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VACL VS RACL
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01-16-2009 02:07 AM
01-16-2009 02:07 AM
VACL VS RACL
VACL VS RACL
Hi everybody
i have several VLAN on my network architecture, i manage several network on distant sites connected to my vlan by MPLS.
i'd like to implement ACLs in order to block communication thru the tcp port 445 and 139. from my Vlans to my WAN and vice versa.
But i don't want to filter any communications within my local VLANS.
So i tested my first ACLS on one of my Vlan to prevent such communication to my WAN.
10.33.196.x is a subnet managed by the vlan which i test my ACL
and 10.33.1.x belongs to one of my distant site .
So i named it testacl
ip access-list extended "testprint"
deny tcp 10.33.196.10 0.0.0.0 10.33.1.233 0.0.0.0 eq 445 log
deny tcp 10.33.196.10 0.0.0.0 10.33.1.233 0.0.0.0 eq 139 log
deny tcp 10.33.196.10 0.0.0.0 eq 445 10.33.1.233 0.0.0.0 log
deny tcp 10.33.196.10 0.0.0.0 eq 139 10.33.1.233 0.0.0.0 log
permit ip 0.0.0.0 255.255.255.255 0.0.0.0 255.255.255.255
then i applied this ACL to my test vlan, i made a vacl
vlan 25 ip access-group testacl vlan
it worked, the communications were not granted over my WAN but worked within my Vlans
and i disabled it
no vlan 25 ip access-group testacl vlan
Then i applied the same ACL but made a RACL
vlan 25 ip access-group testacl in
i had the same effects.
but despite of all the docs i read, i don't quiet understand the main difference between those two ACLs.
what woulb be the best thing to do regarding my case ? VACL RACL ?
can someone light my way ?
thanks very very much
i have several VLAN on my network architecture, i manage several network on distant sites connected to my vlan by MPLS.
i'd like to implement ACLs in order to block communication thru the tcp port 445 and 139. from my Vlans to my WAN and vice versa.
But i don't want to filter any communications within my local VLANS.
So i tested my first ACLS on one of my Vlan to prevent such communication to my WAN.
10.33.196.x is a subnet managed by the vlan which i test my ACL
and 10.33.1.x belongs to one of my distant site .
So i named it testacl
ip access-list extended "testprint"
deny tcp 10.33.196.10 0.0.0.0 10.33.1.233 0.0.0.0 eq 445 log
deny tcp 10.33.196.10 0.0.0.0 10.33.1.233 0.0.0.0 eq 139 log
deny tcp 10.33.196.10 0.0.0.0 eq 445 10.33.1.233 0.0.0.0 log
deny tcp 10.33.196.10 0.0.0.0 eq 139 10.33.1.233 0.0.0.0 log
permit ip 0.0.0.0 255.255.255.255 0.0.0.0 255.255.255.255
then i applied this ACL to my test vlan, i made a vacl
vlan 25 ip access-group testacl vlan
it worked, the communications were not granted over my WAN but worked within my Vlans
and i disabled it
no vlan 25 ip access-group testacl vlan
Then i applied the same ACL but made a RACL
vlan 25 ip access-group testacl in
i had the same effects.
but despite of all the docs i read, i don't quiet understand the main difference between those two ACLs.
what woulb be the best thing to do regarding my case ? VACL RACL ?
can someone light my way ?
thanks very very much
2 REPLIES
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01-16-2009 02:21 AM
01-16-2009 02:21 AM
Re: VACL VS RACL
Re: VACL VS RACL
>but despite of all the docs i read, i don't
>quiet understand the main difference
>between those two ACLs.
The difference as I understand it is that a VACL is a layer 2 filter and could be applied to any switch regardless if IP routing is enabled, but a RACL works only on Layer 3 with IP routing and applies when traffic is routed from one VLAN to another.
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01-16-2009 03:31 AM
01-16-2009 03:31 AM
Re: VACL VS RACL
Re: VACL VS RACL
thanks for your answer, it looks obvious like that.
but it remains blur to me
but it remains blur to me
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
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