Bloomberg Network Connectivity
Guide
Technical Guide
Q2. 2024
Version: 1.6
2
Contents
1. Overview ......................................................................................................... 3
2. Bloomberg Network Access Requirements ................................................. 4
2.1. Access to the Bloomberg Infrastructure via Network Access services .................................. 4
2.2. Capacity and Bandwidth Requirements – Bloomberg Terminal ............................................ 5
2.3. Network Address Specifications – Bloomberg Terminal ....................................................... 7
2.4. Network Ports – Bloomberg Terminal ................................................................................... 7
2.5. Network Address Specifications – Enterprise and Feeds Products ...................................... 8
2.6. Network Ports – Enterprise and Feeds Products .................................................................. 8
2.7. Bloomberg CPE Router ........................................................................................................ 9
3. Internet and BRIN (Bloomberg over Reliable Internet) .............................. 10
3.1. Network Address Specifications ......................................................................................... 10
3.2. Network Ports ..................................................................................................................... 10
4. Bloomberg DCA Add-In ............................................................................... 11
4.1. Bloomberg DCA Network Address Specifications ............................................................... 11
5. SFTP Connectivity ........................................................................................ 12
5.1. Bloomberg SFTP Connectivity Overview ............................................................................ 12
5.2. BVault SFTP ....................................................................................................................... 12
6. Additional Network Requirements .............................................................. 13
6.1. Requirements to Access Content from Web Links on the Terminal .................................... 13
6.2. Network requirements for ROOM. ...................................................................................... 14
6.3. Firewalls ............................................................................................................................. 14
6.4. Virtual Private Network (VPN) ............................................................................................ 15
6.5. Socks5 Proxy Server - Bloomberg Terminal Services ........................................................ 15
7. Appendix ....................................................................................................... 17
7.1. Connectivity Diagrams ................................................................................................... 17
3
1. Overview
This document provides network and connectivity specifications for Bloomberg products and
services. The information given is intended to make the process of configuring a client system
and network easy and reliable, for both initial setup and regular maintenance. It is intended for
desktop, systems and network administrators, as well as home and/or standalone users.
Bloomberg also provides a range of other supplemental documentation on setting up, configuring
and maintaining the Bloomberg Terminal®. These are available on the Documentation Support
page of the Bloomberg Professional Services website. For further information on procedures,
technical questions, and common troubleshooting steps, visit the Frequently A sked Questions
section.
For any additional clarification or assistance regarding any of the topics covered here or in other
documents, Bloomberg Customer Support is available 24/7 for any queries.
Please note that the information provided in this document is for informational purposes only, is
subject to change, and is provided without any representation or warranty, express or implied,
as to the accuracy or completeness of such information. Provision of applicable services is
subject to agreement to the terms and conditions of a definitive final contract. In the event of any
inconsistency between this information and the terms of a final contract, the terms of the final
contract shall govern.
4
2. Bloomberg Network Access Requirements
2.1. Access to the Bloomberg Infrastructure via Network Access services
Access to the Bloomberg infrastructure includes defined connectivity protocols and standards.
All applicable configuration parameters are fully tested to work with Bloomberg applications and
services and are optimized for failover scenarios.
Configurations are deployed using automated provisioning tools to eliminate any manual errors.
Bloomberg is unable to support or store any bespoke configurations or modified parameters.
Bloomberg offers 24/7 customer support that is dedicated to providing a fast and efficient service.
By following this model, Bloomberg is able to provide the best possible technical assistance to
our clients.
Figure 1. below, shows customer access to Bloomberg’s infrastructure using Bloomberg’s
Network Access service. This access includes connectivity to Bloomberg’s network,
and its data centers.
Figure 1. Overview of Bloomberg’s Network Access service
5
Bloomberg provisions redundant communication circuits among Bloomberg’s data centers.
Connectivity to a given customer site requires yet another set of private/leased circuits from
Bloomberg’s data centers (usually from the remote node sites depending on geographical
locations) to customer locations.
Figure 1. Depicts a model where a Network Access services customer site is connected to the
nearest Bloomberg nodes utilizing two redundant circuits. More detailed diagrams can be found
in the appendix.
2.2. Capacity and Bandwidth Requirements – Bloomberg Terminal
Bloomberg support teams determine the size/capacity of these circuits based on the number of
Terminals at a given customer location. Table 1 below, shows Bloomberg’s Network Access
guideline.
Bloomberg Terminal Network Guideline
Terminal
Count
Router
Quantity
Bloomberg
Appliances
LAN
Interface*
Access Capacity
< 10
1
-
1Gb
5 - 10 Mbps
10 - 30
2
2
1Gb
5 - 10 Mbps
31 – 40
2
2
1Gb
10 - 20 Mbps
41 – 50
2
2
1Gb
20 - 50 Mbps
51- 100
2
2
1Gb
50 - 100 Mbps
100-250
2
2
10Gb
100 - 1000 Mbps
250+
2
4**
10Gb
100 - 1000 Mbps
● The bandwidth guideline table is based on statistical analysis of network utilization of existing Bloomberg terminals
across the global Bloomberg customer base as well as circuit size offering by various telecom service providers.
Individual customer connectivity and bandwidth capacity recommendations are made based on continual automated
monitoring as well as evaluation by Bloomberg customer support personnel.
● The actual Network Access capacity is subject to availability at the time of the order.
● For customer sites with 1-9 Terminals a single router and circuit with backup through the Internet may be acceptable.
All other customer sites are required to have multiple diverse circuits and dual routers.
● The bandwidth (bps) recommendations are for a single router. Dual router sites will require double the stated
bandwidth.
● (*) LAN interface duplex set on client’s request OR Auto/Auto if client doesn’t have a preference.
● (**) more Bloomberg Appliances may be required.
Table 1. – Network Access Guideline
6
Connectivity from Bloomberg node sites to customer locations terminate at Bloomberg supplied
routers installed at the customer sites. These are referred to as CPE (Customer Premises
Equipment) routers. Bloomberg support teams work with customer IT staff to install and connect
up these routers.
Figure 1. Depicts a redundant circuit installation, which in turn requires two Bloomberg CPE
routers. Bloomberg CPE routers may also come with an attached server module (except in a
very few cases). The combination of the router and server are known as the Bloomberg
Appliance. The server modules are Linux based and are designed to fan out Bloomberg data
services locally for better WAN circuit utilization. Bloomberg Appliances are installed in pairs
when there are 10 or more Terminals and are always attached to a pair of CPE routers. Single
Bloomberg Appliance deployment (not in pairs) may be implemented for a client's Disaster
Recovery (DR) site.
Prior to shipping CPE routers and/or Bloomberg Appliances to a customer site, customers will
receive a “Router Survey Document”. In this survey, the customer’s IT personnel specify the
IP addresses of the LAN ports (the router Ethernet ports that connect to the client’s LAN
infrastructure) of the Bloomberg CPE routers for configuration. Additional technical information
is also discussed and decided on, such as the routing protocols; eBGP (with BFD support),
HSRP, VRRP and Static routes for use between Bloomberg CPE routers and the customer’s
network environment. It is important to note that the Bloomberg CPE routers and Bloomberg
Appliances are entirely owned and operated by Bloomberg and customers must not access or
attempt to access the equipment’s configuration.
7
2.3. Network Address Specifications – Bloomberg Terminal
Customers must provide IP addresses on which the Bloomberg CPE routers will reside within
the customer network. These IP addresses, along with any other used to connect to Bloomberg,
do not necessarily have to be IANA registered.
Table 2. The required IP address ranges to which customers must be able to connect in order
to access Bloomberg Terminal services. Customers must ensure they can route to these IP
addresses, and more specific subnets within these ranges.
Bloomberg IP Address Ranges:
208.134.161.0/24
205.183.246.0/24
199.105.176.0/21
199.105.184.0/23
69.184.0.0/16
Table 2. Bloomberg IP address ranges
2.4. Network Ports – Bloomberg Terminal
In addition to the required IP address ranges, it is also necessary for specific UDP and TCP port
ranges to be allowed through customer access lists and firewalls. Table 3. Below shows
Bloomberg’s specific ports. It should be noted that the destination ports specified are the port
numbers that Bloomberg servers listen on at the Bloomberg data centers.
The Bloomberg Terminal uses the following source and destination port numbers. Please note,
destination is from the client (Terminal) perspective.
UDP Source Ports
UDP Destination Ports
48129 – 48137 & 49152 - 655351
48129 — 48137
TCP Source Ports
TCP Destination Ports
8194-8395 & 49152 - 655351
8194 — 8198
8194-8395 & 49152 - 655351
8209 — 8220
8194-8395 & 49152 - 655351
8290 — 8294
1 Denotes the Microsoft default ephemeral port range used by
Windows Vista and later Operating Systems.
Table 3. Bloomberg Private Network UDP and TCP Ports
8
2.5. Network Address Specifications – Enterprise and Feeds Products
Bloomberg offers a wide range of Enterprise solutions for business needs, which extend beyond
the Bloomberg Terminal. Specific Enterprise solutions are offered in seven business areas:
Content and Technology, Decision Support, Client Management, Liquidity and Trading, Risk and
Pricing, Operations, Regulations and Compliance. For more information on Bloomberg
Enterprise products please visit:
h ttps://www.bloomberg.com/professional/product/enterprise-gateway/
In addition, we also offer electronic trading solutions for equities (including futures and options),
fixed income, foreign exchange, commodities and many more.
For the list of products, please refer to the Bloomberg website. Alternatively, on the Terminal you
may visit BPS<GO> and browse the left-hand menu to understand more about the different
solutions we offer our customers.
Table 4. lists the IP ranges used for Bloomberg Enterprise / Feeds Product Servers connecting
via Bloomberg Leased/Dedicated lines. Customers must ensure they can route to these
networks and more specific subnets within these ranges.
Enterprise / Feed Bloomberg Network Address Ranges:
69.184.0.0/16
160.43.13.0/24
160.43.14.0/23
160.43.16.0/23
160.43.24.0/24
160.43.90.0/23
160.43.92.0/22
160.43.96.0/23
160.43.98.0/24
160.43.166.0/24
160.43.172.0/24
Table 4. Bloomberg Enterprise / Feed IP Ranges
2.6. Network Ports – Enterprise and Feeds Products
Feeds products that use FIX connectivity utilize TCP- 8228; SFTP utilize TCP- 22.
The Majority of Enterprise / Feeds products establish connectivity via the ports listed below in
Table 5.
TCP Destination Ports
8194-8198
8228
Table 5. Bloomberg Enterprise / Feed TCP Ports
** Some of the ports requires Bloomberg Server whitelisting
** For detailed source and destination IP/ports information, please contact the product representative or visit the
Bloomberg website for more info https://www.bloomberg.com/professional/
9
2.7. Bloomberg CPE Router
This section outlines customer network requirements to access the Bloomberg Terminal service via
our Network Access services and CPE router:
■ Ethernet network that supports IP
■ Minimum CAT5e UTP cable from the customer switch, router or firewall to the
Bloomberg Access Router for 1Gbps connections
■ Multimode fiber only for 10Gbps connections
■ IP address and subnet mask for the local Ethernet interface on the Bloomberg Access
Router. (Bloomberg will provide an IP address for customers without an existing IP
Address scheme).
One or more Bloomberg CPE Routers may be installed at each customer site. These
routers provide the following benefits:
■ Enhanced Data Delivery
The Bloomberg CPE router uses the IP network protocol and addressing scheme
along with a dynamic access list to receive and deliver data.
■ Seamless Integration
Installing a Bloomberg CPE router requires minimal configuration changes and will
not impact the customer network topology or performance. At least a CAT5e/6
UTP cable must be run from the customer switch, router or firewall to distribute
data to and via the Bloomberg services.
■ Security
The Bloomberg CPE Router communicates only to the private Bloomberg Network.
This is ensured through dynamic access lists on each Bloomberg CPE Router in
addition to fixed virtual circuit path definitions based on the underlying Data-Link
protocol TLS.
The Bloomberg CPE router may reside outside LAN firewalls to further ensure LAN integrity.
The Bloomberg Terminal Software utilizes both UDP and TCP connections (see Table 3.
Bloomberg Private Network UDP and TCP Ports) and contains various components and
applications such as Bloomberg API, Tradebook, FX and multimedia that utilize multiple ports.
In the event of a failure, an alternate path is established on the host end to transport Bloomberg
data. For locations with multiple Bloomberg CPE Routers and redundant circuits, Bloomberg
supports BGP, HSRP, VRRP and static routes for redundancy, provided there is a crosslink
connection between the two devices. In a split site scenario where there is no crosslink between
the two Bloomberg routers, Bloomberg will only support BGP for failover.
10
3. Internet and BRIN (Bloomberg over Reliable Internet)
3.1. Network Address Specifications
For Internet and BRIN connections, the customer’s PC must have Internet connectivity
and the ability to resolve DNS names in the following domains:
*.bloomberg.net
*.bloomberg.com
*.blpprofessional.com
*.btogo.com
Table 6. Bloomberg Domains
■ For Internet connections, the customer PC must be able to connect to the following
Bloomberg subnets. (See Table 7. Internet and BRIN IP Ranges).
■ BRIN (Bloomberg over Reliable Internet). Bloomberg utilizes various 3
rd
party Internet
presence providers to improve the Internet connectivity experience and reliability for the
Terminal. The customer PC must be able to connect to ANY IP address via Bloomberg specified
ports. (See Table 8. Bloomberg Internet UDP and TCP Ports). Customers must also ensure they
can route to these networks and more specific subnets within these ranges:
Internet / BRIN Bloomberg Network Address Ranges:
69.187.16.0/20
69.187.32.0/19
69.187.72.0/21
69.191.176.0/20
69.191.192.0/18
103.251.205.0/24
160.43.250.0/24
160.43.251.0/24
160.43.252.0/24
160.43.253.0/24
205.216.112.0/24
206.156.53.0/24
208.22.56.0/24
208.22.57.0/24
Table 7. Internet and BRIN IP Ranges
3.2. Network Ports
The customer PC must be able to connect to the following Bloomberg ports:
UDP Destination Ports
48129-48137
TCP Destination Ports
8194-8198
8209-8220, 8228
8290-8294
Table 8. Bloomberg Internet UDP and TCP Ports
11
4. Bloomberg DCA Add-In
4.1. Bloomberg DCA Network Address Specifications
Bloomberg DCA is an Excel add-in used by clients to publish their own data to the Bloomberg
Terminal. The add-in requires one pair of the following IPs to be whitelisted on the client's firewall
to ensure data transmission. Please confirm with your Contributions Account Manager which pair
of IPs will be used for your firm. No whitelisting of client IPs is required on the Bloomberg side
for this application.
TCP Destination Port
11011
Leased Line Network
Addresses
Internet Network Addresses
EMEA:
69.184.36.14/32
69.184.37.18/32
Internet:
69.191.193.148/32
69.191.229.73/32
AMER:
69.184.4.23/32
69.184.5.15/32
Internet2:
69.191.193.174/32
69.191.229.119/32
APAC:
69.184.68.18/32
69.184.69.28/32
Internet3:
69.191.193.175/32
69.191.229.120/32
Table 9. Bloomberg DCA Port and Network Addresses
12
5. SFTP Connectivity
5.1. Bloomberg SFTP Connectivity Overview
BB-SFTP enables a set of Bloomberg-provided SFTP accounts to be used for transferring files.
Access to BB-SFTP is restricted to SFTP Users. SFTP Users may use the Bloomberg Network
access or the Internet to access BB-SFTP.
Access to BB-SFTP is only permitted from an IP address previously provided by SFTP Users to
Bloomberg; that IP address will be used to create an account-specific IP address whitelist. SFTP
Users are responsible for configuration changes within their own environments and for ensuring
that they make any necessary changes to their firewalls to enable BB-SFTP access.
For further details on this topic and a FULL connectivity breakdown; Including DNS and IP
details, please see the ‘Help’ section of the Enterprise Console (Login Required).
https://console.bloomberg.com
For Internet connectivity, customers are advised to use the DNS sftp.bloomberg.com or
sftp.blpprofessional.com (China), not use IP addresses directly.
Customers connecting via Bloomberg Network Access services should connect to the Virtual IP
in the region they are connecting from. Customers not directly targeting a specific site should
connect to the Virtual IP listed in our SFTP documentation. If the customer relies on site specific
file locations, they should target the server IP of that data center. Customers choosing to target
server IPs in either of our Data Centers directly over Bloomberg Network Access services need
to handle failover themselves. Automatic failover will only be handled if clients target the VIP.
5.2. BVault SFTP
URL
Addresses
Port
Region
ftpcom.bloomberg.com
69.191.251.78
69.191.212.14
30206
Global
Table 10. BVault SFTP
13
6. Additional Network Requirements
6.1. Requirements to Access Content from Web Links on the Terminal
The Bloomberg Terminal service provides links to selected webpages and this functionality will
utilize the default browser on the customer’s PC or otherwise within the customer’s corporate
environment. The customers locally installed browsers and corporate proxies will govern service
and display of the web content. The computer must, at minimum have:
● Internet Access
● HTTP Port 80 must be allowed to access any proxy server or firewall
● HTTPS Port 443 must be allowed to access any proxy server or firewall
Bloomberg news articles from Terminal functions such as NH NS1<GO> which load web content
inside the Bloomberg application, will use Bloomberg’s browser engine implemented by
blpwebview.exe and blpbrowser.exe. Bloomberg’s browser engine technology is based on a
subset of Google's Chromium project web browser. Each function that requires the display of
web content may create one or more instances of blpwebview.exe and blpbrowser.exe.
Bloomberg’s recommendations for successful use of “In Terminal web content” are as follows:
■ Customers should configure Anti-Virus / Security software not to interfere with
launching and execution of Bloomberg’s blpwebview.exe and blpbrowser.exe process.
■ TCP/IP Communication from blpwebview.exe and blpbrowser.exe to external
networks should be permitted on the firewall or security software, similar to the policy for
the default desktop web browser.
■ Customers should permit a user agent similar to Google Chrome desktop browser to
send HTTP requests from clients’ PCs. If this is restricted, please contact Bloomberg
support teams for further assistance.
14
6.2. Network requirements for ROOM.
ROOM <GO> launches the Bloomberg Room web application, which allows you to hold voice
and video conferences and share your screen with other Bloomberg users. Bloomberg Room is
integrated with the Bloomberg Terminal, so you can start a new conference from IB with just one
click.
Customer’s PC must have the ability to resolve the DNS names below as well as the ability to
connect to the following IPs and ports.
Web/Https
URLs
IP Addresses
*.blproom.com
75.2.22.94
15.197.247.93
99.83.148.107
3.33.219.126
Media
UDP destination port
IP Address Ranges
10000
3.141.237.0/25
3.251.110.0/25
35.72.225.128/25
35.85.225.128/25
13.37.1.128/25
13.214.15.128/25
6.3. Firewalls
Most customer networks with an outside connection to the Internet will have some form of
security in place, such as a firewall. A firewall may be installed either locally on the customer PC,
on the network, or both. In order for customers to access the Bloomberg Terminal with full
functionality, their firewall must be set to assume all incoming and outgoing activity from the
Bloomberg services are safe. The customer’s firewall must allow connectivity on all the ports and
addresses provided in the relevant sections of this document.
Should a customer experience any connection loss or slowness to and from the Bloomberg
services, the customer firewall will be considered as a likely factor and should be verified in the
first instance.
Bloomberg Terminal's TLS connections are secured using both Client and Server
Certificates. Bloomberg servers do not allow TLS connections from any device which does not
have a valid Client Certificate. SSL interception is not supported.
For Terminal Connect product, local firewall must allow listening on localhost port range:
Localhost port range
9000-9020
15
6.4. Virtual Private Network (VPN)
Traveling Bloomberg Anywhere users can remotely access the Bloomberg Terminal service on
their usual desktop PC by remoting into their corporate network using an Internet connection. To
configure the application software to connect over a VPN connection, type CONN <Go> within
the Bloomberg application to open the Advanced Connection Options. Under the Settings tab,
check the Use any local IP address box. The VPN server must be configured to forward the
network traffic to the Bloomberg routers on the private network. In some cases, the VPN
connection must also pass through a proxy server; therefore, the proxy settings need to be
configured as well. The details for this are given in section 6.5.
6.5. Socks5 Proxy Server - Bloomberg Terminal Services
For customers using a SOCKS5 Proxy Server, the Bloomberg Terminal services will
communicate with the proxy server and the proxy server will in turn communicate to the
Bloomberg servers.
Figure 2. Client to Proxy Server Communication Example
The Bloomberg Terminal will send TCP communication by default to port 1080 on the SOCKS5
Proxy Server. Upon initial connection, the Terminal will select the source port for this connection.
This destination port 1080 may be different if the proxy server administrator has configured the
proxy server to run on a different port. The source ports will be the same as the standard
Bloomberg source ports (See Table 3. Bloomberg Private Network UDP and TCP Ports and
Table 8. Bloomberg Internet UDP and TCP Ports).
In order for the Bloomberg software to connect with the proxy server, type CONN<GO> within
the Bloomberg application to open the “Advanced Connection Options”. Under the Settings
tab, there are two sets of SOCKS5 Proxy Server settings, one for connections using Bloomberg
Network Access services and one for connections using the Internet.
16
To allow API connectivity, ensure that “API settings follow Terminal settings” in the Advanced
Connection Options, CONN<GO> is checked. SOCKS 5 Proxy settings can be customized for
BBComm in the BBComm Configuration tool. This can be accessed by clicking; Start – Programs
– Bloomberg – BBComm Configuration to open the configuration window. Click the SOCKS5
button and enter the appropriate DNS or IP addresses.
The communication between the SOCKS5 server and Bloomberg is the same as defined in this
document for Bloomberg Network Access services and Internet connectivity for the relevant
Source and Destination Ports sections. The Source ports used however, will be defined and
limited by the server administrator.
17
7. Appendix
7.1. Connectivity Diagrams
S ingle Customer Site – Single CPE
Figure 3. Single Site – Single CPE Network Diagram
18
S ingle Customer Site – Dual CPE
Figure 4. Single Site – Dual CPE Network Diagram
19
Dual Customer Site – Single CPE
Figure 5. Dual Site - Single CPE Network Diagram
20
Dual Customer Site – Dual CPE
Figure 6. Dual Site – Dual CPE Network Diagram
21
Connectivity via Internet
Figure 7. Connectivity via Internet Network Diagram
