nanog mailing list archives
RE: What do you want your ISP to block today?
From: Owen DeLong <owen () delong com>
Date: Sun, 31 Aug 2003 00:11:26 -0700
Frankly I dont want any of my ISP's filtering any of my traffic. I think we need (especially enterprise administrators like myself) to take some responsibility, and place our own filters.That's a popular sentiment which derives its facade of reasonableness from the notion that ISP's ought to provide unencumbered pipes to the Internet core. However, it doesn't bear close scrutiny.
I disagree.
Would you say that ISP's should not filter spoofed source addresses?
It depends. If spoofed source address can be determined with 100% reliability
then, generally, yes. However, an ISP, generally would only be able to reliably make this determination on some of their own customers' links. As such, that's not my traffic unless I'm already violating an AUP or one of said ISPs other customers is violationg the ISPs AUP. Of course an ISP has the right to block traffic which is in clear violation of the ISPs AUP from the ISPs customers who presumably signed the AUP as a condition of their service agreement.
That they should turn off "no ip directed broadcast"? Of course not,
I cannot think of a single situation in which the ISPs configuration of no ip directed broadcast would affect my traffic unless I was sending traffic _TO_ the broadcast of some network within the ISPs backbone. As such, I would, again, figure that falls into the AUP violation category above.
because such traffic is clearly pathological with no redeeming social value.
No. Because such traffic is clearly in violation of the AUP I signed as a customer and for no other reason. My ISP has the right to block my traffic in any case where I am in violation of the AUP. He has a similar right with any of his/her other customers. Outside of that, no, an ISP should not, generally block traffic.
The tough part for the ISP is to decide what other traffic types are absolutely illegitimate and should therefore be subject to being Verboten on the net.
Again, this is a very slippery slope and relies on the fallacy that traffic must have some socially redeeming value in order to be routed. In my eyes, what traffic has value may be radically different from your opinion. Allowing opinion to enter into rulesets is not, generally, a good plan. Owen
Current thread:
- Re: What do you want your ISP to block today?, (continued)
- Re: What do you want your ISP to block today? Iljitsch van Beijnum (Aug 30)
- Re: What do you want your ISP to block today? Ray (Aug 30)
- Re: What do you want your ISP to block today? Iljitsch van Beijnum (Aug 30)
- Re: What do you want your ISP to block today? Owen DeLong (Aug 30)
- Re: What do you want your ISP to block today? Iljitsch van Beijnum (Aug 30)
- Re: What do you want your ISP to block today? Owen DeLong (Aug 30)
- Re: What do you want your ISP to block today? Ian Mason (Aug 30)
- Re: What do you want your ISP to block today? Gerardo Gregory (Aug 30)
- RE: What do you want your ISP to block today? Mark Borchers (Aug 30)
- Re: What do you want your ISP to block today? Gerardo Gregory (Aug 30)
- RE: What do you want your ISP to block today? Owen DeLong (Aug 31)
- Re: What do you want your ISP to block today? Iljitsch van Beijnum (Aug 30)
- Re: What do you want your ISP to block today? Marshall Eubanks (Aug 30)
- What if it doesn't affect the ISP? (was Re: What do you want your ISP to block today?) Sean Donelan (Aug 30)
- Re: What if it doesn't affect the ISP? (was Re: What do you want your bmanning (Aug 30)
- Re: What if it doesn't affect the ISP? (was Re: What do you want your Owen DeLong (Aug 31)
- Re: What if it doesn't affect the ISP? (was Re: What do you want your ISP to block today?) Matthew Palmer (Aug 30)
- Re: What if it doesn't affect the ISP? (was Re: What do you want your ISP to block today?) Christopher X. Candreva (Aug 31)
- Re: What if it doesn't affect the ISP? (was Re: What do you want your ISP to block today?) Christopher X. Candreva (Aug 31)
- Re: What if it doesn't affect the ISP? (was Re: What do you want your ISP to block today?) Iljitsch van Beijnum (Aug 31)
- Re: What do you want your ISP to block today? Jack Bates (Aug 30)