File:Netfilter-packet-flow.svg
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Original file (SVG file, nominally 1,650 × 525 pixels, file size: 106 KB)
Summary
| Description | Schematic for the packet flow paths through Linux networking and Xtables |
| Date | last updated 2019-May-19 |
| Source | Own work, Origin SVG PNG |
| Author | Jan Engelhardt |
| SVG development |  This W3C-invalid diagram was created with Inkscape.  This diagram uses embedded text that can be easily translated using a text editor. |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:54, 21 April 2021 | | 1,650 × 525 (106 KB) | Xavifr | Moved Re-route checking based on info from https://www.frozentux.net/iptables-tutorial/chunkyhtml/c962.html |
| 00:18, 4 December 2020 |  | 1,650 × 525 (105 KB) | Editordepapa | Fixed SVG document size | |
| 00:12, 4 December 2020 |  | 1,650 × 675 (105 KB) | Editordepapa | Added the NAT input chain | |
| 04:17, 27 June 2020 |  | 1,650 × 475 (84 KB) | Wokester | Change XDP_ACCEPT to XDP_PASS according to https://prototype-kernel.readthedocs.io/en/latest/networking/XDP/implementation/xdp_actions.html | |
| 17:37, 28 September 2019 |  | 1,650 × 475 (102 KB) | AYDanilov | Reroute check of local-originated packets occurs after the OUTPUT hook. | |
| 14:54, 14 May 2019 |  | 1,650 × 475 (102 KB) | Teknoraver | Added XDP in the flow | |
| 02:15, 28 February 2014 |  | 1,450 × 475 (95 KB) | Jengelh | NF permit hooking at any point. The image merely shows the basic/principial set of well-known filtering opportunities, and not every possible action. | |
| 01:16, 10 October 2013 |  | 1,450 × 475 (95 KB) | IlyaBobyr | Packet is actually rerouted after any changes in the nat.OUTPUT change. I assume, filter.OUTPUT is also happening before the "reroute check". It makes sense, at least for nat.OUTPUT - if you nat your packet and change its destination IP, normally, you... | |
| 00:41, 12 November 2012 |  | 1,450 × 475 (95 KB) | Jengelh | Wikipedia's SVG->PNG converter fails to support path-following text, therefore replace it by normal text. | |
| 00:37, 12 November 2012 |  | 1,450 × 475 (94 KB) | Jengelh | Added AF_PACKET socket (used by e.g. tcpdump/iptraf-ng/dhcpd) |
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