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Isn't GRE over IPSec and IPSec over GRE both are same thing. As per my digging I found something interesting in the Cisco OCG Encor 350-401 in which GRE over IPSec(tunnel mode) is clearly said that it's also know as IPSec over Gre and it makes sense ...

We have configured HSRP on the LAN side of the WAN router and are using BGP and IPsec on the WAN side.In this case, is redundancy required in the crypto map for the WAN-side interface?Since HSRP is not used on the WAN side, I believe it is not necess...

CHISHIUNG by Level 2
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  • 3 replies
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Hello,I've some questions about Secure Client and Captive Browser:we are now working with Client version 5.1.17.3382 and Start Before Login.If an employee wants to work in a Hotel or so, he has to authenticate on the Hotel Wifi, but the Security Poli...

gaigl by Level 6
  • 196 Views
  • 7 replies
  • 0 Helpful votes

Hi Guys,I am currently in the process of migrating the AnyConnect VPN from SSL to IPSec (IKEv2). During the transition period, I have allowed both SSL and IKEv2, and updated the AnyConnect XML profile to use IPSec as the primary protocol. All require...

NetHeads by Visitor
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  • 7 replies
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Hello everyone,I noticed that AnyConnect won't fall back to SSL-VPN if IPsec is configured as primary protocol and IPsec is blocked on the client-end Firewall. AnyConnect won't connect and tell me that the Gateway couldn't be reached.I thought it sho...

Sleepw4lker by Community Member
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  • 1 replies
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hello,i have the following configuration for a Cisco ASA vpn secure client with posture:i wanted to double check:! definition of COA and a trustpoint for the outside interfaceaaa-coa ssl-server port 1700crypto ca trustpoint CoA_Trustpoint! dhcp pool ...

My question is quite simple: Why does IPSec doesn't support multicast? What does it means by not supporting multicast? And how does GRE changes it all?? Are we talking about mGRE here with GRE being multicast!

Hi There, Thank you for your time. Hope you all are safe & secure in this pandemic  I need you help in my tacacs+ authentication.  I have got two TACACS+ servers (RHEL) and both are running successfully. Both are in different domains. For one domain ...

I have a laptop that beongs to a plc engineer who frequently uses netsh commands to work on equipment, recently he ran a netsh command that subsequently broke his ability to connect to cisco secure client vpn through wireless.  He can't remember whic...

Sazwon by Community Member
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  • 1 replies
  • 0 Helpful votes

Recently, I am learning about VPN's and all. Today, I just got an itch to decrypt the ESP packets on wireshark. I did follow the og pdf explaining how to do so, but it worked only if you have esp-null encryption and it's so easy to follow. Now what i...

I configured a S2S VPN between two sites and in between I put a NAT device so NAT-T must work here. But I disabled NAT-T udp encapsulation using "no crypto ipsec nat-transparency udp-encapsulation" so now I'm not seeing any nat translation with udp p...

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