX | ACDX | ACMX

Regular Contributor I

Re: Controller 620 is not providing the DHCP service !!!

Aruba620) #show vlan

VLAN CONFIGURATION
------------------
VLAN Description Ports AAA Profile
---- ----------- ----- -----------
1 Default FE1/0-7 GE1/8 Pc0-7 N/A

 

 

(Aruba620) #show ip interface brief

Interface IP Address / IP Netmask Admin Protocol
vlan 1 172.16.0.254 / 255.255.255.0 up up
loopback unassigned / unassigned up up
mgmt unassigned / unassigned down down

 

 

(Aruba620) #show ip dhcp database

DHCP enabled

# default-pool
subnet 172.16.0.0 netmask 255.255.255.0 {
default-lease-time 616;
max-lease-time 616;
option domain-name-servers 8.8.8.8;
option routers 172.16.0.254;
range 172.16.0.1 172.16.0.253;
authoritative;
}'

 

 

(Aruba620) #show ip dhcp binding

 

lease 172.16.0.1 {
starts epoch 1401365478; # Thu May 29 17:11:18 2014
ends epoch 1401366094; # Thu May 29 17:21:34 2014
cltt epoch 1401365478; # Thu May 29 17:11:18 2014
binding state active;
next binding state free;
hardware ethernet a4:5d:36:c9:3f:e7;
}

 

 

However my system get the IP from DHCP and after sometime IP parameters are disappeared, but on controller it is showing DHCP binding. Same issue on different laptops, Desktops.

 1.jpg

 

 

 

Aruba

Re: Controller 620 is not providing the DHCP service !!!

It looks like you have your lease set for about 10 minutes, is that right?     Do you have the port trusted or is your device getting a role when attached.  Also, what version of code are you running?   Please share the following too.

 

show ip dhcp statistics

show port status

show user (when device is attached)

 

If the device shows in the user table, run the following:

 

show rights <role the user in above>

------------------------------------------------
Systems Engineer, Northeast USA
ACCX | ACDX | ACMX

Regular Contributor I

Re: Controller 620 is not providing the DHCP service !!!

You are right !!! The DHCP lease was set to 10mins and 60secs. Now i set the DHCP service Lease time for VLAN 1 & 2 is 0days 0hours, 0mins and 0secs. But Show user and show user table didnot show any entity in the table.

 

(Aruba620) #show ip dhcp statistics

DHCPv4 enabled; DHCPv6 disabled

DHCP Pools

----------

Network Name  Type  Active  Configured leases  Active leases  Free leases  Expir

ed leases  Abandoned leases

------------  ----  ------  -----------------  -------------  -----------  --------------  ---------------------------------

default-pool  v4    Yes     253                1              252          0

           0

Test          v4    Yes     0                  -              -            -    -

 

Current leases          253

Total leases            256

NOTE: To make a DHCPv6 pool active, ensure that the pool name is added in vlan interface

 --------------------------------------------------------------------------------------------------------------------------

(Aruba620) #show ip interface brief

Interface                   IP Address / IP Netmask        Admin   Protocol

vlan 1                    172.16.0.254 / 255.255.255.0     up      up

vlan 2                     192.168.2.1 / 255.255.255.0     up      down

loopback                    unassigned / unassigned        up      up

mgmt                        unassigned / unassigned        down    down

 --------------------------------------------------------------------------------------------------------------------------

(Aruba620) #show port status

 

1/0        FE        Enabled     Down       Enabled  Yes      Disabled      Access

1/1        FE        Enabled     Down       Enabled  Yes      Disabled      Access

1/2        FE        Enabled     Down       Enabled  Yes      Disabled      Access

1/3        FE        Enabled     Down       Enabled  Yes      Disabled      Access

1/4        FE        Enabled     Down       N/A      Yes      Disabled      Access

1/5        FE        Enabled     Down       N/A      Yes      Disabled      Access

1/6        FE        Enabled     Up         N/A      Yes      Forwarding    Access

1/7        FE        Enabled     Down       N/A      Yes      Disabled      Access

1/8        GE        Enabled     Down       N/A      Yes      Disabled      Access

 ------------------------------------------------------------------------------------------------------------------------

(Aruba620) #show ip dhcp binding

lease 172.16.0.1 {

  starts epoch 1401422322; # Fri May 30 08:58:42 2014

  ends epoch 1401422938; # Fri May 30 09:08:58 2014

  cltt epoch 1401422322; # Fri May 30 08:58:42 2014

  binding state active;

  next binding state free;

  hardware ethernet a4:5d:36:c9:3f:e7;

}

------------------------------------------------------------------------------------------------------------------------------

(Aruba620) #show ip dhcp statistics

DHCPv4 enabled; DHCPv6 disabled

 

DHCP Pools

----------

Network Name  Type  Active  Configured leases  Active leases  Free leases  Expir

ed leases  Abandoned leases

------------  ----  ------  -----------------  -------------  -----------  --------------  ---------------------------------------

default-pool  v4    Yes     253                1              252          0

           0

Test          v4    Yes     0                  -              -            -

      

Current leases          253

Total leases            256

NOTE: To make a DHCPv6 pool active, ensure that the pool name is added in vlan interface

-------------------------------------------------------------------------------------------------------------------------------

(Aruba620) #show ip dhcp database

DHCP enabled

# default-pool

subnet 172.16.0.0 netmask 255.255.255.0 {

        default-lease-time 616;

        max-lease-time 616;

        option domain-name-servers 8.8.8.8;

        option routers 172.16.0.254;

        range 172.16.0.1 172.16.0.253;

        authoritative;

}

--------------------------------------------------------------------------------------------------------------------------

 

(Aruba620) #show user

Users
-----
IP MAC Name Role Age(d:h:m) Auth VPN link AP name Roa
ming Essid/Bssid/Phy Profile Forward mode Type Host Name
---------- ------------ ------ ---- ---------- ---- -------- ------- ---
---- --------------- ------- ------------ ---- ---------

User Entries: 0/0
Curr/**bleep** Alloc:0/0 Free:0/0 Dyn:0 AllocErr:0 FreeErr:0

--------------------------------------------------------------------------------------------------------------------

 

But my system now properly getting ip address from DHCP service.

 

 

 

Regular Contributor I

Re: Controller 620 is not providing the DHCP service !!!

Still having a Problem on DHCP service...

 

I have select the DHCP service lease time 0days, 0hours, 0mins and 0secs apply done and save configuration. 

 

 

After 10 mins i have checked that lease time again set to 10mins and 60secs.

 

Agains dhcp service problem

 

(Aruba620) #show ip dhcp  binding

lease 172.16.0.1 {
starts epoch 1401427674; # Fri May 30 10:27:54 2014
ends epoch 1401428290; # Fri May 30 10:38:10 2014
cltt epoch 1401427674; # Fri May 30 10:27:54 2014
binding state active;
next binding state free;
hardware ethernet a4:5d:36:c9:3f:e7;

Aruba

Re: Controller 620 is not providing the DHCP service !!!

you cannot set the lease time to 0 days, 0 hours, 0 minutes (15 seconds is the minimum I believe).   Please set it to something like 4 hours to test.   Regardless, even if it is 10 minutes, the client should renew its IP without issue.  

------------------------------------------------
Systems Engineer, Northeast USA
ACCX | ACDX | ACMX

Regular Contributor I

Re: Controller 620 is not providing the DHCP service !!!

I have again set the lease time to 0days 23hours 60mins and 60sec  but after sometime when i check it revert back to 10mins and 60secs.. although i have aply and configuration and then save configuration. 

 

However i am not the new user on aruba controller platoform. I knew about it but facing such type of problem first time.

 

 

 

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