tcpdump mailing list archives
Re: "not vlan" filter expression brokencatastrophically!
From: Ani Sinha <ani () aristanetworks com>
Date: Mon, 4 Feb 2013 09:22:00 -0800
On Mon, Feb 4, 2013 at 1:29 AM, David Laight <David.Laight () aculab com> wrote:
I agree. Honestly I think a perfectly reasonable stance to take is requesting that the filters get packets *as seen on the wire/nic*. I think that's the mental model everyone uses, and any deviation from that model is prone to bugs in the kernel, libpcap, and for the enduser.TX and RX segmentation offload also confuse matters here. I think Linux can give libpcap large TCP fragments even when the hardware isn't doing segmentation offload. This also breaks the mental model.
It would be nice if someone can initiate a discussion/debate on netdev on the points that we are raising here. I tried one time with vlan issues and it met with lot of resistance. May be another person will have better success than me :-) _______________________________________________ tcpdump-workers mailing list tcpdump-workers () lists tcpdump org https://lists.sandelman.ca/mailman/listinfo/tcpdump-workers
Current thread:
- "not vlan" filter expression broken catastrophically! Ani Sinha (Jan 31)
- Re: "not vlan" filter expression broken catastrophically! Gianluca Varenni (Jan 31)
- Re: "not vlan" filter expression broken catastrophically! Bill Fenner (Feb 01)
- Re: "not vlan" filter expression broken catastrophically! Gianluca Varenni (Feb 01)
- Re: "not vlan" filter expression broken catastrophically! Paul Pearce (Feb 01)
- Re: "not vlan" filter expression broken catastrophically! Bill Fenner (Feb 01)
- Re: "not vlan" filter expression broken catastrophically! Paul Pearce (Feb 01)
- Re: "not vlan" filter expression brokencatastrophically! David Laight (Feb 04)
- Re: "not vlan" filter expression brokencatastrophically! Ani Sinha (Feb 04)
- Re: "not vlan" filter expression brokencatastrophically! Rick Jones (Feb 04)
- Re: "not vlan" filter expression broken catastrophically! Bill Fenner (Feb 01)
- Re: "not vlan" filter expression broken catastrophically! Ani Sinha (Feb 01)
- Re: "not vlan" filter expression broken catastrophically! Gianluca Varenni (Jan 31)
- Re: "not vlan" filter expression broken catastrophically! Gianluca Varenni (Feb 01)
- Re: "not vlan" filter expression broken catastrophically! Guy Harris (Feb 01)
- Re: "not vlan" filter expression broken catastrophically! Gianluca Varenni (Feb 01)
- Re: "not vlan" filter expression broken catastrophically! Bill Fenner (Feb 04)
- Re: "not vlan" filter expression broken catastrophically! Gianluca Varenni (Feb 05)
- Re: "not vlan" filter expression broken catastrophically! Ani Sinha (Feb 01)
- Re: "not vlan" filter expression broken catastrophically! Bill Fenner (Feb 04)