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isolate ip network of vlan from other on same port

isolate ip network of vlan from other on same port

sumeet
New Contributor
Here is the scenario
we have multiple VLAN's configured as follows.

VLAN 2001 setting

create vlan "vlan2001"
configure vlan vlan2001 tag 2001
configure vlan vlan2001 add ports 21-24 tagged
configure vlan vlan2001 ipaddress 10.0.0.1 255.255.255.0
configure vlan vlan2001 dhcp-address-range 10.0.0.3 - 10.0.0.100
configure vlan vlan2001 dhcp-options default-gateway 10.0.0.1
enable ipforwarding vlan vlan2001
enable dhcp ports 21-24 vlan vlan2001

There are lots of other vlans
for example
create vlan "vlan199"
configure vlan vlan199 tag 199
configure vlan vlan199 add ports 21-24 tagged
configure vlan vlan199 ipaddress 172.16.199.1 255.255.255.0
configure vlan vlan199 dhcp-address-range 172.16.199.2 - 172.16.199.200
configure vlan vlan199 dhcp-options default-gateway 172.16.199.1
enable ipforwarding vlan vlan199
enable dhcp ports 21-24 vlan vlan199

Similiarly we have vlan 101 to 198 with ip 172.16.<101-198>.1 and dhcp range 172.16.<101-198>199.2 - 172.16.<101-198>.200
I want that 172.16.<101-199>.x should not be able to ping 10.0.0.x
How should I do that ?

Thanks.
26 REPLIES 26

JeremyClarkson
New Contributor
"This virtual router concept I couldn't grasp."

food for thought????

sumeet
New Contributor
Finally my aim is that network of vlan 2001 (10.0.1/24) and vlan1967(172.16.92.1/24) should not be accessible to other vlans.
All other vlans may access each other's gateway.
The trunk port(21-24) will get data of all vlans.

To have less complication let's forget vlan1967.
So, If I could keep vlan 2001 network inaccessible to other vlan.
Also , can do if other vlan's do or don't ping each other's network.

This virtual router concept I couldn't grasp.

So if you have the vlan 2001 in the user defined vr vr-v2001 (just an example for a name) and the vlan 199 in a different user defined vr e.g. vr-access then these vlan are isolated by default and you don't need any ACLs



can you not just disable ipforwarding on the default VR?

JeremyClarkson
New Contributor
wow...thats alot....

can you not just disable ipforwarding on the default VR?

André_Herkenrat
Extreme Employee
I saw a lots of routes and vlans. What is the solution you plan to build ?

sumeet
New Contributor
http://pastebin.com/Y9uvLWsC

it's a 479 line file of 40kB .
GTM-P2G8KFN