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I've been smashing my head against my desk over this all morning.
HP Procurve environment with a 5412zl at the core.
VLANs... "teacher" PCs are on a different subnet to the "student" PCs.
I understand that Lanschool should work if you configure it with directed broadcasts - I've done this.
I've also enabled the following commands on my core switch:
ip directed-broadcast
ip udp-bcast-forward
Yet still it doesn't work.
Has anyone else got this working in a similar environment?
Cheers,
Ant
Please find the attached hope it helps. These came from LanSchool themselves.
Thanks @FN-GM, those are the docs I've used as a reference. But I'm still stuck... :-/
Bumpity bump.
Anyone else?!
Sorted it.
Needed to put in the following command for the originating VLAN:
ip forward-protocol udp x.x.x.x 1053
ip forward-protocol udp x.x.x.x 796
Where x.x.x.x is the broadcast address for the destination VLAN...
NB. It helps a lot if you use the correct broadcast address. D'oh.
Does anyone know the equivalent for Cisco stuff please?Quote:
Originally Posted by pantscat
It should be pretty similar - but ever so subtly different!
Do you need to get it working for multicast or directed broadcast?
@pantscat multicast if we can. ThanksQuote:
Originally Posted by pantscat
I think the "ip pim" command is what you need - but I'm not sure of the exact syntax required.
This might help though: Cisco IOS IP Multicast Command Reference - ip pgm host through ip pim version* [Support] - Cisco Systems
I've got the same problem as pantscat but with a differnce of 'it used to work'. I am completely confused as to why it's now not showing anything across the vlans. The only thing I did to possibly affect this was to upgrade the FW of the core over the summer but using Lanschools own tools, I can test the UDP to a pupil machine and it seems to work. Just no show in the main console screen.
Of course, within the same vlan it is fine, just between them it fails. Ideas? It was so useful too!
@MrBrow - what's the config on your core switch(es)?
Thanks @pantscat Config below (i've ripped some of the non-useful parts out - just port settings) As mentioned, the only change I can think I made over the summer was to upgrade the FW on the core and some of the secondary switches (not all). The config will have remained unedited by myself.
IP Direct Broadcast is allowed so I haven't added any extra ports for this as since it worked before, my theory is that it should work now. I did upgrade to Lanschool 7.7 at some point recently but 7.6 isn't working either.
I have go around the crux of the issue now by setting up the Lanschool Connection Server which is working but since it doesnt have all the features yet, it isn't the most ideal solution.
Any thoughts more than welcome :)
Running configuration:
; J8697A Configuration Editor; Created on release #K.15.07.0008
; Ver #02:1b.2f:36
hostname "SWSvrRm-1"
module 1 type J8702A
module 2 type J8702A
module 3 type J8706A
interface A1
no power-over-ethernet
#
#
#
#
#
#
#
#
#
#
#
interface B24
no power-over-ethernet
exit
trunk B22,B24 Trk1 Trunk
trunk B19,C6 Trk2 Trunk
trunk C13-C14 Trk3 Trunk
trunk C3,C7 Trk4 Trunk
trunk C2,C15 Trk5 Trunk
trunk B1-B3 Trk6 LACP
trunk B4-B6 Trk7 LACP
trunk B21,B23 Trk8 Trunk
ip default-gateway 10.0.0.1
ip routing
ip directed-broadcast
ip zero-broadcast
vlan 1
name "DEFAULT_VLAN"
untagged A1-A3,A5-A9,A13-A24,B13,B15,B18,C1,C4-C5,C8-C11,C16-C24,Trk1-Trk5,Trk8
ip helper-address 10.0.2.51
ip address 10.0.6.1 255.255.0.0
tagged C12,Trk6-Trk7
no untagged A4,A10-A12,B7-B12,B14,B16-B17,B20
exit
vlan 217
name "ADM"
untagged B17,B20
ip helper-address 10.0.2.51
ip helper-address 10.0.2.61
ip address 10.217.123.254 255.255.255.0
tagged B10,C5,C9,Trk1-Trk8
exit
vlan 20
name "STN"
ip helper-address 10.0.2.51
ip helper-address 10.0.2.61
ip address 10.1.20.254 255.255.255.0
tagged B15,C1,C4-C5,C16,Trk1-Trk4,Trk6-Trk8
ip directed-broadcast
exit
vlan 21
name "DFT"
ip helper-address 10.0.2.51
ip helper-address 10.0.2.61
ip address 10.1.21.254 255.255.255.0
tagged C1,C4-C5,C8-C9,C16,Trk1-Trk8
exit
vlan 8
name "CCTV"
ip address 10.1.8.254 255.255.255.0
tagged C1,C4,Trk1,Trk4,Trk6-Trk8
exit
vlan 3
name "NAS"
qos priority 1
ip address 10.1.3.254 255.255.255.0
tagged C9,Trk4
jumbo
exit
vlan 26
name "LFP_WIRELESS"
ip helper-address 10.0.2.51
ip address 10.1.26.254 255.255.255.0
tagged C1,C10-C11
exit
vlan 5
name "PRN"
ip helper-address 10.0.2.51
ip address 10.1.5.254 255.255.255.0
tagged C1,C4-C5,C8-C9,C16,Trk1-Trk8
exit
vlan 100
name "WIRELESS"
untagged C12
ip helper-address 10.0.2.51
ip address 10.1.100.254 255.255.255.0
tagged C1,C10-C11,Trk1
exit
vlan 40
name "iSCSI"
untagged B7-B12,B14,B16
no ip address
jumbo
exit
vlan 41
name "HyperVCluster"
untagged A4,A10
no ip address
exit
vlan 247
name "Ext"
untagged A11-A12
tagged Trk6-Trk7
no ip address
exit
power-over-ethernet pre-std-detect
timesync sntp
sntp unicast
sntp server priority 1 10.0.2.51
no telnet-server
web-management ssl
ip route 0.0.0.0 0.0.0.0 10.0.0.1
router rip
redistribute connected
enable
exit
snmp-server community "public" unrestricted
snmp-server host 10.0.28.70 community "public"
snmp-server host 10.0.2.31 community "public"
snmp-server location "Server Room, ROSLA"
spanning-tree Trk1 priority 4
spanning-tree Trk2 priority 4
spanning-tree Trk3 priority 4
spanning-tree Trk4 priority 4
spanning-tree Trk5 priority 4
spanning-tree Trk6 priority 4
spanning-tree Trk7 priority 4
spanning-tree Trk8 priority 4
vlan 20
ip rip 10.1.20.254
ip rip 10.1.20.254 receive v1-or-v2
ip rip 10.1.20.254 send v1-compatible-v2
exit
@MrBrow - I'll have a look at this and get back to you! Need more coffee to make sense of it...
Right - I've had a chance to have a quick look.
Try using the "ip udp-bcast-forward" command in your config.
You may also need to tell the switch where to forward the broadcasts, but we'll worry about that if this doesn't work!
If you don't want to mess around with switch configs you can give the Connection Server a try. I loaded it on one of our apps servers and it works great. Didn't want to enable multicast forwarding on our wireless teacher VLAN.