Aggregation for IPv4-compatible IPv6 address space

2008-02-03 Thread snort bsd

Hi all:

With IPv4-compatible IPv6 address space, could I aggregate the address space?

say 192.168.0.0/16 become ::192.168/112? or It must be converted to native IPv6 
address space?

Just wondering, 




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Re: IPv6 questions

2008-01-29 Thread snort bsd

It does make sense though. Say one megabits interface with 20 VLANs. In that 
scenario, every VLAN, usually has own link-local address. It is more practical 
than multiple interfaces with same link-local address.

I found this on Juniper router and now assume it is Juniper specific 
implementation.

Thanks all

- Original Message 
From: Scott Morris [EMAIL PROTECTED]
To: Erik Nordmark [EMAIL PROTECTED]; snort bsd [EMAIL PROTECTED]
Cc: nanog@merit.edu; juniper-nsp [EMAIL PROTECTED]
Sent: Tuesday, 29 January, 2008 12:36:55 PM
Subject: RE: IPv6 questions


And unless you are on only certain particular devices (e.g. L3
 switches)
then the end device won't necessarily have any relevant clue what VLAN
 it's
on.

I have never seen/heard of an RFC for it either and would certainly
 wonder
WHY?.  :)

Scott 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
 Erik
Nordmark
Sent: Tuesday, January 29, 2008 1:44 PM
To: snort bsd
Cc: nanog@merit.edu; juniper-nsp
Subject: Re: IPv6 questions


snort bsd wrote:
 Never mind
 
 it is the VLAN number. But which RFC define this? 

I've never seen an IPv6 RFC specify to put the VLAN number in the
 link-local
address.
Thus this must be an (odd) choice made by some implementation. Perhaps
 the
implementation somehow requires that all the link-local addresses for
 all
its (sub)interfaces be unique, even though the RFCs assume that the
implementation should be able to deal with multiple interfaces with
 same
same link-local address.

Erik

 Thanks all
 
 Dave
 
 - Original Message 
 From: snort bsd [EMAIL PROTECTED]
 To: nanog@merit.edu; juniper-nsp [EMAIL PROTECTED]
 Sent: Monday, 28 January, 2008 3:05:59 PM
 Subject: IPv6 questions
 
 
 Hi All:
 
 With link-local IPv6 address, the converting from MAC-48 to EDU-64  
 address format (FF FE stuffing). How does the VLAN tags affect the  
 conversion?
 
 With the rule of FF FE stuffing, I can see clearly work on the ptp  
 interfaces. But on those Ethernet based VLANs, it doesn't seem to 
 follow  that pattern:
 
 Current address: 00:90:69:4a:b9:5d, Hardware address: 
 00:90:69:4a:b9:5d
 
 well, i assume the link-local should be fe80::290:69ff:fe4a:b95d/64.
  actually, it shows:
 
 Destination: fe80::/64, Local: fe80::290:6903:94a:b95d
 
 how does the router get this 03 09 instead of ff fe?
 
 Thanks all
 
 
 
 
 
 
 
 
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Re: IPv6 questions

2008-01-28 Thread snort bsd

Never mind

it is the VLAN number. But which RFC define this? 

Thanks all

Dave

- Original Message 
From: snort bsd [EMAIL PROTECTED]
To: nanog@merit.edu; juniper-nsp [EMAIL PROTECTED]
Sent: Monday, 28 January, 2008 3:05:59 PM
Subject: IPv6 questions


Hi All:

With link-local IPv6 address, the converting from MAC-48 to EDU-64
 address format (FF FE stuffing). How does the VLAN tags affect the
 conversion?

With the rule of FF FE stuffing, I can see clearly work on the ptp
 interfaces. But on those Ethernet based VLANs, it doesn't seem to follow
 that pattern:

Current address: 00:90:69:4a:b9:5d, Hardware address: 00:90:69:4a:b9:5d

well, i assume the link-local should be fe80::290:69ff:fe4a:b95d/64.
 actually, it shows:

Destination: fe80::/64, Local: fe80::290:6903:94a:b95d

how does the router get this 03 09 instead of ff fe?

Thanks all








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IPv6 questions

2008-01-28 Thread snort bsd

Hi All:

With link-local IPv6 address, the converting from MAC-48 to EDU-64 address 
format (FF FE stuffing). How does the VLAN tags affect the conversion?

With the rule of FF FE stuffing, I can see clearly work on the ptp interfaces. 
But on those Ethernet based VLANs, it doesn't seem to follow that pattern:

Current address: 00:90:69:4a:b9:5d, Hardware address: 00:90:69:4a:b9:5d

well, i assume the link-local should be fe80::290:69ff:fe4a:b95d/64. actually, 
it shows:

Destination: fe80::/64, Local: fe80::290:6903:94a:b95d

how does the router get this 03 09 instead of ff fe?

Thanks all








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dns for private domain

2005-05-20 Thread snort bsd

Hi All:

Does a DNS have specific reqirements? I imagine it
would not need the root cache file since it would go
nowhere except own domain.

I set up a DNS (named it as lab.com) server in the
lab and it seems to be working fine; I can resolve
hostnames on my linux box and window box, but on Sun
Solaris machine I got non-exist domain error.
Anything specific for the Solaris' resolver or I need
to do some extra on my DNS configuration?

TIA

Dave

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radius question

2005-01-21 Thread snort bsd

hi:

are authentication packets between routers and radius
servers encrypted or clear-text?

Thanks

dave_au





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ppt file for US-Sprint Optical Internet Design?

2004-07-15 Thread snort bsd

hi all:

does anyone here have ppt file for Peter Lothberg's
US-Sprint Optical Internet Design?

tia

dave_au


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