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feat(dedibox-rpn): new page to test different RPN in rescue mode - ext-feat-rescue-rpn-ddx-network
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‎pages/dedibox-rpn/how-to/assets/scaleway_dedibox_rpn_rescue_network.png‎

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‎pages/dedibox-rpn/how-to/assets/scaleway_dedibox_rpn_rescue_page_list.png‎

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‎pages/dedibox-rpn/how-to/test-rpn-rescue.mdx‎

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validation: N/A
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posted: 2025-09-30
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---
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import image from 'assets/scaleway_dedibox_rpn_rescue_network.png'
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import image2 from 'assets/scaleway_dedibox_rpn_rescue_page_list.png'
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<Message type="tip">
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To put the servers into rescue mode, you can consult this [page](/dedibox/how-to/use-rescue-mode/).
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</Message>
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</Message>
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# RPNv1
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<Message type="important">
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Please ensure that you have your RPN group with at least two servers in it for the test.
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<Lightbox image={image2} alt="" />
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</Message>
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You can access your RPN groups page [here](https://console.online.net/fr/server/rpn).
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- On both servers
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Install ***isc-dhcp-client*** with this command:
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```sh
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apt install isc-dhcp-client
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```
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Execute this command to automatically request a network configuration.
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```sh
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dhclient
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```
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Once this command has been executed, it will automatically find the IP address.
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```sh
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3: enp0s20f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP group default qlen 1000
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link/ether 00:07:cb:0b:8d:d2 brd ff:ff:ff:ff:ff:ff
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inet 10.91.173.31/24 brd 10.91.173.255 scope global dynamic enp0s20f1
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valid_lft 388239557sec preferred_lft 388239557sec
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inet6 fe80::207:cbff:fe0b:8dd2/64 scope link
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valid_lft forever preferred_lft forever
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```
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Here is the result demonstrating that RPNv1 works.
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- Server A :
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```sh
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3: enp0s20f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP group default qlen 1000
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link/ether 00:07:cb:0b:8d:d2 brd ff:ff:ff:ff:ff:ff
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inet 10.91.173.31/24 brd 10.91.173.255 scope global dynamic enp0s20f1
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valid_lft 388239325sec preferred_lft 388239325sec
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inet6 fe80::207:cbff:fe0b:8dd2/64 scope link
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valid_lft forever preferred_lft forever
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root@rescue-ddx:~# ping 10.91.173.41
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PING 10.91.173.41 (10.91.173.41) 56(84) bytes of data.
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64 bytes from 10.91.173.41: icmp_seq=1 ttl=64 time=0.366 ms
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64 bytes from 10.91.173.41: icmp_seq=2 ttl=64 time=0.081 ms
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64 bytes from 10.91.173.41: icmp_seq=3 ttl=64 time=0.114 ms
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64 bytes from 10.91.173.41: icmp_seq=4 ttl=64 time=0.077 ms
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64 bytes from 10.91.173.41: icmp_seq=5 ttl=64 time=0.110 ms
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64 bytes from 10.91.173.41: icmp_seq=6 ttl=64 time=0.296 ms
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^C
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--- 10.91.173.41 ping statistics ---
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6 packets transmitted, 6 received, 0% packet loss, time 111ms
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rtt min/avg/max/mdev = 0.077/0.174/0.366/0.113 ms
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root@rescue-ddx:~#
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```
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- Server B :
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```sh
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3: enp0s20f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc mq state UP group default qlen 1000
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link/ether 00:07:cb:0b:8d:5a brd ff:ff:ff:ff:ff:ff
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inet 10.91.173.41/24 brd 10.91.173.255 scope global dynamic enp0s20f1
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valid_lft 388239321sec preferred_lft 388239321sec
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inet6 fe80::207:cbff:fe0b:8d5a/64 scope link
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valid_lft forever preferred_lft forever
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root@rescue-ddx:~# ping 10.91.173.31
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PING 10.91.173.31 (10.91.173.31) 56(84) bytes of data.
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64 bytes from 10.91.173.31: icmp_seq=1 ttl=64 time=0.143 ms
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64 bytes from 10.91.173.31: icmp_seq=2 ttl=64 time=0.077 ms
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64 bytes from 10.91.173.31: icmp_seq=3 ttl=64 time=0.076 ms
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64 bytes from 10.91.173.31: icmp_seq=4 ttl=64 time=0.113 ms
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64 bytes from 10.91.173.31: icmp_seq=5 ttl=64 time=0.098 ms
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64 bytes from 10.91.173.31: icmp_seq=6 ttl=64 time=0.091 ms
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^C
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--- 10.91.173.31 ping statistics ---
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6 packets transmitted, 6 received, 0% packet loss, time 112ms
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rtt min/avg/max/mdev = 0.076/0.099/0.143/0.025 ms
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root@rescue-ddx:~#
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```
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# RPNv2
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1. On each server page, you will find a network section.
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<Lightbox image={image} alt="" />
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2. You will need to retrieve the MAC address where there is a private IP address.
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3. Log in to rescue mode and enter this command:
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```sh
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ip a
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```
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You should obtain this result:
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```sh
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root@rescue-ddx:~# ip a
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1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
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link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
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inet 127.0.0.1/8 scope host lo
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valid_lft forever preferred_lft forever
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inet6 ::1/128 scope host
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valid_lft forever preferred_lft forever
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2: enp0s20f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
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link/ether 00:07:cb:0b:8d:d1 brd ff:ff:ff:ff:ff:ff
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inet 51.15.9.61/24 brd 51.15.9.255 scope global enp0s20f0
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valid_lft forever preferred_lft forever
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inet6 fe80::207:cbff:fe0b:8dd1/64 scope link
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valid_lft forever preferred_lft forever
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3: enp0s20f1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
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link/ether 00:07:cb:0b:8d:d2 brd ff:ff:ff:ff:ff:ff
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root@rescue-ddx:~#
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```
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For our example, the **enp0s20f1** interface is required for the RPN and matches with the MAC address retrieved on the console.
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4. Enable the network interface with this command:
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```sh
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ip link set enp0s20f1 up
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```
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You can see that the interface is UP.
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```sh
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3: enp0s20f1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
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link/ether 00:07:cb:0b:8d:d2 brd ff:ff:ff:ff:ff:ff
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inet6 fe80::207:cbff:fe0b:8dd2/64 scope link
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valid_lft forever preferred_lft forever
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root@rescue-ddx:~#
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```
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You can now retrieve the VLAN ID for each server in your RPNv2 Group or create it [here](https://console.online.net/fr/server/rpn/v2).
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- In our example, we have two servers with VLAN ID 2000.
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- On each server, you will need to execute these commands to configure RPNv2.
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```sh
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ip link add link enp0s20f1 name enp0s20f1.2000 type vlan id 2000
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```
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- On server A :
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```sh
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ip addr add 10.0.0.1/24 dev enp0s20f1.2000
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```
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- On server B:
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```sh
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ip addr add 10.0.0.2/24 dev enp0s20f1.2000
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```
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<Message type="note">
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If you have successfully pinged both IPs from both servers, this indicates that RPNv2 is functioning.
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</Message>
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# Test the RPN bandwidth with Iperf3
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<Message type="tip">
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Iperf3 is already installed in rescue mode.
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</Message>
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- On server A
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You need to launch iperf3 in server mode with this command:
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```sh
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iperf3 -s
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```
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- On server B
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You need to launch iperf3 in client mode with this command:
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```sh
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iperf3 -c PRIVATE_IP
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```
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You will then obtain a result:
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```sh
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root@rescue-ddx:~# iperf3 -c 10.91.173.31
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Connecting to host 10.91.173.31, port 5201
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[ 5] local 10.91.173.41 port 36966 connected to 10.91.173.31 port 5201
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[ ID] Interval Transfer Bitrate Retr Cwnd
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[ 5] 0.00-1.00 sec 133 MBytes 1.11 Gbits/sec 141 8.74 KBytes
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[ 5] 1.00-2.00 sec 28.1 MBytes 236 Mbits/sec 221 8.74 KBytes
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[ 5] 2.00-3.00 sec 34.1 MBytes 286 Mbits/sec 259 8.74 KBytes
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[ 5] 3.00-4.00 sec 28.0 MBytes 234 Mbits/sec 234 8.74 KBytes
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[ 5] 4.00-5.00 sec 27.5 MBytes 230 Mbits/sec 196 17.5 KBytes
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[ 5] 5.00-6.00 sec 32.9 MBytes 276 Mbits/sec 258 402 KBytes
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[ 5] 6.00-7.00 sec 29.2 MBytes 245 Mbits/sec 227 17.5 KBytes
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[ 5] 7.00-8.00 sec 27.7 MBytes 232 Mbits/sec 212 26.2 KBytes
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[ 5] 8.00-9.00 sec 27.2 MBytes 228 Mbits/sec 225 17.5 KBytes
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[ 5] 9.00-10.00 sec 34.6 MBytes 291 Mbits/sec 273 17.5 KBytes
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- - - - - - - - - - - - - - - - - - - - - - - - -
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[ ID] Interval Transfer Bitrate Retr
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[ 5] 0.00-10.00 sec 402 MBytes 337 Mbits/sec 2246 sender
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[ 5] 0.00-10.04 sec 400 MBytes 334 Mbits/sec receiver
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iperf Done.
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root@rescue-ddx:~#
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```

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