In this video we will talk about ISAKMP header again and will discuss about ISAKMP DPD and Keepalives
Views: 1698 Ajay Grewal
Learn about Cisco ASAv route based VPN (Demo connecting AWS and Azure) ASAv (AWS) crypto ikev1 enable management ! crypto ikev1 policy 10 authentication pre-share encryption aes hash sha group 2 lifetime 28800 ! crypto ipsec ikev1 transform-set AWS esp-aes esp-sha-hmac ! crypto ipsec profile AWS set ikev1 transform-set AWS set pfs group2 set security-association lifetime seconds 3600 ! tunnel-group 22.214.171.124 type ipsec-l2l ! tunnel-group 126.96.36.199 ipsec-attributes ikev1 pre-shared-key cisco isakmp keepalive threshold 10 retry 10 ! interface Tunnel1 nameif AWS ip address 188.8.131.52 255.255.255.0 tunnel source interface management tunnel destination 184.108.40.206 tunnel mode ipsec ipv4 tunnel protection ipsec profile AWS no shut ! router bgp 64502 bgp log-neighbor-changes address-family ipv4 unicast neighbor 220.127.116.11 remote-as 64501 neighbor 18.104.22.168 activate neighbor 22.214.171.124 default-originate redistribute connected redistribute static no auto-summary no synchronization exit-address-family ! ASAv (Azure) crypto ikev1 enable management ! crypto ikev1 policy 10 authentication pre-share encryption aes hash sha group 2 lifetime 28800 ! crypto ipsec ikev1 transform-set Azure esp-aes esp-sha-hmac ! crypto ipsec profile Azure set ikev1 transform-set Azure set pfs group2 set security-association lifetime seconds 3600 ! tunnel-group 126.96.36.199 type ipsec-l2l ! tunnel-group 188.8.131.52 ipsec-attributes ikev1 pre-shared-key cisco isakmp keepalive threshold 10 retry 10 ! interface Tunnel1 nameif Azure ip address 184.108.40.206 255.255.255.0 tunnel source interface management tunnel destination 220.127.116.11 tunnel mode ipsec ipv4 tunnel protection ipsec profile Azure no shut ! router bgp 64502 bgp log-neighbor-changes address-family ipv4 unicast neighbor 18.104.22.168 remote-as 64501 neighbor 22.214.171.124 activate neighbor 126.96.36.199 default-originate redistribute connected redistribute static no auto-summary no synchronization exit-address-family !
Views: 1383 Anubhav Swami
DMVPN IPSec overlay is used as the transport independent design for the Cisco Intelligent WAN solution. In addition to providing GUI-based management and situational awareness for Cisco IWAN intelligent path control and application performance optimization, LiveAction also enables easy configuration and deployment of DMVPN QoS. Download the LiveAction 14-Day Trial: http://liveaction.com/download/ Take LiveAction for a Test Drive!: http://liveaction.com/support/testdrive/
Views: 789 LiveAction Network Performance Software
Improving GRE stability | VPN Tunnels Part 3 Once you’ve built your GRE tunnel, you need to make sure it is stable. One of the potential issues that you may face is called Recursive Routing. This can cause your tunnel to flap repeatedly. Recursive Routing occurs when underlay routes are incorrectly advertised into the overlay. This can be worse when little attention is paid to LPM (Longest Prefix Match), the route metric, and the administrative distance. Another concern is the stateless nature of the tunnel. This can result in traffic being blackholed. We can use keepalives (heartbeats), as well as tuning the source and destination interfaces, in order to resolve this issue. There is a catch though. Keepalives do not work with route-based IPSec encryption. Neither does BFD for that matter! Some valid work arounds include using crypto-maps (policy-based encryption), using routing protocols, or using IP SLA with an EEM script. Part 1: How GRE Works - See the encapsulation process, as a packet moves from one side of the network to another Part 2: GRE Encryption with IPSec - GRE is not encrypted by default! See the basics of IPSec, and how we can use it with GRE tunnels Part 3: Improving GRE Stability - There are a few pitfalls to watch out for, including recursive routing. See some of the best practices that you can apply to make your tunnel stable For more information, have a look at https://networkdirection.net/Advanced+GRE Anatomy of GRE Tunnels (by ‘Sarah’): https://learningnetwork.cisco.com/blogs/vip-perspectives/2017/03/14/anatomy-of-gre-tunnels How to Detect IPSec GRE Tunnel Status: https://learningnetwork.cisco.com/message/590257#590257 This video is useful for Cisco #CCNA and #CCNP certifications 🌏 https://www.youtube.com/c/networkdirection 🌏 https://twitter.com/NetwrkDirection 🌏 https://www.patreon.com/NetworkDirection 🌏 https://www.facebook.com/networkdirection 🌏 https://www.networkdirection.net 🌏 https://www.patreon.com/NetworkDirection
Views: 974 Network Direction
A keepalive (KA) is a message sent by one device to another to check that the link between the two is operating, or to prevent this link from being broken. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 150 Audiopedia
The following is a video tutorial on L2TPv3 (RFC 3931 and updated by RFC 5641) and will walk you through, step-by-step, the process of how you would extend your Layer 2 network from one location to another (in this video I simulate extending your Layer 2 network between New York and San Diego). This video demonstrates the use of the Ethernet encapsulation of the attachment circuit interface (as opposed to using the VLAN 802.1Q encapsulation method) and I also cover each step in the setup of OSPF and there is even some debugging/troubleshooting to reveal an authentication issue between the sites. Enjoy!
Views: 5576 Travis Bonfigli
The Implementing BGP over IPsec Learning Byte covers how to configure and troubleshoot BGP over IPsec on SRX Series devices. This byte is most appropriate for users who are looking to understand how to implement BGP over IPsec with SRX Series devices. If you want to learn more about this topic, check out the Advanced Junos Security (AJSEC) course. Presenter: Zach Gibbs, Content Developer Relevant to Junos OS Releases: Junos 12.1X46-D15 or later Relevant to Juniper Platforms: SRX Series devices
Views: 2286 JuniperNetworks
The following is a video tutorial builds on my previous tutorial on L2TPv3 (RFC 3931 and updated by RFC 5641) and will walk you through, step-by-step, the process of how you would configure L2TPv3 in Manual Mode and how to set a variety of specific options in place of running in Dynamic Mode. I also apply IPSec to protect the traffic transiting the L2TPv3 pseudowire and demonstrate how/why the L2TP IDs need to match when using manual mode and what happens when they don't. Enjoy!
Views: 2639 Travis Bonfigli
Internet was down, so this lab was recorded the previous day. ::WHIP CRACKING (labs):: DMVPN with IPSEC and RIP routing :: APPLICABLE RFCs :: ISAKMP - https://tools.ietf.org/html/rfc2408 IKE - https://tools.ietf.org/html/rfc2409 IP Authentication Header - https://tools.ietf.org/html/rfc4302 ESP - https://tools.ietf.org/html/rfc4303 IKEv2 - https://tools.ietf.org/html/rfc5996 :: SOCIAL MEDIA :: TWITCH - https://www.twitch.tv/thelantamer DISCORD - https://discord.gg/BBSGPYH TWITTER - https://twitter.com/thelantamer INSTAGRAM - https://www.instagram.com/thelantamer/ FACEBOOK - https://www.facebook.com/lantamer/ :: LAB LINKS :: Google docs share - http://bit.ly/2AbJQhp INE Diagrams - http://bit.ly/2mgTGso INE VIRL files on Github - http://bit.ly/2ht78YH
Views: 38 theLAN Tamer
In this short video I show a brief overview of the step by step requirements to create a VPN between a Cisco IOS using VTI and FortiGate 5.2.x track using 0.0.0.0/0.0.0.0 Quick mode selectors (Single P2) Reason to configure your Cisco with this type of VPN: • Simplifies management---Customers can use the Cisco IOS® Software virtual tunnel constructs to configure an IPSec virtual tunnel interface, thus simplifying VPN configuration complexity, which translates into reduced costs because the need for local IT support is minimized. In addition, existing management applications that can monitor interfaces can be used for monitoring purposes. • Supports multicast encryption---Customers can use the Cisco IOS Software IPSec VTIs to transfer the multicast traffic, control traffic, or data traffic---for example, many voice and video applications---from one site to another securely. • Provides a routable interface---Cisco IOS Software IPSec VTIs can support all types of IP routing protocols. Customers can use these VTI capabilities to connect larger office environments---for example, a branch office, complete with a private branch exchange (PBX) extension. • Improves scaling---IPSec VTIs need fewer established security associations to cover different types of traffic, both unicast and multicast, thus enabling improved scaling. • Offers flexibility in defining features---An IPSec VTI is an encapsulation within its own interface. This offers flexibility of defining features to run on either the physical or the IPSec interface. You can find me on: Twitter - @RyanBeney - https://twitter.com/ryanbeney Linkedin - /RyanBeney - https://uk.linkedin.com/in/ryanbeney Cisco Configuration I used: ### crypto isakmp policy 1 encr des authentication pre-share group 2 crypto isakmp key test123 address 10.200.3.1 ! ! crypto ipsec transform-set Trans-1 esp-des esp-md5-hmac mode tunnel ! crypto ipsec profile testvpn set transform-set Trans-1 set pfs group2 interface Tunnel1 tunnel source 10.200.3.254 Tunnel ip add 192.168.0.1 tunnel mode ipsec ipv4 tunnel destination 10.200.3.1 tunnel protection ipsec profile testvpn ip route 172.16.0.0 255.255.255.0 tunnel 1 ###
Views: 7820 Ryan Beney
In this video we will talk about how to allow or inspect the traffic in the ASA and how to create a route based VPN
Views: 1775 Ajay Grewal
Views: 182 Synplify
This video demonstrates how you can build a Site-to-Site IPSec VPN Tunnel between a SonicWall and Sophos XG Firewall. In our previous video, Alan & Matt demonstrate how to configure the SonicWall device, so make sure to check that out first on the link below. Watch Part 1: https://www.youtube.com/watch?v=_OJ8j_xOTYQ
Views: 1995 Firewalls.com
You will learn GRE and how to share those networks with EIGRP. Fun! Those IP addresses are getting to me. I'm repeating some. Ha. Derpy: http://elppajack.deviantart.com/art/Derpy-Hooves-Scrunchy-Face-333589319 luna: http://proenix.deviantart.com/art/Sad-Luna-296053579 Twilight sparkle: http://jeatz-axl.deviantart.com/art/Twilight-Sparkle-Whaa-412896192
Views: 1066 Derpy Networking
GNS3 Portable Project File: https://bit.ly/2JjtYh6 This is one of multiple Cisco CCNP GNS3 Labs. Are you ready to pass your CCNP exam? For lots more content, visit http://www.davidbombal.com - learn about GNS3, CCNA, Packet Tracer, Python, Ansible and much, much more. 300-101 ROUTE Exam information: https://bit.ly/2GkcFXQ 300-115 SWITCH Exam information: https://bit.ly/2KrSWIe 300-135 TSHOOT Exam information: https://bit.ly/2IlHpgY Training: http://www.davidbombal.com Border Gateway Protocol (BGP) is a standardized exterior gateway protocol designed to exchange routing and reachability information among autonomous systems (AS) on the Internet. The protocol is classified as a path vector protocol. The Border Gateway Protocol makes routing decisions based on paths, network policies, or rule-sets configured by a network administrator and is involved in making core routing decisions. BGP may be used for routing within an autonomous system. In this application it is referred to as Interior Border Gateway Protocol, Internal BGP, or iBGP. In contrast, the Internet application of the protocol may be referred to as Exterior Border Gateway Protocol, External BGP, or eBGP. BGP neighbors, called peers, are established by manual configuration between routers to create a TCP session on port 179. A BGP speaker sends 19-byte keep-alive messages every 60 seconds to maintain the connection. Among routing protocols, BGP is unique in using TCP as its transport protocol. When BGP runs between two peers in the same autonomous system (AS), it is referred to as Internal BGP (iBGP or Interior Border Gateway Protocol). When it runs between different autonomous systems, it is called External BGP (eBGP or Exterior Border Gateway Protocol). Routers on the boundary of one AS exchanging information with another AS are called border or edge routers or simply eBGP peers and are typically connected directly, while iBGP peers can be interconnected through other intermediate routers. Other deployment topologies are also possible, such as running eBGP peering inside a VPN tunnel, allowing two remote sites to exchange routing information in a secure and isolated manner. The main difference between iBGP and eBGP peering is in the way routes that were received from one peer are propagated to other peers. For instance, new routes learned from an eBGP peer are typically redistributed to all iBGP peers as well as all other eBGP peers (if transit mode is enabled on the router). However, if new routes are learned on an iBGP peering, then they are re-advertised only to all eBGP peers. These route-propagation rules effectively require that all iBGP peers inside an AS are interconnected in a full mesh. How routes are propagated can be controlled in detail via the route-maps mechanism. This mechanism consists of a set of rules. Each rule describes, for routes matching some given criteria, what action should be taken. The action could be to drop the route, or it could be to modify some attributes of the route before inserting it in the routing table.
Views: 1218 David Bombal