GRE的工作原理VPN隧道|計算機網路|第1部分
您是否曾經想過「 GRE隧道如何工作？」「我如何加密GRE」「提高GRE穩定性的最佳實踐是什麼？」如果您對上述任何一個問題的回答是肯定的，那麼本系列適合您！
#GRE（通用路由封裝）隧道是網路工程師可以使用的最通用的工具之一。
它們是#VPN，可用於通過Internet進行隧道傳輸，創建虛擬站點以訪問WAN，繞過網路，運行OSPF，EIGRP和BGP等路由協議，避免RIP跳數問題，遷移到IPv6並連接到DDoS洗滌器。
一對路由器將在VTI（虛擬隧道介面）之間建立隧道。這通過稱為底層網路的網路。底襯對於通過隧道的流量透明。隧道是覆蓋網路。
GRE在原始數據包中添加了額外的標頭。這使原始數據包保持原樣，而封裝的數據包則穿過底層。記住要當心MTU和MSS！
在實驗室自己嘗試一下！
GRE隧道系列
第1部分：GRE的工作原理-當數據包從網路的一側移動到另一側時，請參見封裝過程-https://youtu.be/ytAqv7qHGyU
第2部分：使用IPSec進行GRE加密-默認情況下，不對GRE加密！了解IPSec的基礎知識，以及如何在GRE隧道中使用它-2018年9月7日
第3部分：提高GRE穩定性-需要注意一些陷阱，包括遞歸路由。了解一些可用於使隧道穩定的最佳實踐–即將於2018年9月21日發布
感謝您收看網路指導！訂閱以下內容，一定不要錯過GRE隧道系列的第2部分和第3部分：https://goo.gl/Z9bk72
有關更多信息，請查看https://networkdirection.net/GRE+Tunnels
該視頻對於#Cisco #CCNA和#CCNP認證很有用
請務必查看我們的其他網路視頻：
VxLAN系列：https：//goo.gl/RjDuya
網路指導官方播放列表：https：//goo.gl/QGikwC
聯絡我們
?https://www.youtube.com/c/networkdirection
?https://twitter.com/NetwrkDirection
?https://www.patreon.com/NetworkDirection
?https://www.facebook.com/networkdirection
?https://www.networkdirection.net。
Does ip mtu 1476 and ip tcp adjust-mss 1436 is really important ? What if it not be used in tunnel configuration ?
I cannot understand where is role of VTI (192.168.1.1 and 192.168.2.1) in that transmission? This video explains just typical IPv4 communication between 2 endpoints – GRE field in packet is not explained
Wow very nicely explained
Thanks for creating and sharing with us!! Perfect explanation for us that are new to GRE!!! Cheers!
Awesome video, thanks!
Nicely done!
Thank u man…..
5:28 you said 1436 when I think you meant to say 1476
best explained !!!
Great Explanation.. Thanks.
great explanation!
Thanks for this well-explained nuggets 🙂
very nice explanation – may be a LAB would have been an icing on the cake
Thank you, very clear and easy to understand. Please continue to make videos like this – highly appreciate it.
Finally some quality tutorials, great work!
Thanks. Plz emphasis more on vpn vs gre application, similarity and differences
Read more here: https://networkdirection.net/GRE+Tunnels
Try the lab here: https://networkdirection.net/labsandquizzes/labs/lab-gre-tunnels/
There is a mistake with address on topology and set for tunnel src/dst addr. 20.20.20.20 and 10.20.20.20.
Anyway, great series 🙂 thx for that.
This was fantastic, looking forward the the encryption component,
Another great explaination!
Thank you. Great explanation as always. Will you cover the IPSec tunnel in this series?
It is so weird how perfectly timed these videos are coming out to my studying. When I was looking into learning VRF's you released an excellent video series on VRF's. Now when I want to brush up on VPN's you release this video at the perfect time. Keep up the awesome work! Hopefully the next series will be MPLS.