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Aerflex Network Prerequisites - Firewall Configuration and AP subnets

List of known ports & URLs that need to be opened for the Celona network

Written by Team Celona

Celona Access Points, Cloud core and Celona Orchestrator must communicate over the existing enterprise LAN/WAN infrastructure to enable zero-touch provisioning and cloud-based management of the Private Wireless network. For seamless Day 0 & Day N operations of the Celona Private Wireless network, enterprise firewalls must be configured to allow specific discovery, management, provisioning, and troubleshooting functions.

Please refer to the following tables for detailed firewall configurations to allow communication between Celona AP, Cloud core, and Orchestrator.

4.1 Access Point & Internet

Allow outbound access from Celona Access Points to the following Celona Cloud endpoints:

Note: Both port 500 (IKE) and 4500 (NAT-T) UDP must be open for each Aerflex Cloud region used in the deployment. Open only the region(s) applicable to your geography.

Allow outbound access from Celona Access Points to the following Celona Cloud endpoints:

URL

IP Address

Port

Protocol

Direction

Purpose

54.176.31.199

443

TCP

Edge → Cloud

Celona Orchestrator — Discovery, configuration & reporting

54.177.198.17

443

TCP

Edge → Cloud

Diagnostics and troubleshooting

35.190.147.229

500

UDP

AP → Aerflex Cloud (US East)

IKE tunnel setup

35.190.147.229

4500

UDP

AP → Aerflex Cloud (US East)

IPSec NAT traversal

34.106.171.201

500

UDP

AP → Aerflex Cloud (US West)

IKE tunnel setup

34.106.171.201

4500

UDP

AP → Aerflex Cloud (US West)

IPSec NAT traversal

34.175.36.148

500

UDP

AP → Aerflex Cloud (Europe)

IKE tunnel setup

34.175.36.148

4500

UDP

AP → Aerflex Cloud (Europe)

IPSec NAT traversal

Note: Both port 500 (IKE) and 4500 (NAT-T) UDP must be open for each Aerflex Cloud region used in the deployment. Open only the region(s) applicable to your geography.

4.2 Access Point & Enterprise Network

Allow the following access between Celona Access Points and the enterprise network:

URL / IP Address

Port

Protocol

Direction

Purpose

NTP server IP address

123

UDP

AP → Enterprise

Time synchronization. Configured via DHCP Option 42.

DNS server IP address

53

UDP

AP → Enterprise

DNS resolution for Celona Cloud services. Configured via DHCP.

PTP server IP address

319

UDP

AP ↔ Enterprise

PTP (Precision Time Protocol) time synchronization

PTP server IP address

320

UDP

AP ↔ Enterprise

PTP time synchronization

Not applicable

N/A

ICMP

AP ↔ Enterprise

Basic network troubleshooting

4.3 End-Device and Internet for eSIM Provisioning

Allow outbound access from end-devices to the cloud hosting eSIM profiles:

URL / IP Address

Port

Protocol

Direction

Purpose

443

TCP

Device → Internet

SMDP+ server that hosts eSIM profiles. Devices connect to this server to download their eSIM profile.

4.4 AP Internal Subnet Restrictions

Do not use the following subnets in the enterprise network. They are reserved for the Aerflex dataplane and will cause routing conflicts if overlapping subnets exist on the LAN:

  • 192.168.111.0/24

  • 192.168.112.0/24

  • 192.168.113.0/24

  • 192.168.169.0/24

  • 172.213.0.0/16

Subnet conflict warning: If any of these subnets overlap with existing enterprise subnets, contact Celona support before proceeding with the deployment.

Direction Key

  • Edge → Cloud: Outbound from Access Point to Celona Cloud

  • AP → Enterprise: Outbound from Access Point to enterprise network

  • AP ↔ Enterprise: Bidirectional between Access Point and enterprise network

  • Device → Internet: Outbound from 5G user device to internet

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