02-19-2014 04:46 AM - edited 03-07-2019 06:17 PM
My Cisco Switch has below configuration:
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
no spanning-tree vlan 1
!
vlan internal allocation policy ascending
!
interface FastEthernet0
no ip address
--More-- shutdown
!
interface GigabitEthernet1/0/1
switchport access vlan 101
no cdp enable
!
interface GigabitEthernet1/0/7
switchport access vlan 102
no cdp enable
!
interface GigabitEthernet1/0/13
switchport access vlan 103
no cdp enable
!
interface GigabitEthernet1/0/19
switchport access vlan 104
no cdp enable
!
interface GigabitEthernet1/0/24
switchport mode trunk
no cdp enable
!
interface Vlan1
ip address 10.42.239.34 255.255.255.192
no ip proxy-arp
no ip route-cache
!
ip default-gateway 10.42.239.33
no ip http server
no ip http secure-server
!
access-list 10 permit 10.42.24.29
no cdp run
snmp-server community cisco RO 10
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps vlan-membership
snmp-server host 10.42.24.29 cisco snmp
10.42.239.33 is Firewall interface
10.42.24.29 is a workstation connected to Firewall
Each VLAN is connected to a Load balancer which default gateway is set to Firewall interface (10.42.239.33)
The question is :
1. The workstation cannot get SNMP data from the switch. WHY?
2. VLAN 102 has an NTP Server But I cannot get NTP Update from Switch. WHY?
Confirmed that Firewall policy is permitted traffic
ANYONE knows what happened?
Thanks.
02-19-2014 07:57 AM
I do not see anything in the config that you posted about NTP so it makes it difficult to know why it is not working.
What I see in the config does not explain why the workstation can not get SNMP data. So I wonder if it is something outside of the switch. You tell us that the firewall policy should permit it but I wonder if there is some aspect of the firewall that is causing the problem. Perhaps there is a problem with the trunk connection between the switch and the firewall? Perhaps some vlan is not correctly carried over that trunk? Perhaps there is not a correct route on the firewall?
HTH
Rick
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