# Daryll Swer > Networking Defined > Real-world networks, protocol clarity, and smarter solutions. --- ## Pages - [Network Consulting](https://www.daryllswer.com/network-consulting/): Independent, Expert-Driven Network Solutions — No Vendor Bias, Just Results Provides tailored network consulting for ISPs, Data Centres, and businesses... - [Category](https://www.daryllswer.com/category/) - [About](https://www.daryllswer.com/about/): I’ve always been fascinated by how networks actually work, the invisible systems that keep our world connected. That curiosity grew... - [AS149794](https://www.daryllswer.com/as149794/): This page exists solely to let folks like ISP peering portals of various CDNs know the following: - [Geofeed](https://www.daryllswer.com/geofeed/) - [Contact](https://www.daryllswer.com/contact/) - [Donation](https://www.daryllswer.com/donation/): If you’d like to support me, there are a few ways to do it. You can donate money through the... --- ## Posts - [How to bring data centre-like connectivity to your home with IPTTTH](https://www.daryllswer.com/how-to-bring-data-centre-like-connectivity-to-your-home-with-ipttth/): The operational and financial feasibility of MPLS-delivered IP Transit-To-The-Home (IPTTTH). - [How to configure routed IPv6 in Docker](https://www.daryllswer.com/how-to-configure-routed-ipv6-in-docker/): How to set up native routed IPv6 in Docker with routed mode. - [Let's talk about CGNAT and IPv6, yet again.](https://www.daryllswer.com/lets-talk-about-cgnat-and-ipv6-yet-again/): Yet another blog article on IPv4, NAT, CGNAT, Hairpinning and native IPv6. - [Out-of-Band Network Design for Service Provider Networks](https://www.daryllswer.com/out-of-band-network-design-for-service-provider-networks/): How to design OOB networks for ISPs, inspired by data centre networking. - [Drop Early, Drop Often: Raw vs Filter iptables packet filtering](https://www.daryllswer.com/drop-early-drop-often-raw-vs-filter-iptables-packet-filtering/): This article examines iptables' performance in filtering traffic at different processing stages within a Linux-based router. Tests were conducted comparing... - [IPv6 Router Advertisement: Why is it enabled by default on some network vendors?](https://www.daryllswer.com/ipv6-router-advertisement-why-is-it-enabled-by-default-on-some-network-vendors/): IPv6 Router Advertisement (RA) is a core component of SLAAC and DHCPv6, but it's not required for all situations. Some... - [BGPlay data misinterpretation led to BGP false alarm call on my number](https://www.daryllswer.com/bgplay-data-misinterpretation-led-to-bgp-false-alarm-call-on-my-number/): BGP false-alarm: What happened, and what can we learn from it? - [Behavioural differences of IPv6 subnet-router anycast address implementations](https://www.daryllswer.com/behavioural-differences-of-ipv6-subnet-router-anycast-address-implementations/): Finding inconsistencies in vendor implementations of IPv6 subnet-router anycast addressing. - [An Interesting Folk Tale Behind the Khasi Matrilineal System](https://www.daryllswer.com/an-interesting-folk-tale-behind-the-khasi-matrilineal-system/): A rarely known tale about the origins of the Khasi Matrilineal System. - [IPv6 Architecture and Subnetting Guide for Network Engineers and Operators](https://www.daryllswer.com/ipv6-architecture-and-subnetting-guide-for-network-engineers-and-operators/): An extensive article on IPv6 best practices, architecture, and implementation with real-life examples for engineers and operators. - [Navigating a BGP Zombie Outbreak on Juniper Routers](https://www.daryllswer.com/navigating-a-bgp-zombie-outbreak-on-juniper-routers/): A small article detailing an observation on BGP Zombies in Juniper platform. - [Interesting IPv6 observation on NDP (Neighbour Discovery Protocol)](https://www.daryllswer.com/interesting-ipv6-observation-on-ndp-neighbour-discovery-protocol/): Explore an interesting observation on the Neighbour Discovery Protocol (NDP) in IPv6, in regard to Neighbour Solicitation and Advertisements. - [How did I set up my own Autonomous System?](https://www.daryllswer.com/how-did-i-set-up-my-own-autonomous-system/): An article about setting up an Autonomous System (AS) from scratch. - [The Human Side of ISPs](https://www.daryllswer.com/the-human-side-of-isps/): An insight into ISP operations in South East Asia with a particular focus on India. - [Edge Router & BNG Optimisation Guide for ISPs](https://www.daryllswer.com/edge-router-bng-optimisation-guide-for-isps/): A best practices guide for engineers looking to improve network performance, security, and consistency using MikroTik for edge routers and... - [Multi-WAN setups with retail ISPs [Part 2 – Implementation (Using RouterOS)]](https://www.daryllswer.com/multi-wan-setups-with-retail-isps-part-2-implementation-using-routeros/): An article on deploying Multi-WAN using RouterOS. - [Multi-WAN setups with retail ISPs (Part 1 - Theory)](https://www.daryllswer.com/multi-wan-setups-with-retail-isps-part-1-theory/): An article on Multi-WAN setups using consumer-grade ISPs. - [Shortcomings of CGNAT and Potential Workarounds](https://www.daryllswer.com/shortcomings-of-cgnat-and-potential-work-arounds/): An article on the limitations of CGNAT and what can be done to work around them. --- ## Testimonials - [LIT Internet](https://www.daryllswer.com/testimonial/lit-internet/): Shout out to @DaryllSwer and his work below. It helped us create and build an RFC-compliant #network from the ground... - [WireStar Networks](https://www.daryllswer.com/testimonial/wirestar-inc/) --- # # Detailed Content ## Pages - Published: 2024-04-22 - Modified: 2025-05-03 - URL: https://www.daryllswer.com/network-consulting/ --- - Published: 2022-06-29 - Modified: 2026-05-30 - URL: https://www.daryllswer.com/about/ --- - Published: 2022-05-14 - Modified: 2025-02-25 - URL: https://www.daryllswer.com/as149794/ --- - Published: 2021-03-25 - Modified: 2024-09-28 - URL: https://www.daryllswer.com/contact/ --- - Published: 2021-03-25 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/donation/ --- --- ## Posts - Published: 2025-05-26 - Modified: 2025-08-29 - URL: https://www.daryllswer.com/how-to-bring-data-centre-like-connectivity-to-your-home-with-ipttth/ - Categories: Home Networking, ISP, Networking - Tags: BGP, IPv4, IPv6, MPLS, Networking The operational and financial feasibility of MPLS-delivered IP Transit-To-The-Home (IPTTTH). --- - Published: 2025-05-19 - Modified: 2025-05-19 - URL: https://www.daryllswer.com/how-to-configure-routed-ipv6-in-docker/ - Categories: Linux, Networking - Tags: Docker, IPv6, Networking How to set up native routed IPv6 in Docker with routed mode. --- - Published: 2025-04-22 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/lets-talk-about-cgnat-and-ipv6-yet-again/ - Categories: Networking - Tags: CGNAT, Double NAT, IPv4, IPv6, ISPs, Networking Yet another blog article on IPv4, NAT, CGNAT, Hairpinning and native IPv6. --- - Published: 2024-11-12 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/out-of-band-network-design-for-service-provider-networks/ - Categories: Architecture, DC/Enterprise, ISP, Networking - Tags: IPv6, ISPs, Management Plane, Networking, OOB How to design OOB networks for ISPs, inspired by data centre networking. --- - Published: 2024-01-27 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/drop-early-drop-often-raw-vs-filter-iptables-packet-filtering/ - Categories: Linux, Networking - Tags: iptables, Linux This article examines iptables' performance in filtering traffic at different processing stages within a Linux-based router. Tests were conducted comparing raw and filter tables' efficiency in handling dropped traffic. --- - Published: 2023-09-27 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/ipv6-router-advertisement-why-is-it-enabled-by-default-on-some-network-vendors/ - Categories: Networking - Tags: IPv6 IPv6 Router Advertisement (RA) is a core component of SLAAC and DHCPv6, but it's not required for all situations. Some network vendors enable RA by default, but you should disable it when not needed. --- - Published: 2023-09-21 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/bgplay-data-misinterpretation-led-to-bgp-false-alarm-call-on-my-number/ - Categories: ISP, Networking - Tags: BGP, ISPs, Networking, Routing BGP false-alarm: What happened, and what can we learn from it? --- - Published: 2023-08-28 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/behavioural-differences-of-ipv6-subnet-router-anycast-address-implementations/ - Categories: Networking - Tags: IPv6, Networking Finding inconsistencies in vendor implementations of IPv6 subnet-router anycast addressing. --- - Published: 2023-05-29 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/an-interesting-folk-tale-behind-the-khasi-matrilineal-system/ - Categories: Khasi Ethnicity, Non-Tech - Tags: Khasi, Non-Tech A rarely known tale about the origins of the Khasi Matrilineal System. --- - Published: 2023-04-04 - Modified: 2025-07-12 - URL: https://www.daryllswer.com/ipv6-architecture-and-subnetting-guide-for-network-engineers-and-operators/ - Categories: Architecture, Networking - Tags: Architecture, IP Planning, IPv6, ISPs, Networking, Planning, Subnetting An extensive article on IPv6 best practices, architecture, and implementation with real-life examples for engineers and operators. --- - Published: 2023-03-28 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/navigating-a-bgp-zombie-outbreak-on-juniper-routers/ - Categories: DC/Enterprise, Networking - Tags: BGP, Juniper, JunOS A small article detailing an observation on BGP Zombies in Juniper platform. --- - Published: 2022-12-16 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/interesting-ipv6-observation-on-ndp-neighbour-discovery-protocol/ - Categories: ISP, IXP, Networking - Tags: IPv6, IXPs, Networking Explore an interesting observation on the Neighbour Discovery Protocol (NDP) in IPv6, in regard to Neighbour Solicitation and Advertisements. --- - Published: 2022-07-01 - Modified: 2025-06-23 - URL: https://www.daryllswer.com/how-did-i-set-up-my-own-autonomous-system/ - Categories: Networking - Tags: AS, ASN, Autonomous System, Geofeed, GeoIP, IP Geolocation, Networking, RFC8805 An article about setting up an Autonomous System (AS) from scratch. --- - Published: 2021-08-28 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/the-human-side-of-isps/ - Categories: ISP, Networking - Tags: ISPs, Networking An insight into ISP operations in South East Asia with a particular focus on India. --- - Published: 2021-06-08 - Modified: 2026-05-30 - URL: https://www.daryllswer.com/edge-router-bng-optimisation-guide-for-isps/ - Categories: ISP, Networking - Tags: BNG, CGNAT, Core, Double NAT, Edge, IPv4, IPv6, ISPs, MikroTik, NAT, Networking, RFC4638 A best practices guide for engineers looking to improve network performance, security, and consistency using MikroTik for edge routers and BNG. --- - Published: 2021-03-29 - Modified: 2025-05-21 - URL: https://www.daryllswer.com/multi-wan-setups-with-retail-isps-part-2-implementation-using-routeros/ - Categories: Networking - Tags: Bandwidth, Bandwidth Aggregation, Load Balancing, MikroTik, Multi-WAN, Networking, RouterOS An article on deploying Multi-WAN using RouterOS. --- - Published: 2021-03-28 - Modified: 2025-06-23 - URL: https://www.daryllswer.com/multi-wan-setups-with-retail-isps-part-1-theory/ - Categories: Networking - Tags: Bandwidth, Bandwidth Aggregation, Load Balancing, Multi-WAN, Networking An article on Multi-WAN setups using consumer-grade ISPs. --- - Published: 2021-03-25 - Modified: 2025-09-28 - URL: https://www.daryllswer.com/shortcomings-of-cgnat-and-potential-work-arounds/ - Categories: Networking - Tags: CGNAT, Double NAT, IPv4, ISPs, NAT, Networking An article on the limitations of CGNAT and what can be done to work around them. --- --- ## Testimonials - Published: 2024-11-05 - Modified: 2024-11-05 - URL: https://www.daryllswer.com/testimonial/lit-internet/ --- ---