Routing

Hello! I'm currently practicing on configuring multi area ospf but their is a problem.In the 172.16.56.0 subnet,the main router isnt getting any area routes but the area border router connected to it does. They are ospf neighbors,in the right subnet,...

Hi,I'm working on a C3945e with a EHWIC-VA-DSL-M installed. It's configured as an Ethernet Interface interface Ethernet0/2/0 description C3945e-1/Centurylink VDSL2 link ip address (PUBLIC_IP_HERE) 255.255.255.128 ip flow ingress ip nat outside i...

Hi all,One of the two ISR4431 started to boot into errors after power outage. I can enter ROMMON, able to boot many different IOSes (including external TFTP download via Gi0 interface), but all of them got stuck & reboot with the messages below (more...

We have had a Cisco 867 router on  our DSL line for 10 years without problem. It provides NAT to the LAN and acts as a DHCP server.We tried to replace it with a C1117-4P with an almost identical config but after doing so started receiving spam voip (...

The R1 and R2 routers are running eBGP on the WAN side (left) and iBGP on the LAN side (right). In addition, StaticRoute for LAN is configured and advertised by BGP to the WAN side.The eBGP neighbor of R2 uses Path prepend to prioritize routes via R1...

Hi Team, I am trying to establish ipv6 bgp neighborship in ASA but it is stuck in 'NoNeg' stateASA-1# show bgp ipv6 unicast summaryBGP router identifier 1.1.1.1, local AS number 100BGP table version is 1, main routing table version 1Neighbor V AS Msg...

ive got a problem i cant seem to figure out. When my Ipsec tunnel is built it makes a new phase 2 connection every 60 seconds. 1.1.1.1 = Cisco Router2.2.2.2 PfSense Router----- Connection configuration -----1.1.1.1 => Internet <= 2.2.2.2-------------...

Hello,I have a question on Cisco 8000V router.Does the Cisco 8000v Advanced license include DMVPN functionality?Also, are there any limitations regarding site-to-site VPNs?Does it support firewalling features, such as NGFW capabilities?Additionally, ...

 Hi there Im trying to do a test of RTB destination mode on cml, I use the topology that you con see below.The goal is the AS3000 can't reach the server 1(10.100.44.2) using RTBH.I configures the black hole route en both PE (192.168.6.6/32 to null 0)...

Hello guys Hop all are doing will. Suppose two ISP links(ISP1 & ISP2) are terminated on a router and by default incoming and out going traffic are using ISP1 link but we need to manipulate this traffic our requirement is that when traffic come in our...

I have a problem, I have a modem that is connected to a Cisco router, can I connect remotely via SSH?

Hi AllI have a lab setup using DMVPN phase 3 with eigrp, a hub and 2 spokes.If I shut down the hub external IP, the spoke to spoke traffic fails within a few seconds.Is this normal? I know for redundancy you can have 2 hubs but would it still affect ...