Does CISCO C3560X VLAN support multiple Network segments which are further configured with HSRP function

Question

Hi Cisco experts,
    My name is Kumagai and I need your expert opinions below.
I am trying to configure one VLAN1 support multiple network segments as below.
(this should be a very straight forward configuration and should be OK, I think ? )
 interface Vlan1
 ip address 172.30.0.0 255.255.128.0
 ip address 172.30.31.253 255.255.254.0 secondary
 ip address 172.30.61.253 255.255.254.0 secondary
 ip address 172.30.71.253 255.255.254.0 secondary
 ip address 172.30.4.253 255.255.255.0 secondary
 The only issue that is eating me is the above network segments are using HSRP too
 and I am not sure is this possible with a combination of VLAN1 supporting multiples which are
 further supported with HSRP settings in Cisco environment.
!example of HSRP:
interface Vlan4
 ip address 172.30.4.253 255.255.255.0
 no ip redirects
 standby 4 ip 172.30.4.254
 standby 4 priority 105
 standby 4 preempt
<<< what will happen if I add the HSRP configuration as below into the above VLAN1 with multiple Network segment ??)
 I would like to summarize my "Combined" configurations as below but I need your expert opinions on
 whether the configuration below is workable without any problem ??
 Or it is a total flop because Cisco does not support the configuration below !!!
 interface Vlan1
 ip address 172.30.0.0 255.255.128.0
 ip address 172.30.31.253 255.255.254.0 secondary
 ip address 172.30.61.253 255.255.254.0 secondary
 ip address 172.30.71.253 255.255.254.0 secondary
 ip address 172.30.4.253 255.255.255.0  secondary
 standby 30 ip 172.30.31.254
 standby 30 priority 105
 standby 30 preempt
 standby 60 ip 172.30.61.254
 standby 60 priority 105
 standby 60 preempt
 standby 70 ip 172.30.71.254
 standby 70 priority 105
 standby 70 preempt
 standby  4 ip 172.30.4.254
 standby  4 priority 105
 standby  4 preempt
Thanking you in advance !!!!!

Answer 1

Hi,
As far as i know we dont set the ip helper address on the radio interface. It should be on the L3 interface of corresposding VLANs i.e.
int vlan 20
ip helper-address 192.168.33.xxx
int vlan 60
ip helper-address 130.20.1.xxx
I'm assuming that your using SVI's (int Vlan 20 and int Vlan 60) rahter than physical interfaces. Also hope you have configured switch port as trunk where this AP is connected.
Modify the AP config as below since you are using data vlan as the native vlan
interface Dot11Radio0.20
encapsulation dot1Q 20 native
interface FastEthernet0.20
encapsulation dot1Q 20 native
Ideally your AP fastethernet configuration should looks like below and not sure how you missed this as this comes by default when you have multiple vlans for multiple ssids.
interface FastEthernet0.20
encapsulation dot1Q 20 native
no ip route-cache
bridge-group 20
no bridge-group 20 source-learning
bridge-group 20 spanning-disabled
interface FastEthernet0.60
encapsulation dot1Q 60
no ip route-cache
bridge-group 60
no bridge-group 60 source-learning
bridge-group 60 spanning-disabled
Hope this helps.
Regards
Najaf