Hello all, We came across a really bizarre issue. We have been doing wireshark captures to determine why were are getting outages. We have devices that are basically getting hit with mutlicast traffic they did not subscribe to and when this happen...
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Here is a OSPF topology without a individual router that specifically runs a area 0. I couldn't find an example like this with Google search, so hopefully it works for someone that searchs kinda design. Best regards.
Resolved! L3 SVI and L2 VLANS
Hallo,This is a rather basic question but I will ask it anyway I copied the working running configs from a faulty 891 Cisco router to another one. Initially, it didn't work (clients were not getting an IP even though the VLAN was pingable) and on tr...
hi, during shaping policy config, router itself calculate bc based on cir. And there is a minimum value of bc .... it is calculated based on tc of 4ms. Is it possible to use lower value of tc .... so bc could be smaller? br
Are there any different requirements or variables when Configuring OSPF Key Chain auth from IOS to Nexus vs IOS to IOS? I am having issues doing just that on Nexus to IOS. All the configuration options are present on both OS however the authenticatio...
Resolved! Can't SSH into Cisco 891 from outside
Hi. I haven't touched Cisco IOS devices in a few years, so maybe I'm just rusty. Anyway, a customer of ours has a Cisco 891 router on-site which I need to be able to manage remotely. I can SSH into it from the inside but not from the outside. The WAN...
Hi,How to configure a router interface to allow a specific VLAN traffic only...I have added an image in which I need to allow VLAN 2 &3 through the gigabit link and VLAN4 through serial link....
I want to know how to connect A dc power supply to the switch as it requires -48v without damaging the device
hi, I have 1G line I need to test for performace. On remote side line is terminated on ISR4451 router. Is there some kind of native reflector on IOS I could use on remote side for this? I know about guestshell and iperf, but iperf needs to be additio...
According to the picture single router connected with 2 ISP. 1 link 1G and another 512kbps. No routing protocol are running. Is it possible to 70% traffic goes through via 1G link and 30% traffic will go through 512kbps link, without running Eigrp, o...
Hi All, Due to some requirement I need to prepend the approx 12 AS-PATH in BGP advertisement but in ASR router there is limit of max 10 ASpath only. Requesting if any one can help in this regard. Regards, AKK
Resolved! OSPF on vlan interfaces
Will this configuration work for ospf routing on a vlan interface on a 3850 L3 switch? Never done it on a vlan interface before but having trouble getting it to work in GNS3. interface Vlan100ip address 192.168.100.1 255.255.255.0ip ospf network br...
Hi the Cisco Team,On a network design, I have two routers ISR4321 with Cisco IOS XE Sofware.The first is on version Version 15.5(3)S4bThe second is on Version 16.9.5On the first one, I can use the ip nat enable command on the Conf/Interface levelOn t...
Trying to figure out why my connection from the ISR4321 is sooo slow. I tested first with plugging my laptop directly into the modem. From the modem directly, I'm hitting speed of up to mid to high 90's. When I plug my 4321 into the modem and use the...
Resolved! Changing the OSPF Area 0 For Another
Hi Community, the best of internet !!!! Dear all, let me to open this new topic We have a project to change the OSPF areas of a Network of switches/routers currently all in area Zero (0). The network was growing and now is the time to put things...
