Connection to external network via management network. Possible? #2861
routingpackets
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Features
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Hi, you can use a smaller subnet for your netlab management network (i.e., 10.123.123.128/25), and enable proxy arp on the interface facing the 10.123.123/24 network. |
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@ssasso -- Awesome idea. Should have thought of that a long time ago. @routingpackets -- it would be great if you could publish the bits of the topology file and proxy arp setup. I would love to add it as an example to the documentation, and while I know (approximately) how to reproduce it, it's way easier if I get a working solution ;)) |
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Hi, this is the only way I found to try to check if this is something possible with netlab. I have netlab running on an esxi server that is on a private network 10.123.123.0/24. This network does not have DHCP enabled and the gateway 10.123.123.1 is already configured on an external router and I can only access it through a VPN. The idea of the lab is to have the mgmt interfaces get an IP from 10.123.123.0/24 and pointing to a different IP on the netlab vm within esxi that would bridge this traffic to 10.123.123.1, so I can access remotely. I tried several things, I could already change the mgmt subnet and it will pull an IP from 10.123.123.0/24, but then netlab configures the 10.123.123.1 on the esxi netlab vm and this conflcts with the external router 10.123.123.1/24. Maybe this is already possible but I am not doing it right and maybe missing something in my topology file =/
I need to have the management interfaces accessible from outside.
`provider: clab
defaults:
device: iol
devices.iol.clab.image: vrnetlab/cisco_iol:17-16-01a
devices.linux.clab.image: ghcr.io/srl-labs/network-multitool
addressing:
mgmt:
ipv4: 10.122.17.0/23
start: 221
nodes:
rc1:
device: iol
rc2:
device: iol
rc3:
device: iol
rc4:
device: iol
pc1:
device: linux
pc2:
device: linux
pc3:
device: linux
pc4:
device: linux
links:
Thanks in advance!
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