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DMVPN nhrp redirect

gdy1039
Level 1
Level 1

Hello

Good day to you.

Could you please help my DMVPN question.

R1 is hub,  R3, R4, R5 is spoke. my lab is run in PNET, Configuration had attached.

Q1. ip nhrp redirect should input at hub or all spoke?

Q2. before I input "ip nhrp redirect" and "ip nhrp shortcut", I found R3 and R4 can direct communicate. No different after these 2 command. May you provide some explain to help me understand 2 command. I had read command reference but not help.

Q3. in fact, R3 can direct ping R4 in phase 1 setup which is no OSPF. Prove by packet capture.  OSPF just provide route for backend subnet. Does my understand is true?

Thanks for your time.

 

Best Regards.

Scott

 

gdy1039_1-1684069557553.png

 

 

4 Replies 4

gdy1039
Level 1
Level 1

Hello

I think question may more relate to VPN. So I create a question in VPN.

Maybe you could help to close this question.

Thank you.

 

Best Regards.

Scott

please share the config as Text I can not open the zip files 

Dear MHM

 

Please check attachment.

Thanks for your valuable time.

 

Best Regards.

Scott

 

Q1. ip nhrp redirect should input at hub or all spoke? only in Hub 

Q2. before I input "ip nhrp redirect" and "ip nhrp shortcut", I found R3 and R4 can direct communicate. No different after these 2 command. May you provide some explain to help me understand 2 command. I had read command reference but not help. no different because the effect is happened before you add the command, to see the effect config summary (for all subnet behind the spoke) in hub and then ping from LAN behind spoke1 to LAN behind spoke2 and check the redirect.

Q3. in fact, R3 can direct ping R4 in phase 1 setup which is no OSPF. Prove by packet capture.  OSPF just provide route for backend subnet. Does my understand is true? this point is not clear for me

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