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Cisco CyberSecurity

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Hello Cisco Expert,Anyone has PCAP file that captured malicious malformed IPSec packet (IKEv2, ESP, etc)? I need it for CCNP Security cert.I will try also generating IKEv2 malformed packet using bogus negotiation parameters. Any advise?Thank You,Audi...

onibala by Level 1
  • 685 Views
  • 4 replies
  • 0 Helpful votes

Dear Concern, Presently we have configure GRE tunnel on my switch 3650-48-TS form my HO site to Remote site-A and site-B, both the tunnels are working fine.Last week we shifted GRE to ipsec over GRE on my Cisco 3650-48-TS switch with IOS version 16.3...

We currently use Cisco Duo with LDAPS for our SSL VPN Clients. On the firewall (ASA5508) we have Dynamic Access Policies in place, allowing certain Active Directory groups access to certain subnets.   When testing moving to SAML (Hybrid AzureAD with ...

Hi all,My branch Switch Cisco WS-C3560 cant do NAT therefore traffic goes to the internet through the tunnel.This tunnel with ISR4321 is without encryption because the branch switches do not support encryption.Here is no firewall and traffic is not f...

Kepler by Level 1
  • 502 Views
  • 2 replies
  • 0 Helpful votes

Hi, Note: I'm kind of new to cisco, and this configuration was not made by me. We have a IKEv2 tunnel configured and I rebember that when I run show crypto ikev2 sa it would only show 1 Tunnel with status READY A few week ago I noticed that now it sh...

jorgemfm by Level 1
  • 15701 Views
  • 20 replies
  • 15 Helpful votes

Greetings, some of my Ubuntu 22.04LTS users are are getting the following error as seen in syslog: "Server certificate validation failed with the following errors: #011Certificate has expired."The cert is not expired. all of my certs in the crypto st...

ERichard by Level 1
  • 556 Views
  • 5 replies
  • 0 Helpful votes