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Occasional Contributor I
Posts: 5
Registered: ‎10-01-2013

Option 82 Sub Option 1 Field is Blank?

Dear All,

We have a 7240 controller and upon activationg the option 82 feature we are only getting sub option 2 (eSSID) with wireshark. And the sub option 1 field (MAC of the AP) is filled with all zeros. Anyone came acros with this?

 

Thank you.

Valued Contributor II
Posts: 804
Registered: ‎12-01-2014

Re: Option 82 Sub Option 1 Field is Blank?

Hi,

 

Which AOS version you are using ?

 

Cheers,

Venu Puduchery

Cheers,
Venu Puduchery,
[Is my post helped you ? Give Kudos :) ]
Occasional Contributor I
Posts: 5
Registered: ‎10-01-2013

Re: Option 82 Sub Option 1 Field is Blank?

We have 6.4.2.2.

Occasional Contributor I
Posts: 5
Registered: ‎10-01-2013

Re: Option 82 Sub Option 1 Field is Blank?

Any ideas?

Moderator
Posts: 321
Registered: ‎08-28-2009

Re: Option 82 Sub Option 1 Field is Blank?

omergencay

 

Are you doing something like split tunnel or bridge? 

 

turn on some debug and see what it says. For a sample config such as

 

interface vlan 1
  ip helper-address 192.168.1.245
  option-82 mac essid

!

 

below is some sample debug that shows the BSSID being added, you can enable the same debugs and see if you can see your BSSID being added.

 

logging level debugging user
logging level info system

logging level debugging network process dhcpd subcat dhcp
logging level debugging network process dhcpd subcat packet-dump

logging level debugging system process dhcpd
logging level debugging network process dhcpd

 

Oct 9 18:01:24 :399814:  <DBUG> |dhcpdwrap|  DHCPD: Added client MAC 00:21:6B:0B:2A:A0 BSSID = 00:24:6C:22:47:89 
Oct 9 18:01:27 :202541:  <DBUG> |dhcpdwrap| |dhcp| Received DHCP packet from Datpath, sos msg hdr flags 0x40 opcode 0x5a ingress 0x10cb vlan 20 egress 0x14 src mac 00:21:6b:0b:2a:a0
Oct 9 18:01:27 :202534:  <DBUG> |dhcpdwrap| |dhcp| Datapath vlan20: DISCOVER 00:21:6b:0b:2a:a0 Options 74:01 3d:0100216b0b2aa0 0c:7063 3c:4d53465420352e30 37:010f03062c2e2f1f2179f92b
Oct 9 18:01:27 :202523:  <DBUG> |dhcpdwrap| |dhcp| dhcprelay: dev=eth1, length=300, from_port=68, op=1, giaddr=0.0.0.0
Oct 9 18:01:27 :399814:  <DBUG> |dhcpdwrap|  DHCPD: Adding option 82 for client MAC 00:21:6B:0B:2A:A0 with BSSID = 00:24:6C:22:47:89 
Oct 9 18:01:27 :202532:  <DBUG> |dhcpdwrap| |dhcp| got 1 relay servers
Oct 9 18:01:27 :202533:  <DBUG> |dhcpdwrap| |dhcp| Relayed: DISCOVER server=192.168.1.245 giaddr=172.16.1.156 MAC=00:21:6b:0b:2a:a0
Oct 9 18:01:27 :202523:  <DBUG> |dhcpdwrap| |dhcp| dhcprelay: dev=eth1, length=309, from_port=67, op=1, giaddr=172.16.1.156
Oct 9 18:01:27 :202541:  <DBUG> |dhcpdwrap| |dhcp| Received DHCP packet from Datpath, sos msg hdr flags 0x42 opcode 0x5a ingress 0x0 vlan 1 egress 0x1028 src mac 00:0b:86:62:0b:60

 

regards

-jeff

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