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Professional Discussions => Routing and Switching => Topic started by: robertkwild on January 26, 2018, 04:11:22 AM

Title: blocking access to a network on HPE switch
Post by: robertkwild on January 26, 2018, 04:11:22 AM
hi all,


i have a HPE switch and i have telneted in and i want to know the command(s) to block access to a network, so all other networks cant access this network


all my networks on the switch are VLANS and each VLAN has its own gateway ip so each VLAN can talk to eachother via the gateway ip


the easiest solution would be on the network that i want to be private is to put in no gateway ip but i need to have this as i want it to talk to the other networks but not other networks to talk to it


cheers,


rob
Title: Re: blocking access to a network on HPE switch
Post by: icecream-guy on January 26, 2018, 06:39:08 AM
Quote from: robertkwild on January 26, 2018, 04:11:22 AM
hi all,


i have a HPE switch and i have telneted in and i want to know the command(s) to block access to a network, so all other networks cant access this network


all my networks on the switch are VLANS and each VLAN has its own gateway ip so each VLAN can talk to eachother via the gateway ip




the easiest solution would be on the network that i want to be private is to put in no gateway ip but i need to have this as i want it to talk to the other networks but not other networks to talk to it


cheers,


rob


What model HPE switch?

I don't think it matters, you won't be able to do this

" i want it to talk to the other networks but not other networks to talk to it"

ACL's on a switch are not stateful,  if your switch was able to support ACL's  and could allow traffic going out, return traffic would be blocked by the ACL.

Again, what model HPE switch?

Cisco has something called private VLAN's which may do the trick,  I asked Uncle Google, he said that there is some support of isolated VLAN's on certain models of HPE switch.
Title: Re: blocking access to a network on HPE switch
Post by: icecream-guy on January 26, 2018, 06:41:35 AM
Quote from: ristau5741 on January 26, 2018, 06:39:08 AM
Quote from: robertkwild on January 26, 2018, 04:11:22 AM
hi all,


i have a HPE switch and i have telneted in and i want to know the command(s) to block access to a network, so all other networks cant access this network


all my networks on the switch are VLANS and each VLAN has its own gateway ip so each VLAN can talk to eachother via the gateway ip




the easiest solution would be on the network that i want to be private is to put in no gateway ip but i need to have this as i want it to talk to the other networks but not other networks to talk to it


cheers,


rob


What model HPE switch?

I don't think it matters, you won't be able to do this

" i want it to talk to the other networks but not other networks to talk to it"

ACL's on a switch are not stateful,  if your switch was able to support ACL's  and could allow traffic going out, return traffic would be blocked by the ACL.

Again, what model HPE switch?

Cisco has something called private VLAN's which may do the trick,  I asked Uncle Google, he said that there is some support of isolated VLAN's on certain models of HPE switch.

I would negate that comment...


you won't be able to do this

" i want it to talk to the other networks but not other networks to talk to it"


You would need to put ACL's on all the other SVI's denying traffic to the network you want to protect.
Title: Re: blocking access to a network on HPE switch
Post by: robertkwild on January 26, 2018, 07:09:11 AM
i have one of these -

https://h20195.www2.hpe.com/v2/getpdf.aspx/4aa3-0717enw.pdf