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WLC 2504 and cisco 3750 - unable to ping anything beyond cisco poe switch

echoes0071
Level 1
Level 1

Hi everyone, Can anyone help me please.

I have a following setup.

Cisco WLC 2504

SSID-  Guest

Interface name – guest        Interface ip address – 10.10.10.2/24

Interface name -  management    Interface ip address 10.1.1.2/24

WLC2504’s  port 1 is connected to port 24 of cisco 3750.

 

On Cisco 3750 I have a following config.

Int vlan 2 -  ip address 10.1.1.1 /24

Ports 1 to 20 on cisco switch are set to access vlan 2.  

Int vlan 10 – ip address 10.10.10.1/24

Int g22 -  no switchport -  ip address 192.168.0.2/24

Int g24 is set as trunk link to port 1 of WLC and it carries vlans 2 and 10.

Ip route 0.0.0.0   0.0.0.0   192.168.0.1 

 

For internet connection clients have purchased  virgin media broadband and I have been supplied with a virgin media superhub (unfortunately due to firmware issue I am not able to convert this superhub to modem only mode. I will check with tech support what my options are).   But as  it stands this superhub has lan IP of 192.168.0.1  . Basically this superhub has 4 port switch built in. so I have connected one of the port to int g22 of cisco 3750.

 

If I connect a laptop to one of this ports on superhub I can get onto internet without any problem.  If I connect a Cisco switch to the lan port I can ping google, bbc.co.uk  etc if provide the dns server settings on the switch. So Cisco switch is able to connect to outside world via this superhub.

 

As I have a dhcp scope configured on cisco switch for vlan 2 and vlan 10 ranges, if  I connect my laptop into one of the ports on cisco switch, I am getting IP address in 10.1.1.0 range from DHCP server.    

 

Now my problem is… From my laptop I can ping 192.168.0.2 (int g22 ip address) on cisco switch. I can also ping other SVI ip addresses but I simply can not ping  192.168.0.1 (ip address of lan interface of superhub). 

 

I just can’t work out why I can’t reach beyond Cisco Switch.   

 

My access points do receive IP address from 10.1.1.0 range when connected to  ports 1 to 20 on Cisco switch.  My wireless devices are able to connect to ssid guest without any problem and wireless clients receive ip address from data vlan 10 ( 10.10.10.0 range) .. But these client can’t ping wireless controller IP addresses 10.10.10.2  or 10.1.1.2  .  At times I have been able to ping 10.1.1.2 but more often then not it doesn’t work.. however before I try and diagnose this wireless issue I am stuck with Lan connection problem described above.

 

I hope all that makes sense and someone is able to suggest some sort of solution.

Thanks. Regards. 

15 Replies 15

Abhishek Abhishek
Cisco Employee
Cisco Employee

As said please add a static route between the two subnet with the default gateway address as 192.168.0.2

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