tcpdump mailing list archives
Re: Warning on enabling ip6 protochain 6
From: ramkumar.paranandi () gmail com
Date: Tue, 9 Aug 2011 08:28:18 -0700
"Ip6 protochain 6 and tcp port 25 and net 10.1.1.0 " would filter packets ipv6 with extension hdrs and tcp port 25 and which belongs to network 10.1.1.0? Can we use other filters along with ip6 protochain? Thanks, ./ram On Aug 9, 2011, at 12:39 AM, Guy Harris <guy () alum mit edu> wrote:
On Aug 8, 2011, at 10:56 PM, ramkumar.paranandi () gmail com wrote:How much percentage of traffic in real world scenarios would these kind (ipv6 chain)of packets consist?It depends on the scenario. If 50% of the traffic on your network is TCP-over-IPv6 traffic, then 50%. :-) Or, to put it another way, I doubt I can give you the answer you're probably really looking for, i.e. the answer to "how much of a problem will this be?", as it depends on the traffic your network. How much of it is TCP-over-IPv6 traffic? The *rest* of the traffic will be the problem, as that's the traffic that could have been rejected had "ip6 protochain 6" been implemented in the kernel with e.g. a magic IPv6 protochain BPF instruction, but now has to be handed up to userland to be rejected in userland.- This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
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Current thread:
- Re: Warning on enabling ip6 protochain 6, (continued)
- Re: Warning on enabling ip6 protochain 6 Guy Harris (Aug 04)
- Re: Warning on enabling ip6 protochain 6 ramkumar . paranandi (Aug 04)
- Re: Warning on enabling ip6 protochain 6 Guy Harris (Aug 04)
- Re: Warning on enabling ip6 protochain 6 Darren Reed (Aug 05)
- Re: Warning on enabling ip6 protochain 6 Guy Harris (Aug 06)
- Re: Warning on enabling ip6 protochain 6 Darren Reed (Aug 09)
- Re: Warning on enabling ip6 protochain 6 ramkumar . paranandi (Aug 09)
- Re: Warning on enabling ip6 protochain 6 Guy Harris (Aug 09)
- Re: Warning on enabling ip6 protochain 6 ramkumar . paranandi (Aug 09)
- Re: Warning on enabling ip6 protochain 6 Guy Harris (Aug 09)
- Re: Warning on enabling ip6 protochain 6 ramkumar . paranandi (Aug 09)
- Re: Warning on enabling ip6 protochain 6 Darren Reed (Aug 09)