Re: It's the end of the world as we know it -- REM

2013-04-30 Thread John Curran
On Apr 30, 2013, at 1:46 AM, Jimmy Hess mysi...@gmail.com wrote: On 4/29/13, John Curran jcur...@arin.net wrote: On Apr 29, 2013, at 2:46 PM, Lee Howard l...@asgard.org wrote: On 4/29/13 1:03 AM, Jérôme Nicolle jer...@ceriz.fr wrote: specified (based on being singly-homed or multi-homed.)

Office 365 broken on ipv6

2013-04-30 Thread Nick Hilliard
https://outlook.office365.com does not work on ipv6; looks like this has been broken for some while. Can someone from Microsoft please fix? crumpet:/Users/nick% telnet -6 outlook.office365.com 443 Trying 2a01:111:f400:1000::9... telnet: connect to address 2a01:111:f400:1000::9: Connection

Re: Office 365 broken on ipv6

2013-04-30 Thread Sasa Ristic
from Europe, using ipv6, it seems to be working: --- zarko.ke...@rnids.rsmaster:~$ telnet -6 outlook.office365.com 443 Trying 2a01:111:f400:800::6... Connected to ipv6.exchangelabs.com. Escape character is '^]'. --- On Tue, Apr 30, 2013 at 12:33 PM, Nick Hilliard n...@foobar.org wrote:

Re: Office 365 broken on ipv6

2013-04-30 Thread Aftab Siddiqui
Quite Interesting... from Europe, using ipv6, it seems to be working: --- zarko.ke...@rnids.rsmaster:~$ telnet -6 outlook.office365.com 443 Trying 2a01:111:f400:800::6... Connected to ipv6.exchangelabs.com. Escape character is '^]'. --- The IP address you have mentioned is working fine.

Re: Office 365 broken on ipv6

2013-04-30 Thread Sasa Ristic
yes, you are correct... resolved at my local dns: master:~$ host outlook.office365.com outlook.office365.com is an alias for outlook.office365.com.glbdns.microsoft.com. outlook.office365.com.glbdns.microsoft.com is an alias for outlook-latam.office365.com. outlook-latam.office365.com has IPv6

Re: Office 365 broken on ipv6

2013-04-30 Thread Jared Mauch
FYI: Here's what I'm seeing: puck:~$ curl -v https://outlook.office365.com/ * About to connect() to outlook.office365.com port 443 (#0) * Trying 2a01:111:f400:400::2... * Connection refused * Trying 2a01:111:f400:2c16::2... * Connection refused * Trying 2a01:111:f400:2c2a::12... *

Re: Office 365 broken on ipv6

2013-04-30 Thread Charlie Allom
On Tue, Apr 30, 2013 at 11:33:41AM +0100, Nick Hilliard n...@foobar.org wrote: https://outlook.office365.com does not work on ipv6; looks like this has been broken for some while. Not one host in the RING says it is up: https://spodder.com/p/ByYYcAomOxawsZRPme74X9pG via

Tier1 blackholing policy?

2013-04-30 Thread Thomas Schmid
Greetings, I know Tier1s are blackholing traffic all the time :) (de-peering, congestion etc.) but did it became a new role for Tier1s to go from transit provider to transit blocker? We received recently customer complaints stating they can't reach certain websites. Investigation showed that

Re: Office 365 broken on ipv6

2013-04-30 Thread Jima
On Tue, April 30, 2013 10:33 am, Nick Hilliard wrote: https://outlook.office365.com does not work on ipv6; looks like this has been broken for some while. Can someone from Microsoft please fix? crumpet:/Users/nick% telnet -6 outlook.office365.com 443 Trying 2a01:111:f400:1000::9... telnet:

Re: Office 365 broken on ipv6

2013-04-30 Thread Hibler, Florian
Hi, seems at least one box got fixed: dyn-10-0-2-50:~ local_fhibler$ telnet -6 outlook.office365.com 443 Trying 2a01:111:f400:400::6... telnet: connect to address 2a01:111:f400:400::6: Connection refused Trying 2a01:111:f400:83e::6... telnet: connect to address 2a01:111:f400:83e::6: Connection

RE: Office 365 broken on ipv6

2013-04-30 Thread Christopher Palmer
This is being esclated. -Original Message- From: Hibler, Florian [mailto:florian.hib...@kaiaglobal.com] Sent: Tuesday, April 30, 2013 4:38 AM To: nanog@nanog.org Subject: Re: Office 365 broken on ipv6 Hi, seems at least one box got fixed: dyn-10-0-2-50:~ local_fhibler$ telnet -6

Re: Tier1 blackholing policy?

2013-04-30 Thread ML
On 4/30/2013 10:31 AM, Thomas Schmid wrote: Greetings, I know Tier1s are blackholing traffic all the time :) (de-peering, congestion etc.) but did it became a new role for Tier1s to go from transit provider to transit blocker? We received recently customer complaints stating they can't

Re: Tier1 blackholing policy?

2013-04-30 Thread Chris Boyd
On Tue, 2013-04-30 at 10:59 -0400, ML wrote: 1) Do nothing - They're supposed deliver any and all bits (Disregarding a DoS or similiar situation which impedes said network) 2) Prefix filter - Don't be a party (at least in one direction) to the bad actors traffic. 3 - Deliver all packets

Re: Tier1 blackholing policy?

2013-04-30 Thread Jared Mauch
Sounds like a no win situation. Either you let the bad guys do things or get complaints you blocked the bad guys. Jared Mauch On Apr 30, 2013, at 11:07 AM, Chris Boyd cb...@gizmopartners.com wrote: On Tue, 2013-04-30 at 10:59 -0400, ML wrote: 1) Do nothing - They're supposed deliver any and

Re: Tier1 blackholing policy?

2013-04-30 Thread Patrick W. Gilmore
On Apr 30, 2013, at 11:07 , Chris Boyd cb...@gizmopartners.com wrote: On Tue, 2013-04-30 at 10:59 -0400, ML wrote: 1) Do nothing - They're supposed deliver any and all bits (Disregarding a DoS or similiar situation which impedes said network) 2) Prefix filter - Don't be a party (at least in

Re: Tier1 blackholing policy?

2013-04-30 Thread Jon Lewis
On Tue, 30 Apr 2013, Thomas Schmid wrote: I know Tier1s are blackholing traffic all the time :) (de-peering, congestion etc.) but did it became a new role for Tier1s to go from transit provider to transit blocker? We received recently customer complaints stating they can't reach certain

Re: Tier1 blackholing policy?

2013-04-30 Thread Dobbins, Roland
On Apr 30, 2013, at 10:07 PM, Chris Boyd wrote: 3 - Deliver all packets unless I've signed up for an enhanced security offering? Even if said packets from an obviously compromised server on a high-speed link are attack packets causing problems for the ISP itself as well as for its

Re: Tier1 blackholing policy?

2013-04-30 Thread Tassos Chatzithomaoglou
I think blocking phishing sites vs blocking ddos require a different approach. -- Tassos Jared Mauch wrote on 30/04/2013 18:11: Sounds like a no win situation. Either you let the bad guys do things or get complaints you blocked the bad guys. Jared Mauch On Apr 30, 2013, at 11:07 AM,

Re: Tier1 blackholing policy?

2013-04-30 Thread Thomas Schmid
On 30.04.2013 17:07, Chris Boyd wrote: On Tue, 2013-04-30 at 10:59 -0400, ML wrote: 1) Do nothing - They're supposed deliver any and all bits (Disregarding a DoS or similiar situation which impedes said network) 2) Prefix filter - Don't be a party (at least in one direction) to the bad actors

Re: Office 365 broken on ipv6

2013-04-30 Thread Bernhard Schmidt
Nick Hilliard n...@foobar.org wrote: https://outlook.office365.com does not work on ipv6; looks like this has been broken for some while. Can someone from Microsoft please fix? crumpet:/Users/nick% telnet -6 outlook.office365.com 443 Trying 2a01:111:f400:1000::9... telnet: connect to

Re: Tier1 blackholing policy?

2013-04-30 Thread Patrick W. Gilmore
On Apr 30, 2013, at 11:23 , Thomas Schmid sch...@dfn.de wrote: On 30.04.2013 17:07, Chris Boyd wrote: On Tue, 2013-04-30 at 10:59 -0400, ML wrote: 1) Do nothing - They're supposed deliver any and all bits (Disregarding a DoS or similiar situation which impedes said network) 2) Prefix filter

Re: Tier1 blackholing policy?

2013-04-30 Thread joel jaeggli
On 4/30/13 8:23 AM, Thomas Schmid wrote: On 30.04.2013 17:07, Chris Boyd wrote: On Tue, 2013-04-30 at 10:59 -0400, ML wrote: 1) Do nothing - They're supposed deliver any and all bits (Disregarding a DoS or similiar situation which impedes said network) 2) Prefix filter - Don't be a party (at

Re: Tier1 blackholing policy?

2013-04-30 Thread Thomas Schmid
Am 30.04.2013 17:53, schrieb Patrick W. Gilmore: Core? Seriously? Which of these statements are true: A) Is it impossible for an end user or business (i.e. non-ISP) to get a direct connection to a Tier 1 (whatever the hell that means) provider. B) Most traffic on the Internet traverses Tier 1s

Re: Tier1 blackholing policy?

2013-04-30 Thread Patrick W. Gilmore
Composed on a virtual keyboard, please forgive typos. On Apr 30, 2013, at 12:32, Thomas Schmid sch...@dfn.de wrote: Am 30.04.2013 17:53, schrieb Patrick W. Gilmore: Core? Seriously? Which of these statements are true: A) Is it impossible for an end user or business (i.e. non-ISP) to get a

Re: Tier1 blackholing policy?

2013-04-30 Thread Darius Jahandarie
On Tue, Apr 30, 2013 at 11:22 AM, Tassos Chatzithomaoglou ach...@forthnetgroup.gr wrote: I think blocking phishing sites vs blocking ddos require a different approach. I think I agree with this, and I think it can help draw a useful line. Large DDoS attacks can and do directly affect the

Re: Tier1 blackholing policy?

2013-04-30 Thread Jared Mauch
On Apr 30, 2013, at 12:43 PM, Darius Jahandarie djahanda...@gmail.com wrote: I think I agree with this, and I think it can help draw a useful line. Large DDoS attacks can and do directly affect the service that the tier 1 is providing to its customers (namely, moving their bits), so

Re: Tier1 blackholing policy?

2013-04-30 Thread Thomas Schmid
Am 30.04.2013 18:41, schrieb Patrick W. Gilmore: Composed on a virtual keyboard, please forgive typos. On Apr 30, 2013, at 12:32, Thomas Schmid sch...@dfn.de wrote: Am 30.04.2013 17:53, schrieb Patrick W. Gilmore: Core? Seriously? Which of these statements are true: A) Is it impossible for

Andros Island Connectivity?

2013-04-30 Thread Aaron C. de Bruyn
I just had a client drop an interesting requirement on me. They are on Andros Island (Bahamas) for about a year. I'm working on getting an exact address from the adminisphere above me, but all I've been told so far is they are 'near the naval base'. They just called and said We need internet

Re: Andros Island Connectivity?

2013-04-30 Thread Mike Lyon
Aaron, Cross-posting this over to the WISPA list to see if there are any Wireless ISPs over there that can help you. -Mike On Tue, Apr 30, 2013 at 1:28 PM, Aaron C. de Bruyn aa...@heyaaron.comwrote: I just had a client drop an interesting requirement on me. They are on Andros Island

Re: Andros Island Connectivity?

2013-04-30 Thread TR Shaw
Aaron are they supporting the range? If so there are options. On Apr 30, 2013, at 4:28 PM, Aaron C. de Bruyn wrote: I just had a client drop an interesting requirement on me. They are on Andros Island (Bahamas) for about a year. I'm working on getting an exact address from the adminisphere

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
I suggested VSAT. Probably the quickest and cheapest. Sent from my T-Mobile 4G LTE Device Original message From: Mike Lyon mike.l...@gmail.com Date: 04/30/2013 1:35 PM (GMT-08:00) To: Aaron C. de Bruyn aa...@heyaaron.com,memb...@wispa.org Cc: NANOG mailing list

Re: Tier1 blackholing policy?

2013-04-30 Thread William Herrin
On Tue, Apr 30, 2013 at 10:31 AM, Thomas Schmid sch...@dfn.de wrote: We received recently customer complaints stating they can't reach certain websites. Investigation showed that the sites were not reachable via Tier1-T, but fine via Tier1-L. I contacted Tier1-T and the answer was something

Re: Andros Island Connectivity?

2013-04-30 Thread Mike Hale
It's the quickest but certainly not the cheapest. On Tue, Apr 30, 2013 at 1:56 PM, Warren Bailey wbai...@satelliteintelligencegroup.com wrote: I suggested VSAT. Probably the quickest and cheapest. Sent from my T-Mobile 4G LTE Device Original message From: Mike Lyon

Re: Tier1 blackholing policy?

2013-04-30 Thread Jared Mauch
On Apr 30, 2013, at 2:50 PM, bmann...@vacation.karoshi.com wrote: Phone? You mean like Jitsi or Skype? Fax? I'd like to see some numbers to back your assertion of Typical restoration times of days. my vendors deliver software fixes for BGP doesn't work in

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
Says.. Who? Sent from my T-Mobile 4G LTE Device Original message From: Mike Hale eyeronic.des...@gmail.com Date: 04/30/2013 2:19 PM (GMT-08:00) To: Warren Bailey wbai...@satelliteintelligencegroup.com Cc: Mike Lyon mike.l...@gmail.com,Aaron C. de Bruyn

Re: Andros Island Connectivity?

2013-04-30 Thread Mike Hale
Yeah, how many thousands is it per meg of space segment? On Tue, Apr 30, 2013 at 2:20 PM, Warren Bailey wbai...@satelliteintelligencegroup.com wrote: Says.. Who? Sent from my T-Mobile 4G LTE Device Original message From: Mike Hale eyeronic.des...@gmail.com Date:

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
Not that I'll argue it isn't costly, but how else can you rail in up to 100mbps in an afternoon..? I would imagine this type of inquiry comes in after it has been established that there is little to no connectivity. Sent from my T-Mobile 4G LTE Device Original message

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
Depends.. Space segment runs from 1300 a mhz for inclined all the way to 6k a month a mhz for hard to get weird stuff. We oversub to make the economics work often. Sent from my T-Mobile 4G LTE Device Original message From: Mike Hale eyeronic.des...@gmail.com Date:

Re: Andros Island Connectivity?

2013-04-30 Thread Mike Hale
Bingo. And you're absolutely right in that setting it up can be really fast. But cheap? Not for a quality connection. On Tue, Apr 30, 2013 at 2:23 PM, Warren Bailey wbai...@satelliteintelligencegroup.com wrote: Depends.. Space segment runs from 1300 a mhz for inclined all the way to 6k a

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
We can make it work usually. An Hd TV channel takes something like 3mhz now. Things have improved greatly in our industry. Not to say there isn't the occasional weird situation. But when you come in to a site and it's up within an hour you are usually elevated to rockstar status. It takes

Re: Andros Island Connectivity?

2013-04-30 Thread TR Shaw
Harris/CAPROCK, http://www.harriscaprock.com, provides VSAT worldwide to shipping, offshore platforms and remote islands. Additionally, Andros has quite a bit of undersea fiber going to it. The USAF Eastern Test Range and the Naval base there was the forcing function. The range contractor,

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
Or you could just use my networks? Sent from my T-Mobile 4G LTE Device Original message From: TR Shaw ts...@oitc.com Date: 04/30/2013 2:45 PM (GMT-08:00) To: Warren Bailey wbai...@satelliteintelligencegroup.com Cc: Mike Hale eyeronic.des...@gmail.com,Aaron C. de Bruyn

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
Now we are partying! Let me get on my computer so I can respond. Sent from my T-Mobile 4G LTE Device Original message From: Ryan Wilkins r...@deadfrog.net Date: 04/30/2013 3:16 PM (GMT-08:00) To: Mike Hale eyeronic.des...@gmail.com Cc: Warren Bailey

Network Engineering Stack Exchange site in Area51 (fwd)

2013-04-30 Thread Simon Lyall
The proposal currently needs just 13 more committers with 200+ SE points on any site... http://area51.stackexchange.com/proposals/52519/network-engineering The SE site proposal for 'network engineering' is so close to going into Beta. It's up to 441 committers, and is currently 7th overall,

Mitigating DNS amplification attacks

2013-04-30 Thread Thomas St-Pierre
Hi! I was wondering if anyone had any experience with dealing with open resolvers as a web hoster? We currently have some 40,000 ip's that respond to DNS in our AS, the majority of which are not open but do reply with a referral to the root zones. We've been sending emails to our clients but

Re: Mitigating DNS amplification attacks

2013-04-30 Thread Dobbins, Roland
On May 1, 2013, at 6:43 AM, Thomas St-Pierre wrote: We've been sending emails to our clients but as the servers are not managed by us, there's not much we can do at that level. Sure, there is - shut them down if they don't comply. Most ISPs have AUP verbiage which would apply to a

Re: Mitigating DNS amplification attacks

2013-04-30 Thread Thomas St-Pierre
Hi! On 13-04-30 7:57 PM, Dobbins, Roland rdobb...@arbor.net wrote: On May 1, 2013, at 6:43 AM, Thomas St-Pierre wrote: We've been sending emails to our clients but as the servers are not managed by us, there's not much we can do at that level. Sure, there is - shut them down if they don't

Re: Mitigating DNS amplification attacks

2013-04-30 Thread Damian Menscher
On Tue, Apr 30, 2013 at 5:28 PM, Thomas St-Pierre tstpie...@iweb.comwrote: On 13-04-30 7:57 PM, Dobbins, Roland rdobb...@arbor.net wrote: On May 1, 2013, at 6:43 AM, Thomas St-Pierre wrote: We've been sending emails to our clients but as the servers are not managed by us, there's not much

Re: Mitigating DNS amplification attacks

2013-04-30 Thread Jared Mauch
Please look at something like rate limiting. Please look at preventing these spoofed packets from entering your network and report the issue. Please provide advice and insights as well as directing customers to the openresolverproject.org website. We want to close these down, if you need an

Re: Mitigating DNS amplification attacks

2013-04-30 Thread Thomas St-Pierre
Hi Damian! We offer a DNS hosted solution, most people still use their own servers though. (especially those with control panels such as cPanel or plesk, where it's built-in). As for BCP38, I would love to stop the spoofed packets, however with them coming from our upstreams, (Level3, Cogent,

Re: Mitigating DNS amplification attacks

2013-04-30 Thread Dobbins, Roland
On May 1, 2013, at 7:42 AM, Thomas St-Pierre wrote: As for BCP38, I would love to stop the spoofed packets, however with them coming from our upstreams, (Level3, Cogent, Tata, etc) I don't see how we can. Contact them on a case-by-case basis to report the spoofed traffic used to stimulate

Re: Andros Island Connectivity?

2013-04-30 Thread Rob Seastrom
Protracted discussion (and promotion) has glossed over one key point: None of the people on-site are technical, and all their data is accessed via RDP on a server in the United States. They will not be happy with VSAT latency (typically 700ms though physics says you can never do better than

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
BuzKil!!! Actually, we use some TCP ninja techniques to make Citrix/RDP work. Basically, we ack the packets on both sides to prevent the delay from occurring. It's kind of like acceleration, except there aren't really any devices in between the session. There is a single box at the

Re: Andros Island Connectivity?

2013-04-30 Thread Ryan Wilkins
I was going to mention this but failed to do so. At the very least, do some testing first to make sure that the latency isn't going to introduce unforeseen issues. Case in point, the Chicago satellite-based network that I manage is sometimes used for Police / Fire / EMS dispatching. The

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
http://www.xiplink.com is who we work with (and sell). Don't mean to advertise on NANOG, more of an FYI and place for those who care to learn something. I hate the fact that satellite is looked at like a white unicorn, it's a pretty cool solution that will perform day in and out for as long as you

Re: Andros Island Connectivity?

2013-04-30 Thread Ryan Wilkins
I've used them before on SCPC links. I discovered on a boat one time that the XipLink unit we were using wasn't exactly designed to handle vibrations from engines nor the constant pounding of a hull on water when in the ocean with large swells. Back then the boxes were 1U rackmount PCs

Re: Andros Island Connectivity?

2013-04-30 Thread Joel M Snyder
Protracted discussion (and promotion) has glossed over one key point: None of the people on-site are technical, and all their data is accessed via RDP on a server in the United States. They will not be happy with VSAT latency (typically 700ms though physics says you can never do better than

Re: Andros Island Connectivity?

2013-04-30 Thread Rob Seastrom
Joel M Snyder joel.sny...@opus1.com writes: Actually, Citrix (in particular) works quite well over satellite latencies. The network project I'm working on right now is wrapping up an app rollout to about 100 countries, many of which we can only reach via VSAT. Testing showed that Citrix

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
Put that in your pipe and smoke it, Seastrom! ;) On 4/30/13 7:02 PM, Joel M Snyder j...@opus1.com wrote: Protracted discussion (and promotion) has glossed over one key point: None of the people on-site are technical, and all their data is accessed via RDP on a server in the United States.

Re: It's the end of the world as we know it -- REM

2013-04-30 Thread Jimmy Hess
On Tuesday, April 30, 2013, John Curran wrote: On Apr 30, 2013, at 1:46 AM, Jimmy Hess mysi...@gmail.com javascript:; wrote: On 4/29/13, John Curran jcur...@arin.net javascript:; wrote: On Apr 29, 2013, at 2:46 PM, Lee Howard l...@asgard.org javascript:; wrote: On 4/29/13 1:03 AM,

Re: Andros Island Connectivity?

2013-04-30 Thread Rob Seastrom
Good 'ol Warren, sure knows how to make friends and influence people. -r Warren Bailey wbai...@satelliteintelligencegroup.com writes: Put that in your pipe and smoke it, Seastrom! ;) On 4/30/13 7:02 PM, Joel M Snyder j...@opus1.com wrote: Protracted discussion (and promotion) has

Re: Andros Island Connectivity?

2013-04-30 Thread Warren Bailey
The chicks certainly know my name.. Sent from my T-Mobile 4G LTE Device Original message From: Rob Seastrom r...@seastrom.com Date: 04/30/2013 8:00 PM (GMT-08:00) To: Warren Bailey wbai...@satelliteintelligencegroup.com Cc: Joel M Snyder

Re: It's the end of the world as we know it -- REM

2013-04-30 Thread John Curran
On Apr 30, 2013, at 10:56 PM, Jimmy Hess mysi...@gmail.commailto:mysi...@gmail.com wrote: On Tuesday, April 30, 2013, John Curran wrote: On Apr 30, 2013, at 1:46 AM, Jimmy Hess mysi...@gmail.comjavascript:; wrote: On 4/29/13, John Curran jcur...@arin.netjavascript:; wrote: On Apr 29, 2013, at

Re: It's the end of the world as we know it -- REM

2013-04-30 Thread Owen DeLong
This says demonstrate the need for resources. The under current policies bit is redundant, because the transfer policy is referring to itself. Of course the current policies always apply; so this is some strange infinitely recursive oddity. Jimmy, With all due respect, this is a reference

Re: Andros Island Connectivity?

2013-04-30 Thread alejandroacostaalamo
Hi, Please also note that modern VSAT hubs (idirect, viasat) -some better than other- can emulate SCPC. They also support QoS, tcp spoofing and many other nice features. Regards, --Original Message-- From: Rob Seastrom To: TR Shaw Cc: Aaron C. de Bruyn Cc: NANOG mailing list

Re: Andros Island Connectivity?

2013-04-30 Thread joseph . snyder
Doesn't cable Bahamas sell in andros Warren Bailey wbai...@satelliteintelligencegroup.com wrote: I suggested VSAT. Probably the quickest and cheapest. Sent from my T-Mobile 4G LTE Device Original message From: Mike Lyon mike.l...@gmail.com Date: 04/30/2013 1:35 PM

Re: It's the end of the world as we know it -- REM

2013-04-30 Thread Jimmy Hess
On 4/30/13, Owen DeLong o...@delong.com wrote: With all due respect, this is a reference in section 8.3 to call out that the policies in section 4 regarding qualification of recipients are to be followed when determining eligibility for an 8.3 transfer. I don't read a reference to section 4