Re: Layer 2 vs. Layer 3 to TOR

2009-11-15 Thread gordon b slater
On Fri, 2009-11-13 at 09:44 +0100, Tore Anderson wrote: > * Jonathan Lassoff > > > Are there any applications that absolutely *have* to sit on the same > > LAN/broadcast domain and can't be configured to use unicast or multicast > > IP? > > FCoE comes to mind. > and in a similar vein, ATAoE

Re: AH is pretty useless and perhaps should be deprecated

2009-11-15 Thread Marshall Eubanks
On Nov 14, 2009, at 9:58 PM, Steven Bellovin wrote: On Nov 14, 2009, at 8:28 PM, David Barak wrote: I've seen AH used as a "prove that this hasn't been through a NAT" mechanism. In this context, it's pretty much perfect. However, what I don't understand is where the dislike for it orig

Re: AH is pretty useless and perhaps should be deprecated

2009-11-15 Thread Merike Kaeo
No - if you read the below pointers carefully it does specify that ESP-Null is a MUST for OSPFv3 authentication protocol while AH is a MAY. AH is mostly superfluous and complicates implementations. Someone on the IPsec mailing list stated that at least two implementations he was aware of u

Re: Layer 2 vs. Layer 3 to TOR

2009-11-15 Thread Simon Leinen
Tore Anderson writes: > * Jonathan Lassoff >> Are there any applications that absolutely *have* to sit on the same >> LAN/broadcast domain and can't be configured to use unicast or multicast >> IP? > FCoE comes to mind. Doesn't FCoE need even more than that, i.e. "lossless" Ethernet with end-to-e

ADMIN: List FAQ/Monthly Post.

2009-11-15 Thread NANOG Mail List Committee
This 100-line document contains 62% of what you need to know to avoid annoying 10,000 people in your email to the NANOG list. It also contains pointers to another 23%. Please take 5 minutes to read it before you post [again]. General Information === About NANOG:http://

Re: AH is pretty useless and perhaps should be deprecated

2009-11-15 Thread Joel Jaeggli
Owen DeLong wrote: > I've never seen anyone use AH vs. ESP. OSPFv3? > I've always used ESP and so has > every other IPSEC implementation I've seen anyone do. > > Owen > > On Nov 13, 2009, at 4:22 PM, Jack Kohn wrote: > >> Hi, >> >> Interesting discussion on the utility of Authentication Heade

Alternatives to Cisco SFP-GE-S?

2009-11-15 Thread Seth Mattinen
Does anyone have any practical long term experience with third party alternatives to the (must be made from solid gold) Cisco SFP-GE-S module that they'd like to share with me? I suppose I could just use compatible GLC-SX-MM instead, but I kind of want to have DOM support. ~Seth

Re: AH is pretty useless and perhaps should be deprecated

2009-11-15 Thread Bill Fehring
On Sun, Nov 15, 2009 at 20:48, Joel Jaeggli wrote: > Owen DeLong wrote: >> I've never seen anyone use AH vs. ESP. > > OSPFv3? Maybe I'm asking a dumb question, but why would one prefer AH over ESP for OSPFv3? RFC4552: "In order to provide authentication to OSPFv3, implementations MUST support ES

Re: AH is pretty useless and perhaps should be deprecated

2009-11-15 Thread Joel Jaeggli
Bill Fehring wrote: > On Sun, Nov 15, 2009 at 20:48, Joel Jaeggli wrote: >> Owen DeLong wrote: >>> I've never seen anyone use AH vs. ESP. >> OSPFv3? > > Maybe I'm asking a dumb question, but why would one prefer AH over ESP > for OSPFv3? Header protection... still doesn't provide replay protec

Re: Alternatives to Cisco SFP-GE-S?

2009-11-15 Thread sthaug
> Does anyone have any practical long term experience with third party > alternatives to the (must be made from solid gold) Cisco SFP-GE-S module > that they'd like to share with me? I suppose I could just use compatible > GLC-SX-MM instead, but I kind of want to have DOM support. There are plenty