# Routing & Switching **URL:** https://forum.networklessons.com/c/routing-switching/34.md?page=3 [Latest](https://forum.networklessons.com/latest.md) · [Categories](https://forum.networklessons.com/categories.md) **Page:** 4 --- ## [Practice SD-WAN requirement](https://forum.networklessons.com/t/practice-sd-wan-requirement/15242)
**Author:** [@u.forte](https://forum.networklessons.com/u/u.forte)\ **Replies:** 3\ **Last updated:** [January 23, 2024, 5:50am UTC](https://forum.networklessons.com/t/practice-sd-wan-requirement/15242 "2024-01-23T05:50:22Z")
Hi, I want to implement and study sd-wan on my laptop 8 gb of ram i want know wich is the best method to learn sd-wan and make practise thanks --- ## [IOS-XE with IPv4/IPv6 Stateless DHCP and Zone Firewall](https://forum.networklessons.com/t/ios-xe-with-ipv4-ipv6-stateless-dhcp-and-zone-firewall/42470)
**Author:** [@tdean](https://forum.networklessons.com/u/tdean)\ **Replies:** 0\ **Last updated:** [January 22, 2024, 11:50pm UTC](https://forum.networklessons.com/t/ios-xe-with-ipv4-ipv6-stateless-dhcp-and-zone-firewall/42470 "2024-01-22T23:50:11Z")
Just because someone might find this useful as I found little help for the stateless IPv6 configuration to get the range from the ISP: Features of this config: IPv4 and IPv6 DHCP from ISP to end user. Zone firewall fo… --- ## [L3 Switch SVI with access port to firewall](https://forum.networklessons.com/t/l3-switch-svi-with-access-port-to-firewall/42325)
**Author:** [@huntleyalan](https://forum.networklessons.com/u/huntleyalan)\ **Replies:** 2\ **Last updated:** [January 22, 2024, 2:24pm UTC](https://forum.networklessons.com/t/l3-switch-svi-with-access-port-to-firewall/42325 "2024-01-22T14:24:27Z")
When dealing with Palo Alto firewalls in HA I would have a L3 ether-channel too a stacked switch with one port going to different switch ports on the stack for redundancy. Then I would create VLAN100 with an SVI for rou… --- ## [How to enable ICMP debug on Layer3 switch](https://forum.networklessons.com/t/how-to-enable-icmp-debug-on-layer3-switch/42263)
**Author:** [@Eyad](https://forum.networklessons.com/u/Eyad)\ **Replies:** 3\ **Last updated:** [January 22, 2024, 7:54am UTC](https://forum.networklessons.com/t/how-to-enable-icmp-debug-on-layer3-switch/42263 "2024-01-22T07:54:18Z")
Could you please help me out here? I have a 3850 Layer switch connected to a core switch. The core switch configured with SVI (i.e. Interface VLAN198 and Interface VLAN199). I can ping the IP address that is assigned to… --- ## [HQoS Example](https://forum.networklessons.com/t/hqos-example/42200)
**Author:** [@pjackmiji](https://forum.networklessons.com/u/pjackmiji)\ **Replies:** 1\ **Last updated:** [January 17, 2024, 6:13am UTC](https://forum.networklessons.com/t/hqos-example/42200 "2024-01-17T06:13:08Z")
Hi Rene, Please would it be possible to provide, insight on HQoS configuration. Regards Prasad --- ## [Example of simple bgp connection with isp and using ospf for LAN](https://forum.networklessons.com/t/example-of-simple-bgp-connection-with-isp-and-using-ospf-for-lan/42028)
**Author:** [@hilmi4618](https://forum.networklessons.com/u/hilmi4618)\ **Replies:** 3\ **Last updated:** [January 15, 2024, 7:18am UTC](https://forum.networklessons.com/t/example-of-simple-bgp-connection-with-isp-and-using-ospf-for-lan/42028 "2024-01-15T07:18:37Z")
Hi, i have been trying hard to figure out how to do this. Is there any Lab example that i can see. simple bgp connection to isp router and how not to received the full internet routes Lan using ospf and to be able to p… --- ## [Leaking specific BGP routes](https://forum.networklessons.com/t/leaking-specific-bgp-routes/41122)
**Author:** [@jbhosle](https://forum.networklessons.com/u/jbhosle)\ **Replies:** 2\ **Last updated:** [January 12, 2024, 12:44pm UTC](https://forum.networklessons.com/t/leaking-specific-bgp-routes/41122 "2024-01-12T12:44:19Z")
I apologize if this question is naive, but how can leaking specific routes influence incoming BGP traffic? --- ## [BPDU Version ID 0x04 SPT BPDU](https://forum.networklessons.com/t/bpdu-version-id-0x04-spt-bpdu/41940)
**Author:** [@juanrequejosilva](https://forum.networklessons.com/u/juanrequejosilva)\ **Replies:** 1\ **Last updated:** [January 9, 2024, 5:15am UTC](https://forum.networklessons.com/t/bpdu-version-id-0x04-spt-bpdu/41940 "2024-01-09T05:15:58Z")
Hi, I’m learning the purpose of each BPDU field(also each option) to create my Anki flashcards, but there is an option in the Version ID(0x04 SPT BPDU) that i don’t find their purpose, please could you clarify in which … --- ## [DMVPN Phase 1 default](https://forum.networklessons.com/t/dmvpn-phase-1-default/41895)
**Author:** [@hemanttolwani1989](https://forum.networklessons.com/u/hemanttolwani1989)\ **Replies:** 3\ **Last updated:** [January 8, 2024, 6:26am UTC](https://forum.networklessons.com/t/dmvpn-phase-1-default/41895 "2024-01-08T06:26:41Z")
Topic DMVPN Phase 1 BGP Configuration: Hub should only advertise a default route to spokes Could you please explain #ip route 0.0.0.0 0.0.0.0 Null0 & Why do we need ip route 0.0.0.0 0.0.0.0 Null0 when we have created pr… --- ## [OSPF-BGP network connection](https://forum.networklessons.com/t/ospf-bgp-network-connection/41775)
**Author:** [@kuriakose](https://forum.networklessons.com/u/kuriakose)\ **Replies:** 2\ **Last updated:** [January 4, 2024, 3:17pm UTC](https://forum.networklessons.com/t/ospf-bgp-network-connection/41775 "2024-01-04T15:17:57Z")
When I connect a OSPF to BGP network. should i need to redistribute both directions always? and also, should I need to use route-map while redistributing. is there any chance for route loop? --- ## [CCIE Enterprise](https://forum.networklessons.com/t/ccie-enterprise/41222)
**Author:** [@itharmak](https://forum.networklessons.com/u/itharmak)\ **Replies:** 1\ **Last updated:** [December 7, 2023, 5:16am UTC](https://forum.networklessons.com/t/ccie-enterprise/41222 "2023-12-07T05:16:42Z")
I have a specific query regarding EIGRP. I’m currently preparing for my CCIE Enterprise exam and aiming to thoroughly review EIGRP concepts from CCNA to CCIE levels. Is it possible to cover all the essential topics by go… --- ## [Abnormal Traceroute with Multiple Interfaces under One VRF](https://forum.networklessons.com/t/abnormal-traceroute-with-multiple-interfaces-under-one-vrf/41037)
**Author:** [@ashish7aditya](https://forum.networklessons.com/u/ashish7aditya)\ **Replies:** 1\ **Last updated:** [November 29, 2023, 5:47am UTC](https://forum.networklessons.com/t/abnormal-traceroute-with-multiple-interfaces-under-one-vrf/41037 "2023-11-29T05:47:39Z")
Hi All, Good day .. I am facing weird issue for which I would like to open a discussion here and want to take your comments/views/feedback .. I have Topology of type - CE1–R1–R2–CE2 @R2: I have created following two… --- ## [Segment Routing, EVPN-ELAN, EVPN-VPWS, VPLS](https://forum.networklessons.com/t/segment-routing-evpn-elan-evpn-vpws-vpls/40775)
**Author:** [@mzqam2009](https://forum.networklessons.com/u/mzqam2009)\ **Replies:** 1\ **Last updated:** [November 14, 2023, 12:19pm UTC](https://forum.networklessons.com/t/segment-routing-evpn-elan-evpn-vpws-vpls/40775 "2023-11-14T12:19:58Z")
Hi Rene and the entire team of NetworkLessons. You guys have done a fabulous job trust me. The explanation level of the protocols and topics that I learnt is very in depth and the understanding level is immaculate. Thank… --- ## [DMVPN using VRF aware ikev2 ios-xe](https://forum.networklessons.com/t/dmvpn-using-vrf-aware-ikev2-ios-xe/40251)
**Author:** [@jamesobradley](https://forum.networklessons.com/u/jamesobradley)\ **Replies:** 2\ **Last updated:** [October 24, 2023, 10:27pm UTC](https://forum.networklessons.com/t/dmvpn-using-vrf-aware-ikev2-ios-xe/40251 "2023-10-24T22:27:34Z")
Hello! Do you have any good troubleshooting references that could help as I begin to tackle the subject of DMVPN using vrf aware ikev2 connections? I have purchased the IKEv2 IPsec Virtual Privat Networks cisco press b… --- ## [BGP Configuration](https://forum.networklessons.com/t/bgp-configuration/40266)
**Author:** [@hemanttolwani1989](https://forum.networklessons.com/u/hemanttolwani1989)\ **Replies:** 1\ **Last updated:** [October 24, 2023, 5:49am UTC](https://forum.networklessons.com/t/bgp-configuration/40266 "2023-10-24T05:49:11Z")
I am confused regarding the solution as traceroute command from Maria to 6.6.6.6 fails. in the chapter. What would be the correct configuration in production/real-time, let’s suppose I have the same topology in my co… --- ## [MPLS TP and configuration](https://forum.networklessons.com/t/mpls-tp-and-configuration/39462)
**Author:** [@jyotsna.t3](https://forum.networklessons.com/u/jyotsna.t3)\ **Replies:** 2\ **Last updated:** [September 30, 2023, 5:58am UTC](https://forum.networklessons.com/t/mpls-tp-and-configuration/39462 "2023-09-30T05:58:30Z")
can anyone explain MPLS TP and configuration. --- ## [BGP Down in GRE VRF IPSEC VPN](https://forum.networklessons.com/t/bgp-down-in-gre-vrf-ipsec-vpn/39600)
**Author:** [@kensmithh95](https://forum.networklessons.com/u/kensmithh95)\ **Replies:** 5\ **Last updated:** [September 29, 2023, 6:18am UTC](https://forum.networklessons.com/t/bgp-down-in-gre-vrf-ipsec-vpn/39600 "2023-09-29T06:18:11Z")
Hello Community, I am having the following issue with a GRE over IPSEC tunnel. The syslogs from the router are indicating this: Aug 15 16:34:59.302: %SEC\_LOGIN-5-LOGIN\_SUCCESS: Login Success \[user: jadams\] \[Source: 10… --- ## [DMVPN attrb - I2 - Please help](https://forum.networklessons.com/t/dmvpn-attrb-i2-please-help/39673)
**Author:** [@jamesobradley](https://forum.networklessons.com/u/jamesobradley)\ **Replies:** 3\ **Last updated:** [September 29, 2023, 5:36am UTC](https://forum.networklessons.com/t/dmvpn-attrb-i2-please-help/39673 "2023-09-29T05:36:22Z")
Hello! I have run into an issue where I’m using DMVPN v3 withouth the ip nhrp shortcut command. I have dual tunnels set to a primary and secondary router and then use nhrp mapping statements for each tunnel. Example: … --- ## [Route Targets and Route Distinguishers - MPLS L3 VPNs](https://forum.networklessons.com/t/route-targets-and-route-distinguishers-mpls-l3-vpns/39562)
**Author:** [@davidilles](https://forum.networklessons.com/u/davidilles)\ **Replies:** 1\ **Last updated:** [September 24, 2023, 6:17am UTC](https://forum.networklessons.com/t/route-targets-and-route-distinguishers-mpls-l3-vpns/39562 "2023-09-24T06:17:30Z")
Hello, everyone! I would like to apologize in advance for creating a completely new post regarding this but I believe that this is a major point of confusion when it comes to MPLS L3 VPNs not only for me but for many ot… --- ## [NAT + access-list level](https://forum.networklessons.com/t/nat-access-list-level/39258)
**Author:** [@barakat\_alhamzi](https://forum.networklessons.com/u/barakat_alhamzi)\ **Replies:** 1\ **Last updated:** [September 7, 2023, 4:39am UTC](https://forum.networklessons.com/t/nat-access-list-level/39258 "2023-09-07T04:39:04Z")
Hello all i want to know if i am on right or no , as i think access-list subjects only in ccna level ?? means nothing about them in ccnp & ccie so anyone read ccna should be sure 100% understand this subject because w… --- ## [Types of IPSec config](https://forum.networklessons.com/t/types-of-ipsec-config/39060)
**Author:** [@bh2o](https://forum.networklessons.com/u/bh2o)\ **Replies:** 3\ **Last updated:** [August 31, 2023, 6:16am UTC](https://forum.networklessons.com/t/types-of-ipsec-config/39060 "2023-08-31T06:16:17Z")
Hi Rene, In your course (Encor) you went through 3 types of IPSec tunnels, could you please verify if understanding is correct? It seems like 2 and 3 are more handy hence used more often ? 1.Cisco IPsec Tunnel Mode Co… --- ## [Question regarding EIGRP convergance over 800ms+ latency satcom](https://forum.networklessons.com/t/question-regarding-eigrp-convergance-over-800ms-latency-satcom/39025)
**Author:** [@mitchellmote](https://forum.networklessons.com/u/mitchellmote)\ **Replies:** 1\ **Last updated:** [August 28, 2023, 8:46am UTC](https://forum.networklessons.com/t/question-regarding-eigrp-convergance-over-800ms-latency-satcom/39025 "2023-08-28T08:46:29Z")
Hey NL, I am having some real world problems with a couple of intermittent satcom links and I want to know what I can do to prefer a route. Currently, I have the most stable satcom preferred using a simple delay metric… --- ## [Rationale behind manual jitter calculation](https://forum.networklessons.com/t/rationale-behind-manual-jitter-calculation/38425)
**Author:** [@molnarattila1221](https://forum.networklessons.com/u/molnarattila1221)\ **Replies:** 3\ **Last updated:** [August 7, 2023, 5:16am UTC](https://forum.networklessons.com/t/rationale-behind-manual-jitter-calculation/38425 "2023-08-07T05:16:37Z")
Hello, I’d like to ask about how to calculate jitter. I know that jitter is variation in one-way delay, and I also know that networking devices can be configured to report jitter. But what I’m interested in is what the… --- ## [Network drive issues on home network](https://forum.networklessons.com/t/network-drive-issues-on-home-network/38066)
**Author:** [@sonti444](https://forum.networklessons.com/u/sonti444)\ **Replies:** 1\ **Last updated:** [July 14, 2023, 5:32am UTC](https://forum.networklessons.com/t/network-drive-issues-on-home-network/38066 "2023-07-14T05:32:23Z")
Hi, Actually users will face network slowness issues on network drives when they are connected to home network along with Cisco VPN. Here this is an issue with all users. is this a bandwidth issue ? Regards Srikar --- ## [BFD Status down](https://forum.networklessons.com/t/bfd-status-down/37888)
**Author:** [@kent2612](https://forum.networklessons.com/u/kent2612)\ **Replies:** 1\ **Last updated:** [July 12, 2023, 5:25am UTC](https://forum.networklessons.com/t/bfd-status-down/37888 "2023-07-12T05:25:34Z")
Any idea why is BFD status down? --- ## [Route not learning on both vEdge device](https://forum.networklessons.com/t/route-not-learning-on-both-vedge-device/37788)
**Author:** [@sumitsinha4u](https://forum.networklessons.com/u/sumitsinha4u)\ **Replies:** 1\ **Last updated:** [July 5, 2023, 12:52pm UTC](https://forum.networklessons.com/t/route-not-learning-on-both-vedge-device/37788 "2023-07-05T12:52:37Z")
Lets say we have two edge router. vEdge1 and vEdge2. I configured vEdge 1 through template and Evdge 2 via CLI. Design is VERY much similar, what we are learning here. Problem - I don’t see route of connected switch’… --- ## [Root Guard & BPDU Guard](https://forum.networklessons.com/t/root-guard-bpdu-guard/37799)
**Author:** [@hemanttolwani1989](https://forum.networklessons.com/u/hemanttolwani1989)\ **Replies:** 1\ **Last updated:** [July 3, 2023, 2:59pm UTC](https://forum.networklessons.com/t/root-guard-bpdu-guard/37799 "2023-07-03T14:59:15Z")
What’s the difference between Root guard and BPDU guard? Can we say Root guard blocks only superior BPDU and allow Inferior BPDU and Interface enter into Root Inconsistent state while the BPDU guard blocks superior and I… --- ## [Cisco ISE personas](https://forum.networklessons.com/t/cisco-ise-personas/37617)
**Author:** [@michael.s.taylor](https://forum.networklessons.com/u/michael.s.taylor)\ **Replies:** 1\ **Last updated:** [June 23, 2023, 5:05am UTC](https://forum.networklessons.com/t/cisco-ise-personas/37617 "2023-06-23T05:05:42Z")
Can I remove PxGrid nd will it free up resources if I do? --- ## [Subscriber templating](https://forum.networklessons.com/t/subscriber-templating/37478)
**Author:** [@reiniko](https://forum.networklessons.com/u/reiniko)\ **Replies:** 4\ **Last updated:** [June 22, 2023, 9:04am UTC](https://forum.networklessons.com/t/subscriber-templating/37478 "2023-06-22T09:04:10Z")
Greetings, I’m trying to set up a Cisco 4321 which has a new version (17.03.04a) which I’m not yet familiar with - my previous experience is with version 3.16. I found in the running config the command “subscriber templ… --- ## [Is it possible to set the time for Debug to Undebug?](https://forum.networklessons.com/t/is-it-possible-to-set-the-time-for-debug-to-undebug/1855)
**Author:** [@rajamohanmeek](https://forum.networklessons.com/u/rajamohanmeek)\ **Replies:** 6\ **Last updated:** [June 17, 2023, 7:01am UTC](https://forum.networklessons.com/t/is-it-possible-to-set-the-time-for-debug-to-undebug/1855 "2023-06-17T07:01:35Z")
HI Sir, could you please help me out in debug command. is it possible to set particular time to Undebug all or particular debug command . thanks from Rajamohan Reddy. [Previous page](https://forum.networklessons.com/c/routing-switching/34.md?page=2) [Next page](https://forum.networklessons.com/c/routing-switching/34.md?page=4)