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North American Network Operators Group

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Re: How many protocols...

  • From: Stephen Sprunk
  • Date: Tue Jun 11 11:37:39 2002

Thus spake "Magnus Boden" <mb@ozaba.cx>
> I wouldn't call it an isp if they only allowed tcp, udp and icmp.
> It should be all ip protocols.
>
> There can be a maximum of 256 of them. The isp shouldn't care what
> the ipheader->protocol field is set to.

There is at least one ISP here in the US that filters protocol 50 (IPsec ESP).
Does that mean they're really not an ISP?

S





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