Hello everyone.I am having trouble configuring IP phones with DHCP. Even though I have the pool and I can assign IPs via DHCP for all other VLANs, it seems that something is not working correctly in the case of VLAN-40, which is the one of the phones...
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Hello, kindly i need your support as we connected GTM to discover global DNS from different two ISPs on two router each router have two VRFs, on first Router first VRF the main and second is the backup, on the second router the second VRF is the main...
Resolved! Taildrop avoidance for critical traffic
Hello Experts , I have a critical application traffic which passing though my Cisco ISR 4321 and i noticed that some packets being dropped as Taildrop , Please find below output from packet-trace debug : sh platform packet-trace summary | i Gi0/0/...
Hi AllI am looking at configuring qos per tunnel on my dmvpn.I have a couple of questions.1.I assume the policy applies to the hub end only?2.As there is only 1 MGRE tunnel on the hub, how can multiple qos policies be applied?3.what about spoke to sp...
I have the following topology:IOU3 is the ABR, and is summarizing Area 0 prefixes as a summary route 2000::/16 into Area 1.IOS version: 15.5.RFC1583 is ENABLED on IOU3 (and everywhere else), which means that the cost of the summary route should be ba...
Hello everyone.I’m currently trying to upgrade my compact flash card memory from 256MB to 1GB. I backed all files on the compact flash card using TFTP transfers and archive tar. So far so good. However 2 things:- Once I put the new compact flash card...
Hi , I'm looking for help on the following issue, i'm CCNA certified since few month, and i have an issue on ISR4451-k9-RF, it seems that my customer is facing issue with IOS IP base, On product hasn't the same type of IOS, see attached screenshots ...
The documentation states that unencrypted throughput is unthrottled and encrypted throughput is controlled by license. What does encrypted throughput mean in terms of the 8200 throughput license restriction? I've read the documentation and I'm still ...
Hi, Does anyone know how to get ADSL working through a c1117? We upgraded to one from a 1841 so I just copied the config over but the dialer wont get a IP address from the ISP. If I look at the dialer int on the 1841 it has a public ip assigned to it...
Hi All, am using the following topology for BGP testing , but am not able to establish bgp neighborships between R1/R3 and R2/R4. The sample config/output is mentioned below:- ****************************************************** R1#show ip bg...
Dear @I am experiencing an issue with VXLAN static ingress replication on a pair of Nexus switches running NX-OS 7.0(3)I7(2). The setup consists of two leaf switches (NX-6 and NX-7), where VLAN 100 is mapped to VNI 5000 on both switches. Each switch...
hello,I am facing with a big problem in my cisco switchI have cisco 6880 switch with an OSPF link to cisco switchesIt has been working fine for years and all of a suden the process went down, and is stuck in EXCHANGE/EXSTART statesI have another OSPF...
Hello.I currently just got a Cisco 2821 with CallManager(8.6) installed and IOS(15.1M) and ADVENTERPRISE installed. It has 512MB of DRAM and 256MB of Compact Flash memory. This device will solely be used for VoIP.I was wondering if it would be enough...
Hi,I'm looking for a similar command in IOS to the "alias" command for PIX. I have a setup where my internal clients need to reach a web server in the DMZ. The DNS response is the outside (official) IP address of the web server. I would like the Rout...
Resolved! IS-IS Single topology vs Multitopology
Hi Guys, Can anyone explain to me in simple terms what the difference is between IS-IS single topology and multitopology? The documents available online are very confusing and conflicting, even cisco's. I have tried to simulate both on my labs and ca...
