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тАО11-14-2010 12:40 PM
тАО11-14-2010 12:40 PM
5400zl ACL question
I have 3 VLAN's (1, 11,12) setup with the following addresses below and I want to create a named ACL to block all internet access from VLAN12 but allow all traffic to the rest of my domain (10.0.0.0) only. What is the best way to do this.
VLAN 1 | 10.40.0.0 255.255.0.0
VLAN 11 | 10.41.0.0 255.255.0.0
VLAN 12 | 10.42.0.0 255.255.0.0
Thanks,
Jeff
VLAN 1 | 10.40.0.0 255.255.0.0
VLAN 11 | 10.41.0.0 255.255.0.0
VLAN 12 | 10.42.0.0 255.255.0.0
Thanks,
Jeff
3 REPLIES 3
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тАО11-14-2010 04:41 PM
тАО11-14-2010 04:41 PM
Re: 5400zl ACL question
Hi,
That's fairly simple, assuming you are routing VLAN 12 on your 5400 you'd want something like this:
ip access-list extended VLAN_12_ACL_IN
permit ip 10.42.0.0 0.0.255.255 10.0.0.0 0.255.255.255
vlan 12 ip access-group VLAN_12_ACL_IN in
That's fairly simple, assuming you are routing VLAN 12 on your 5400 you'd want something like this:
ip access-list extended VLAN_12_ACL_IN
permit ip 10.42.0.0 0.0.255.255 10.0.0.0 0.255.255.255
vlan 12 ip access-group VLAN_12_ACL_IN in
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тАО11-15-2010 05:46 AM
тАО11-15-2010 05:46 AM
Re: 5400zl ACL question
Thanks Mohammed,
Yep I do have all 3 VLAN's routed. Will I have to also add another line for "permit ICMP" to allow ping for trouble shooting?
Yep I do have all 3 VLAN's routed. Will I have to also add another line for "permit ICMP" to allow ping for trouble shooting?
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тАО11-15-2010 10:39 AM
тАО11-15-2010 10:39 AM
Re: 5400zl ACL question
Hi,
No, you shouldn't need to add anything to allow hosts on VLAN 12 to ping other hosts on the 10.0.0.0/8 network (ICMP traffic is IP traffic).
No, you shouldn't need to add anything to allow hosts on VLAN 12 to ping other hosts on the 10.0.0.0/8 network (ICMP traffic is IP traffic).
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