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тАО08-11-2016 12:33 PM
тАО08-11-2016 12:33 PM
ACL Inter VLAN
Hi guys.
I'm trying to create an ACL to block the http access (the default gw of all vlans). So VLAN 1 cannot access the webpage of the VLAN 100 default GW for an example.
What I'm trying to do is to block the traffic that ingress the VLAN 1.
rule 0 deny tcp souce 192.168.11.0 0.0.0.255 destination 10.8.100.254 0 destination-port eq 80
interface vlan-interface 1 >> packet-filter <number> inbound
I'm a little bit confused with the traffic orientation when a SVI in involved.
Thanks in advance.
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тАО08-14-2016 08:08 PM
тАО08-14-2016 08:08 PM
Re: ACL Inter VLAN
Yes, the "direction" had me confused the first time, too.
If you want to filter traffic from VLAN1 (subnet1) to VLAN10 (subhnet10), then your rule should filter:
subnet1-->subnet10=deny
and then you apply it on the VLAN1 SVI "INbound".
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тАО08-15-2016 12:43 PM
тАО08-15-2016 12:43 PM
Re: ACL Inter VLAN
Hi.
I did the procedure as below:
Advanced ACL 3002, named BLOCK_HTTP_GW, 1 rule,
ACL's step is 5
rule 0 deny tcp source 192.168.11.0 0.0.0.255 destination 10.8.100.254 0 destination-port eq www
And applied on SVI VLAN1 interface, inbound.
Did not work. Do I need to block the IP protocol instead only tcp?
Thanks in advance.
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тАО08-15-2016 05:37 PM
тАО08-15-2016 05:37 PM
Re: ACL Inter VLAN
Do a simple access list that blocks everything first, so that you know that you are doing it right.
Then change it to something more specific.