I’m designing an OSPF network for a new VPLS cloud. I’ve done this before using a /24 for the interface uplinks to the VPLS. I’m curious if anyone has experience with larger (or even this large) of a subnet for OSPF broadcasts. We have around 100 rou...
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I have knowledge of theory and facts in terms of networking, but not so much practical knowledge because nearly everything I do is new to me (due to lack of experience.) We currently have an ISP managed router where our internet access and an MPLS ne...
A 3rd party has asked me to open a range of ports for a new phone system they are installing. However, I can't figure out how to open a range of ports on my Cisco 1921. They are asking me to open ports 10000 to 20000 I have done this for port 5060 ...
In our DC we have connection between TWO devices via 10Gbase-SR-S module. |-------------| |---------|| ASR |-------------------| Nexus3K |------> Link Going to other devices to reach to internet.|------...
Resolved! Cisco Router 4221 - IP SLA ICMP-echo
Hi to cisco community, I would like to ask, Is there someone used the IP SLA icmp-echo in router 4221? Do we need a license to use it?way back cisco 1900 to be able to use IP SLA echo, it's require to purchased Data license. same to 4221?or 4000 seri...
Resolved! ISR4400 Router Software upgrade 16.9.3
Hello TogetherI need to upgrade an ISR4400 router to Fuji 16.9.3 software version.What do I do?With the switches (3650) the command was:"request platform software packages install..."So far I have only seen the possibility to change the bootvar:"boot...
I am currently using prepend to influence my inbound routing from 3 ISP. However, after speaking to one engineer he mention I should look into "BGP Communities". I have done some reading, and it appears to be a better solution then my multilayer prep...
Resolved! Cisco 2951 - unknown Error in log
Hello, since two weeks i have a little problem with my Cisco 2951. My problem is, that i get the following error from my Cisco router every 10 seconds: *Mar 17 12:14:19.728: %SYS-2-BLOCKHUNG: Task hung with blocking disabled, value = 0x1. -Process...
Resolved! Routing Issue - iBGP Peering
Dear team, I'm currently experiencing some odd behavior on my iBGP routing and could use some assistance. The goal is to reach i.j.114.170 from every router. I'm attaching a drawing with all my routers as they are connected.Below are the troubleshoot...
I have just started to setup the ISR 4331 following the Cisco white paper. After a lot more work than just this.ProcedureStep 1Connect the RJ-45 end of a serial cable to the RJ-45 console port on the router.Step 2After the device initial configurat...
I have a customer that is requesting to limit/shape a specific application (tcp port 12000) to 10 mbps at all times even if their total traffic has not reached the max bandwidth of 50 mbps. This is what I am thinking: ip access-list extended SNAperm...
Resolved! BGP peerings
Hi - basic question, but I am rusty...can one have two physical BGP peerings between two routers? I know one can LAG them up and use a loopback address, but what if one wanted to maintain two separate physical peering links?
Resolved! same site of Origin value on PE
hello to allsuppose we have multiple PE , then each two of them use soo but same valuefor examplewe have PE 1 and PE 2 : PE1 ->CE1 & PE2->CE 2strange thing which i've not seen before in both PE used same soo values for examplePE1)neighbor 1.2.3.4 so...
Resolved! OSPF type-7 to type-5 translation issue
I faced with some strange behaviour and I can't explain it to myself.On scheme R2 doesn't translate type-7 192.168.33.0 to type-5. But type-7 1.1.1.1 is translated.OSPF is enabled only on interfaces in colored rectangles and R1 redistributes connecte...
Resolved! Need help with VPN NAT issue
NAT sometimes is the bane of my existence. I'm trying to setup a vti site-to-site vpn with cisco routers. The VPN connection comes up fine. My problem is that i'm using the same interface for internet access as well. my endpoints can reach the intern...
