07-15-2015 11:59 PM
Hi,
The situation is I have an SG500-28 configured as L3 with multiple VLANS and their respective DHCP servers enabled. However, mobile devices particularly mobile phones cannot connect to the network via WiFi. Laptops have no issue connecting via Wifi. More than enough IP addresses have been allocated so there should be no problem there. The running config is shown below. Any help is appreciated. Thanks
core#show running-config
config-file-header
core
v1.3.7.18 / R750_NIK_1_35_647_358
CLI v1.0
set system mode router queues-mode 4
file SSD indicator encrypted
@
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
!
vlan database
default-vlan vlan 900
exit
vlan database
vlan 1,170,180,200,210
exit
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
no eee enable
ip dhcp server
ip dhcp pool network VLAN 200
address low 172.16.20.51 high 172.16.20.254 255.255.255.0
default-router 172.16.20.1
dns-server 172.16.20.2 172.16.17.254
exit
ip dhcp pool network Segment02
address low 172.16.21.21 high 172.16.21.241 255.255.255.0
default-router 172.16.21.1
dns-server 172.16.20.2 172.16.17.254
exit
ip dhcp pool network Management Group
address low 172.16.17.53 high 172.16.17.62 255.255.255.224
lease infinite
default-router 172.16.17.34
dns-server 172.16.17.254
exit
ip dhcp information option
bonjour interface range vlan 1
hostname core
username cisco password encrypted 3750989f9f6b9a4e8389eb9eb51b289aee14e2d8 privilege 15
clock timezone " " 0 minutes 0
ip name-server 172.16.17.254
ip telnet server
!
interface vlan 1
no ip address dhcp
!
interface vlan 170
name Servers
ip address 172.16.17.1 255.255.255.240
!
interface vlan 180
name ComputerLab
ip address 172.16.18.1 255.255.255.128
!
interface vlan 200
name Segment01
ip address 172.16.20.1 255.255.255.0
!
interface vlan 210
name Segment02
ip address 172.16.21.1 255.255.255.0
!
interface vlan 900
ip address 172.16.17.34 255.255.255.224
!
interface gigabitethernet1/1/1
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/2
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/3
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/4
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/5
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/6
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/7
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/8
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/9
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/10
storm-control broadcast enable
switchport mode access
!
interface gigabitethernet1/1/11
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/12
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/13
storm-control broadcast enable
switchport mode access
switchport access vlan 170
!
interface gigabitethernet1/1/14
storm-control broadcast enable
switchport mode access
switchport access vlan 170
!
interface gigabitethernet1/1/15
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/16
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/17
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/18
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/19
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/20
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/21
storm-control broadcast enable
switchport mode access
switchport access vlan 200
!
interface gigabitethernet1/1/22
storm-control broadcast enable
switchport mode access
switchport access vlan 210
!
interface gigabitethernet1/1/23
channel-group 1 mode auto
!
interface gigabitethernet1/1/24
channel-group 1 mode auto
!
interface gigabitethernet1/1/25
storm-control broadcast enable
switchport trunk allowed vlan add 200
!
interface gigabitethernet1/1/26
storm-control broadcast enable
switchport trunk allowed vlan add 200
!
interface Port-channel1
description "To Internet"
ip address 172.16.17.253 255.255.255.252
!
exit
07-16-2015 07:51 AM
To rule out the wifi have you tried giving the devices a static ip , do they work then ?
If they do and its still looking like dhcp do these switches allow you to run debug dhcp detail and then try and connect again see what the logs show
07-19-2015 09:17 PM
Hi Mark,
Thanks for the suggestion. Assigning static IPs on some devices works but not on all.
having gone through the logs, i see similar lines like:
20-Jul-2015 08:01:05 :%DHCP-W-DECLINE: DHCP Decline was received for IP address 172.16.20.81
20-Jul-2015 07:57:37 :%DHCP-W-DECLINE: DHCP Decline was received for IP address 172.16.20.77
20-Jul-2015 07:57:03 :%DHCP-W-DECLINE: DHCP Decline was received for IP address 172.16.20.74
any idea as to whats going on?
07-20-2015 12:24 AM
Hi,
I upgraded to firmware 1.4.1.3 and all seems to be fine now.
Thanks
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