Wireshark TCP Deep Dive continues: You need to understand this - whats the difference between Maximum Transmission Unit (MTU) vs Maximum Segment Size (MSS).

// MENU //

00:00 ▶️ Coming Up

00:25 ▶️ Intro

00:32 ▶️ Chris introduction

00:47 ▶️ Topic: Maximum Segment Size (MSS)

01:27 ▶️ Explaining Maximum Transmission Unit (MTU)

08:42 ▶️ Interface layout

10:25 ▶️ David Bombal "War Story"

12:00 ▶️ Wireshark demo

13:26 ▶️ Increasing the MTU on your device for larger connections

16:27 ▶️ Difference between MTU and MSS

19:36 ▶️ Wireshark demo (cont'd)

24:58 ▶️ Using Path MTU Discovery

27:02 ▶️ Ping and Wireshark demo

33:32 ▶️ Cool trick for Mac system

35:08 ▶️ TCP/MSS Clamping

38:21 ▶️ Chris Greer "War Story"

51:09 ▶️ What happens if you can't capture a server

55:08 ▶️ MSS Adjustment commands

56:55 ▶️ Tunnel Path MTU Discovery

57:40 ▶️ Figuring out 1432

01:02:52 ▶️ Conclusion

01:04:48 ▶️ "Cool features" in Wireshark

Previous video: https://youtu.be/rmFX1V49K8U

// Wireshark PCAP files //

MTU PCAP: https://github.com/packetpioneer/yout...

War Story PCAP Client: https://github.com/packetpioneer/yout...

War Story PCAP Server: https://github.com/packetpioneer/yout...

Special “Thumbs Up” and “Subscribe” PCAP: https://github.com/packetpioneer/yout...

// VLAD SOCIAL //

Twitter: https://twitter.com/Packet_vlad

PMTUD Blog: http://www.packettrain.net/2016/09/21...

Thanks Vladimir Gerasimov!

// GOOD READING //

Network Implications of PMTUD: https://www.ipspace.net/kb/Internet/P...

Path MTU Discovery: https://www.ipspace.net/kb/Internet/P...

Resolve IPv4 Fragmentation, MTU, MSS, and PMTUD Issues with GRE and IPsec: https://www.cisco.com/c/en/us/support...

Configuring TCP MSS Adjustment: https://www.cisco.com/c/en/us/td/docs...

Ethernet MTU and TCP MSS Adjustment Concept for PPPoE Connections: https://www.cisco.com/c/en/us/support...

// MY STUFF //

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// David SOCIAL //

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// Chris SOCIAL //

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