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02-03-2021 04:35 AM
02-03-2021 04:35 AM
I need help with isolation vlan from other vlans
Hello
I have 3 vlans with each dhcp pool assigned , but i still can ping from vlan10 to vlan20 (i.e: can ping from 10.0.0.0 to 20.0.0.0 network and vice versa) same for vlan30 . How i can isolate each vlan alone please?
these are their configuration:
vlan 1
name "VLAN1"
no untagged 10-18
untagged 1-9,19-28
ip address dhcp-bootp
exit
vlan 10
name "vlan10"
untagged 10-12
ip address 10.0.0.1 255.255.255.0
dhcp-server
exit
vlan 20
name "vlan20"
untagged 13-15
ip address 20.0.0.1 255.255.255.0
dhcp-server
exit
vlan 30
name "vlan30"
untagged 16-18
ip address 30.0.0.1 255.255.255.0
dhcp-server
exit
Pools:
dhcp-server pool vlan10
HP-2620-24(vlan20)# authoritative
HP-2620-24(vlan20)# default-router 10.0.0.1
HP-2620-24(vlan20)# network 10.0.0.0 255.255.255.0
HP-2620-24(vlan20)# range 10.0.0.10 10.0.0.20
HP-2620-24(vlan20)# exit
dhcp-server pool vlan20
HP-2620-24(vlan20)# authoritative
HP-2620-24(vlan20)# default-router 20.0.0.1
HP-2620-24(vlan20)# network 20.0.0.0 255.255.255.0
HP-2620-24(vlan20)# range 20.0.0.10 20.0.0.20
HP-2620-24(vlan20)# exit
dhcp-server pool vlan30
HP-2620-24(vlan20)# authoritative
HP-2620-24(vlan20)# default-router 30.0.0.1
HP-2620-24(vlan20)# network 30.0.0.0 255.255.255.0
HP-2620-24(vlan20)# range 30.0.0.10 30.0.0.20
HP-2620-24(vlan20)# exit
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02-03-2021 05:05 AM
02-03-2021 05:05 AM
Re: I need help with isolation vlan from other vlans
If you want to stop all intervlan communication then disable 'ip routing' or you want to isolate some particular vlans then apply ACL.
Thanks!

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