This document discusses two options for connecting a bank to the internet: single-homing and multi-homing. Single-homing involves connecting to a single internet service provider (ISP) and is cheaper and easier to set up but offers less reliability. Multi-homing connects to multiple ISPs and offers better availability, reliability, and performance through load balancing, but requires more networking skills and expertise. The document recommends most banks start with single-homing and consider upgrading to multi-homing if internet uptime is critical to their operations.

1. Issue Date:
Revision:
Connecting your Bank to
the Internet
Strategies and implications
26 June 2014
1.0
Sanjaya
Deputy Director General
sanjaya@apnic.net

2. Overview
• Why connect to the Internet?
• How the Internet works
• 2 different options to connect
• Comparing the advantages and challenges
• Conclusion

3. Why connect?
• As an information/service producer
– Bank website
– Internet banking service
– Online promotions through e-mail, social media etc.
• As an information/service consumer
– News, research and other information source for Bank’s staff
• At the headquarter
• At the branch offices
– Online data source for transaction processing, trend analysis etc.
• Stock market data
• Foreign exchange rates

4. How the Internet works
Internet

5. How the Internet works
mobile network
satellite/wireless network
copper/fibre network
Internet backbone

6. How the Internet works
202.150.8.132
202.150.8.99
202.178.112.1
202.178.120.15
AS11167
12.100.1.8
AS24478
AS17726
2401:A700:1::D1
2401:A700:F::E3
2401:3E00:DD::1
2401:3E00:EE::15A
Autonomous System Number (ASN)
IP Address (IPv4)
IP Address (IPv6)

7. How the Internet works
• 3d visualization of all the
networks worldwide that are
interconnected to form the
Internet, including ISPs, Internet
Exchange Points, Universities
and Organization networks
• Each dot represents an ASN
(Autonomous System Number)
• There are 47,000+ ASNs
currently active in the Internet
Source: peer1.com

8. How to connect: option 1
• Single-homing
– One Internet connection per site
• Headquarter
• Data Centre
• Branches
– Use IP addresses from ISP
202.178.112.1
2401:3E00:DD::1
AS24478

9. How to connect: option 2
• Multi-homing
– Multiple Internet connections to
different ISPs and/or exchange
points
– Use Bank’s own ASN and IP
addresses
202.178.112.1
2401:3E00:DD::1
AS52378

10. Comparison
• Single-homing
– Advantages
• Cheaper and easier to setup
• Only need to deal with one ISP
– Challenges
• Availability & reliability
• Performance
• Limited availability of IP address
from the ISP
• Multi-homing
– Advantages
• Better availability and reliability
• Load-balancing & traffic engineering
for improved performance
• Better network scalability
– Challenges
• Networking skill required

11. Conclusion
• Most organizations can start with single homing connection
as it is simple to set up
• Organizations that rely heavily on the Internet to run their
business should consider a multi-homing connection for
better availability, reliability and performance
– Will need to hire a network engineer or get help from a network
integration vendor
– Get their own ASN and IP addresses from APNIC

12. About APNIC
• APNIC (Asia Pacific
Network Information
Centre) is an open,
membership-based, not-
for-profit organization
providing Internet
addressing services to
the Asia Pacific
• We distribute
– ASN
– IPv4
– IPv6
• We operate in 56
economies in AP region

13. One of five Regional Internet
Registries

14. APNIC membership growth from the
Finance Industry
0
50
100
150
200
250
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
NoofMembers
Year
As of 17 June 2014

15. More info: www.apnic.net
www.facebook.com/APNIC
www.twitter.com/apnic
www.youtube.com/apnicmultimedia
www.flickr.com/apnic
www.weibo.com/APNICrir
Thank you!