The Water Cooler

  • 1.  Trouble with ACLs on virtual interface

    Posted Dec 06, 2018 02:50 AM

    We're setting up a network with several ICX switches. We've got several VLANs configured, each one associated with a virtual interface. Below is the configuration for VLAN and VE 10 and 20:

    vlan 10 name A by port
    tagged ethe 1/2/3 ethe 1/2/5 ethe 2/1/32 ethe 2/2/3 ethe 2/2/5
    untagged ethe 1/1/48
    router-interface ve 10
    !
    vlan 20 name B by port
    tagged ethe 1/2/3 ethe 1/2/5 ethe 2/1/32 ethe 2/2/3 ethe 2/2/5
    untagged ethe 1/1/4 to 1/1/6 ethe 2/1/4 to 2/1/6 ethe 2/1/9 to 2/1/10 ethe 2/1/12 ethe 2/1/17 to 2/1/18 ethe 2/1/21 ethe 2/1/23
    router-interface ve 20
    interface ve 10
    ip address 172.16.40.1 255.255.248.0
    ip helper-address 1 172.16.17.254
    !
    interface ve 20
    ip address 172.16.16.1 255.255.240.0
    Currently, all of the VLANs can talk to eachother, but we want to be able to restrict access to network resources on a per-VLAN basis.

    I'm trying to set up a layer 3 ACL so that VLAN 10 can *only* be accessed from VLAN 20. So I created the following access lists:

    ip access-list extended "A ACL IN"
    permit ip 172.16.16.0 0.0.15.255 any
    deny ip any any
    !
    ip access-list extended "A ACL OUT"
    permit ip any 172.16.16.0 0.0.15.255
    deny ip any any
    When adding these ACLs to VE 10:

    interface ve 10 ip access-group "A ACL IN" in
    interface ve 10 ip access-group "A ACL OUT" out
    Suddenly VLAN 10 can't access anything on VLAN 20 and vice versa. Can anyone see what I'm doing wrong here?

     


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  • 2.  Re: Trouble with ACLs on virtual interface

    Posted Dec 06, 2018 04:24 AM

    @jaikapoor

     

    ICX Switch line was acquired by Ruckus, please post your question on their Ruckus Community


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