Jump to content
EduGeek EdSec 2026 is Go! 27th Oct in Derby! Join us for a day of EdTech security focused talks, networking, and an evening social ×

Recommended Posts

Posted

I think that this will be a simple one.

 

I am attempting to set up an Aruba/HPE 5412R ZL2 Chassis switch. I have set up several VLANs on the switch and have got routing working between them. All of the VLANs have IP addresses assigned to them.

 

However, the addresses that I assign the VLANs can't be reached unless the VLAN has some tagged/untagged ports and something has been plugged into one of these ports. This suggests to me that the switch is selectively disabling the IP addresses until something is connected. For at least one of the VLANs, I'd prefer that the switch didn't do this because this IP address will be the one I designate as the management IP.

 

Other 5400 switches that I have on the network (which weren't configured by me) have VLAN addresses which aren't assigned to anything but can still be pinged so I think there must be an enable command somewhere, I just can't find it. Can anyone make any suggestions?

 

Switch config is as follows (still incomplete):

 

	Running configuration:

	; J9851A Configuration Editor; Created on release #KB.16.04.0009
	; Ver #11:10.9b.7f.bf.bb.ff.7c.59.fc.7b.ff.ff.fc.ff.ff.3f.ef:90
	hostname "HTGFS-CoreSw-HubRm-001"
	module A type j9986a
	module B type j9986a
	module C type j9986a
	module D type j9986a
	module E type j9986a
	module F type j9986a
	module K type j9990a
	module L type j9990a
	console idle-timeout 2400
	console idle-timeout serial-usb 2400
	trunk K23-K24,L23-L24 trk1 lacp
	mvrp enable
	telnet-server listen data
	web-management listen data
	ip access-list extended "WirelessNetworks"
		 10 deny ip 172.24.0.0 0.0.255.255 10.0.0.0 0.255.255.255
		 20 deny ip 172.21.0.0 0.0.255.255 10.0.0.0 0.255.255.255
		 30 deny ip 172.22.0.0 0.0.255.255 10.0.0.0 0.255.255.255
		 40 deny ip 172.23.0.0 0.0.255.255 10.0.0.0 0.255.255.255
		 50 deny ip 172.25.0.0 0.0.255.255 10.0.0.0 0.255.255.255
		 60 deny ip 172.26.0.0 0.0.255.255 10.0.0.0 0.255.255.255
		 70 deny ip 172.27.0.0 0.0.255.255 10.0.0.0 0.255.255.255
		 80 deny ip 172.28.0.0 0.0.255.255 10.0.0.0 0.255.255.255
		 90 deny ip 172.29.0.0 0.0.255.255 10.0.0.0 0.255.255.255
		 100 deny ip 172.30.0.0 0.0.255.255 10.0.0.0 0.255.255.255
		 110 permit ip 0.0.0.0 255.255.255.255 0.0.0.0 255.255.255.255
	   exit
	ip ssh listen data
	ip route 0.0.0.0 0.0.0.0 192.168.1.150
	ip route 172.16.0.0 255.255.0.0 192.168.1.1
	ip route 192.168.1.0 255.255.255.0 192.168.1.1
	ip router-id 10.0.0.2
	ip routing
	ip multicast-routing
	snmp-server community "public" unrestricted
	snmp-server listen data
	oobm
	   disable
	   no ip address
	   exit
	router ospf
	   area backbone
	   redistribute connected
	   enable
	   exit
	router pim
	   enable
	   exit
	vlan 1
	   name "DEFAULT_VLAN"
	   no untagged
	 A1-A24,B1-B24,C1-C24,D1-D24,E1-E24,F1-F24,K1-K14,K17-K20,L1-L14,L17-L19
	   untagged K15-K16,K21-K22,L15-L16,L20-L22,Trk1
	   no ip address
	   exit
	vlan 56
	   name "***CCTV***"
	   untagged K17-K20,L17-L19
	   tagged L20,Trk1
	   no ip address
	   ip igmp
	   exit
	vlan 100
	   name "WAN"
	   tagged L20,Trk1
	   ip address 10.0.0.2 255.255.255.0
	   ip address 192.168.1.20 255.255.240.0
	   ip igmp
	   ip ospf 10.0.0.2 area backbone
	   exit
	vlan 140
	   name "Free School Data Range 1"
	   untagged A1-A24,C1-C24,E1-E24
	   ip address 10.2.140.1 255.255.254.0
	   ip helper-address 10.5.200.10
	   ip helper-address 10.5.200.11
	   ip igmp
	   exit
	vlan 144
	   name "Free School Data Range 2"
	   untagged B1-B24,D1-D24,F1-F24
	   ip address 10.2.144.1 255.255.254.0
	   ip helper-address 10.5.200.10
	   ip helper-address 10.5.200.11
	   ip igmp
	   exit
	vlan 200
	   name "Free School Server Range"
	   untagged K1,L1
	   ip address 10.2.200.1 255.255.255.0
	   ip helper-address 10.5.200.11
	   ip helper-address 10.5.200.10
	   ip igmp
	   exit
	vlan 210
	   name "Free School Server Management"
	   untagged K2,L2
	   ip address 10.2.210.1 255.255.255.0
	   ip igmp
	   exit
	vlan 212
	   name "Free School Network Management"
	   ip address 10.2.212.1 255.255.255.0
	   exit
	vlan 214
	   name "Free School Wifi Management"
	   untagged K3-K14,L3-L14
	   ip address 10.2.214.1 255.255.255.0
	   ip helper-address 10.5.200.10
	   ip helper-address 10.5.200.11
	   exit
	vlan 218
	   name "CCTV"
	   ip address 10.2.218.1 255.255.255.0
	   ip igmp
	   exit
	vlan 220
	   name "Voice"
	   tagged A1-A24,B1-B24,C1-C24,D1-D24,E1-E24,F1-F24,K1-K20,L1-L19
	   ip address 10.2.220.1 255.255.255.0
	   ip helper-address 10.5.200.10
	   ip helper-address 10.5.200.11
	   ip igmp
	   voice
	   exit
	vlan 222
	   name "Free School Guest Wifi"
	   tagged A1-A24,B1-B24,C1-C24,D1-D24,E1-E24,F1-F24,K1-K20,L1-L19
	   ip address 172.22.16.1 255.255.252.0
	   ip helper-address 10.5.200.10
	   ip helper-address 10.5.200.11
	   ip igmp
	   exit
	vlan 224
	   name "Free School Trusted Wifi"
	   tagged A1-A24,B1-B24,C1-C24,D1-D24,E1-E24,F1-F24,K1-K20,L1-L19
	   ip address 10.2.224.1 255.255.240.0
	   ip helper-address 10.5.200.10
	   ip helper-address 10.5.200.11
	   ip igmp
	   exit
	vlan 240
	   name "Free School BYOD Wifi"
	   tagged A1-A24,B1-B24,C1-C24,D1-D24,E1-E24,F1-F24,K1-K20,L1-L19
	   ip address 172.22.0.1 255.255.248.0
	   ip helper-address 10.5.200.11
	   ip helper-address 10.5.200.10
	   exit
	spanning-tree
	spanning-tree A1 admin-edge-port
	spanning-tree A1 bpdu-protection
	
	spanning-tree Trk1 priority 4
	spanning-tree bpdu-protection-timeout 300 priority 0
	tftp server listen data
	loop-protect A1-A24,B1-B24,C1-C24,D1-D24,E1-E24,F1-F24,K1-K20,L1-L19
	loop-protect disable-timer 10

The VLAN interfaces that I can't ping are 212 and 218, either from the switch's management interface or from a computer attached to the network. 212 is likely never to have any ports (un)tagged.

 

Thanks

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



×
×
  • Create New...