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Dhcp snooping problem empty dhcp snooping database

 
networker_88
Occasional Visitor

Dhcp snooping problem empty dhcp snooping database

 

Hi all,

 

Our company network has 2610  Series switches which version  R.11.30 . When we tried to deploy dhcp-snooping, although everything seems fine, dhcp - snooping binding table has no data.Clients keep going to receive IP.

 

DHCP server is attached another switch and i set this uplink to trust. What cause empty dhcp binding table situation? Do I need to try version update?

 

Thanks. 

 

sh dhcp-snooping binding


MacAddress IP VLAN Interface Time Left
------------- --------------- ---- --------- ---------

 

here is conf,

 

 

dhcp-snooping
no dhcp-snooping option 82
dhcp-snooping vlan 10 20
interface 49
dhcp-snooping trust
exit

 

 

sh dhcp-snooping stats


Packet type Action Reason Count
----------- ------- ---------------------------- ---------
server forward from trusted port 0
client forward to trusted port 2108
server drop received on untrusted port 0
server drop unauthorized server 0
client drop destination on untrusted port 0
client drop untrusted option 82 field 0
client drop bad DHCP release request 0
client drop failed verify MAC check 0

 

sh dhcp-snooping

DHCP Snooping Information

DHCP Snooping : Yes
Enabled Vlans : 10 20
Verify MAC : Yes
Option 82 untrusted policy : drop
Option 82 Insertion : No

Store lease database : Not configured

Port Trust
----- -----
1 No
2 No
3 No
4 No
5 No
6 No
7 No
8 No
9 No
10 No
11 No
12 No
13 No
14 No
15 No
16 No
17 No
18 No
19 No
20 No
21 No
22 No
23 No
24 No
25 No
26 No
27 No
28 No
29 No
30 No
31 No
32 No
33 No
34 No
35 No
36 No
37 No
38 No
39 No
40 No
41 No
42 No
43 No
44 No
45 No
46 No
47 No
48 No
49 Yes
50 No
51 No
52 No