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Users not getting the IP addresses after they connect and disconnects.:

Dears,

 

I have a model Aruba controller 3600 that is the problem in the dhcp lease. Although there available IP address, do not connect to network devices.

 

Can You help me?

 

Issue : Users not getting the IP addresses after they connect and disconnects. - customer is connecting the clinet to the below ssid Localiza-Guest, LL_MOBILE - ssid LL_MOBILE has more than 5 vlans mapped to it - client doen't has any issue when connected and mapped with vlans server by Windows dhcp server - issue is with the vlan 700 which is server by the controller for dhcp - same vlan is mapped to the other ssid having same issue - checked the active clinet / found 70 connected - checked the dhcp free lease/ found only 49 - explained that lease time is not expired for the users which is causing issue - checked the lease time - 24 hours is assigned, reduced to 8 hours - aaa user fast age enabled to remove the duplicate ip addresses

Re: Users not getting the IP addresses after they connect and disconnects.:

How is that VLAN and DHCP scope configured?
Can you share the user-role getting assigned "show rights <role name>
Can you please share the config?
Thank you

Victor Fabian
Lead Mobility Engineer @ Integration Partners
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
New Contributor

Re: Users not getting the IP addresses after they connect and disconnects.:

The Controller is the dhcp server on the networkI changed the configuration of the lease the ip, but the error remains.

 

Thanks.

 

 

interface vlan 700
        ip address 172.16.254.254 255.255.255.0
        ip nat inside

vlan 700                172.16.254.254 / 255.255.255.0     up      up


ip dhcp excluded-address 172.16.254.250 172.16.254.254
ip dhcp pool 172.16.254.0/24
 default-router 172.16.254.254
 dns-server 172.16.254.254
 domain-name guest.localiza
 lease 0 1 0 0
 network 172.16.254.0 255.255.255.0
 authoritative

 

 

visitante) #show ip dhcp database

DHCP enabled

# 172.16.254.0/24
subnet 172.16.254.0 netmask 255.255.255.0 {
        default-lease-time 3600;
        max-lease-time 3600;
        option domain-name "guest.localiza";
        option vendor-class-identifier  "ArubaAP";
        option vendor-encapsulated-options  "10.1.1.217";
        option domain-name-servers 172.16.254.254;
        option routers 172.16.254.254;
        range 172.16.254.1 172.16.254.249;
        authoritative;

(visitante) #show ip dhcp statistics

Network Name           172.16.254.0/24
    Free leases        184
    Active leases      65
    Expired leases     0
    Abandoned leases   0

 

Aruba Operating System Software.
ArubaOS (MODEL: Aruba3600), Version 6.1.3.6
Website: http://www.arubanetworks.com
Copyright (c) 2002-2012, Aruba Networks, Inc.
Compiled on 2012-12-11 at 12:51:05 PST (build 36470) by p4build

ROM: System Bootstrap, Version CPBoot 1.3.1.0 (build 35189)
Built: 2012-09-06 16:05:33
Built by: p4build@re_client_35189


Switch uptime is 3 days 20 hours 5 seconds
Reboot Cause: User reboot.
Supervisor Card
Processor XLR 532 (revision C4) with 2016M bytes of memory.
32K bytes of non-volatile configuration memory.
512M bytes of Supervisor Card System flash (model=CF 512MB).

 

New Contributor

Re: Users not getting the IP addresses after they connect and disconnects.:

My problem persist. The devices not obtaning ip address, but if I fixed ip address on device, it conect in the network.

Can you help me!


trade100@localiza.com wrote:

The Controller is the dhcp server on the networkI changed the configuration of the lease the ip, but the error remains.

 

Thanks.

 

 

interface vlan 700
        ip address 172.16.254.254 255.255.255.0
        ip nat inside

vlan 700                172.16.254.254 / 255.255.255.0     up      up


ip dhcp excluded-address 172.16.254.250 172.16.254.254
ip dhcp pool 172.16.254.0/24
 default-router 172.16.254.254
 dns-server 172.16.254.254
 domain-name guest.localiza
 lease 0 1 0 0
 network 172.16.254.0 255.255.255.0
 authoritative

 

 

visitante) #show ip dhcp database

DHCP enabled

# 172.16.254.0/24
subnet 172.16.254.0 netmask 255.255.255.0 {
        default-lease-time 3600;
        max-lease-time 3600;
        option domain-name "guest.localiza";
        option vendor-class-identifier  "ArubaAP";
        option vendor-encapsulated-options  "10.1.1.217";
        option domain-name-servers 172.16.254.254;
        option routers 172.16.254.254;
        range 172.16.254.1 172.16.254.249;
        authoritative;

(visitante) #show ip dhcp statistics

Network Name           172.16.254.0/24
    Free leases        184
    Active leases      65
    Expired leases     0
    Abandoned leases   0

 

Aruba Operating System Software.
ArubaOS (MODEL: Aruba3600), Version 6.1.3.6
Website: http://www.arubanetworks.com
Copyright (c) 2002-2012, Aruba Networks, Inc.
Compiled on 2012-12-11 at 12:51:05 PST (build 36470) by p4build

ROM: System Bootstrap, Version CPBoot 1.3.1.0 (build 35189)
Built: 2012-09-06 16:05:33
Built by: p4build@re_client_35189


Switch uptime is 3 days 20 hours 5 seconds
Reboot Cause: User reboot.
Supervisor Card
Processor XLR 532 (revision C4) with 2016M bytes of memory.
32K bytes of non-volatile configuration memory.
512M bytes of Supervisor Card System flash (model=CF 512MB).

 


 

 

Re: Users not getting the IP addresses after they connect and disconnects.:

The Controller is the dhcp server on the networkI changed the configuration of the lease the ip, but the error remains.

 

Thanks.

 

 

interface vlan 700
        ip address 172.16.254.254 255.255.255.0
        ip nat inside

vlan 700                172.16.254.254 / 255.255.255.0     up      up


ip dhcp excluded-address 172.16.254.250 172.16.254.254
ip dhcp pool 172.16.254.0/24
 default-router 172.16.254.254
 dns-server 172.16.254.254
 domain-name guest.localiza
 lease 0 1 0 0
 network 172.16.254.0 255.255.255.0
 authoritative

 

 

visitante) #show ip dhcp database

DHCP enabled

# 172.16.254.0/24
subnet 172.16.254.0 netmask 255.255.255.0 {
        default-lease-time 3600;
        max-lease-time 3600;
        option domain-name "guest.localiza";
        option vendor-class-identifier  "ArubaAP";
        option vendor-encapsulated-options  "10.1.1.217";
        option domain-name-servers 172.16.254.254;
        option routers 172.16.254.254;
        range 172.16.254.1 172.16.254.249;
        authoritative;

(visitante) #show ip dhcp statistics

Network Name           172.16.254.0/24
    Free leases        184
    Active leases      65
    Expired leases     0
    Abandoned leases   0

 

Aruba Operating System Software.
ArubaOS (MODEL: Aruba3600), Version 6.1.3.6
Website: http://www.arubanetworks.com
Copyright (c) 2002-2012, Aruba Networks, Inc.
Compiled on 2012-12-11 at 12:51:05 PST (build 36470) by p4build

ROM: System Bootstrap, Version CPBoot 1.3.1.0 (build 35189)
Built: 2012-09-06 16:05:33
Built by: p4build@re_client_35189


Switch uptime is 3 days 20 hours 5 seconds
Reboot Cause: User reboot.
Supervisor Card
Processor XLR 532 (revision C4) with 2016M bytes of memory.
32K bytes of non-volatile configuration memory.
512M bytes of Supervisor Card System flash (model=CF 512MB).

 

Re: Users not getting the IP addresses after they connect and disconnects.:

As Victor asked, can you please share 'show rights <role name>' of ther role the users have.

 

You should have 'any any sv-dhcp permit' at the top of your acl. When the clients reconnect, they could be doing a dhcp renew, which being unicast may be blocked.


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

ACCP, ACMP, ACMX #294
mclarke@arubanetworks.com
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