Re: Can P2P applications learn to play fair on networks?

2007-10-22 Thread Perry Lorier
Will P2P applications really never learn to play nicely on the network? So from an operations perspective, how should P2P protocols be designed? There appears that the current solution at the moment is for ISP's to put up barriers to P2P usage (like comcasts spoof'd RSTs), and thus P2P

Re: Access to the IPv4 net for IPv6-only systems, was: Re: WG Action: Conclusion of IP Version 6 (ipv6)

2007-10-02 Thread Perry Lorier
What has happened? Well, application protocols have evolved to accommodate NAT weirdness (e.g., SIP NAT discovery), and NATs have undergone incremental improvements, and almost no end-users care about NATs. As long as they can use the Google, BitTorrent and Skype, most moms and dads

Re: Extreme congestion (was Re: inter-domain link recovery)

2007-08-18 Thread Perry Lorier
We've been pitching the idea to bittorrent tracker authors to include a BGP feed and prioritize peers that are in the same ASN as the user himself, but they're having performance problems already so they're not so keen on adding complexity. If it could be solved better at the client level

Re: ICANN registrar supporting v6 glue?

2007-06-29 Thread Perry Lorier
One note here is that even though you can get glue into com/net/org using this method, there is no IPv6 glue for the root yet, as such even if you manage to get the IPv6 glue in, it won't accomplish much (except sending all IPv6 capable resolvers over IPv6 transport :) as all resolvers will

Re: Security gain from NAT (was: Re: Cool IPv6 Stuff)

2007-06-05 Thread Perry Lorier
The only ways into these machines would be if the NAT/PAT device were misconfigured, another machine on the secure network were compromised, or another gateway into the secure network was set up. Guess what? All of these things would defeat a stateful inspection firewall as well. I

Re: DHCPv6, was: Re: IPv6 Finally gets off the ground

2007-04-15 Thread Perry Lorier
When you can plug your computer in, and automatically (with no clicking) get an IPv6 address, Router Advertisements let you automatically configure as many IPv6 addresses as you feel like. have something tell you where your DNS assist servers, Microsoft had an old expired draft with

Re: Thoughts on increasing MTUs on the internet

2007-04-12 Thread Perry Lorier
Iljitsch van Beijnum wrote: Dear NANOGers, It irks me that today, the effective MTU of the internet is 1500 bytes, while more and more equipment can handle bigger packets. What do you guys think about a mechanism that allows hosts and routers on a subnet to automatically discover the MTU

Re: wifi for 600, alex

2007-01-23 Thread Perry Lorier
An observation I would make is that the number of mac addresses per person at the tech heavy meeting has climbed substantially over 1 (not to 2 yet) so it's not so much that everyone brings a laptop... it's that everyone brings a laptop, a pda and a phone, or two laptops. In a year or two

Re: Network end users to pull down 2 gigabytes a day, continuously?

2007-01-21 Thread Perry Lorier
Good thinking. Where do I sign? Regarding your first point, it's really surprising that existing P2P applications don't include topology awareness. After all, the underlying TCP already has mechanisms to perceive the relative nearness of a network entity - counting hops or round-trip latency.

Re: 6to4 gateways

2005-10-17 Thread Perry Lorier
This seems like a problem that could be solved in the style of the CIDR report. Regular weekly reports of v6 relays and locations as seen from various major ASes. From my tr website I can see a few 6to4 gateways: http://tr.meta.net.nz/output/2005-10-17_22:41_192.88.99.1.png (beware, the