Routing

Resolved! Can't establish a communication via OSPF

Hello, this is my frist time psting here, so forgive me if I break any rule. I'm trying to establish a communication between PC0-PC2, PC0-PC3 and vice versa, however, for some reason, my ping won't go through. I've checked my OSPF configuration a few...

Resolved! Meraki DHCP server gives addresses from the wrong pool

Hi all, A client of mine has an MX100 firewall, on which 2 VLANs are configured on the inside. On each VLAN interface a DHCP pool is active. Now it _seems_ that something strange is happening.... Could it be, anyone ever heard of, that when on the fi...

No Working ESP ASR1002

HiI have a problem with a brand new ASR1002:Router#show facility-alarm statusSystem Totals Critical: 2 Major: 0 Minor: 0Source Severity Description [Index]------ -------- -------------------Power Supply Module 1...

PIM-SM over DMVPN and NBMA-Mode

Hello all,My main question is when exactly do we need pim nbma mode.Specifically, it seems obvious to me that when the sender and the receiver is between spokes, the RPF will fail because the incoming interface and the OIL is the same hub dmvpn tunne...

Resolved! IPsec VPN issue

Hi all. I have ISR1111 behind ISP's NAT with dynamic external address (from RFC1918 address space) and VPS with static routable address. For now I try to create route-based site-to-site IPsec tunnel between these 2 boxes but from Cisco side I have so...

BGP neighborship with VIP on Nexus

I have two Nexus 3K in vpc and one stack (of 2switches) connected to it.Is it possible to run bgp between a stack and Hsrp VIP on nexus?The basic diagram is attached.

Hairpin / U-Turn NAT on 897VA

Could someone tell me whether it is possible to configure what I understand is called 'NAT Hairpinning' on an 897VA?The outcome I'm trying to achieve is for an internal host to connect to another internal host but by using the dynamic public IP addre...

Internet slow and disconnecting

Dears, need help regarding my network as attached internet/lan slow, disconnecting , not able to browse some websites

Networking and F5 Load Balancers

Good afternoon, Currently in a situation where a client is sending me tcpdumps every day. They state that they experience intermittent 400 bad request responses. I don't see how this is a networking issue since a TCP handshake is consistently establi...

MPLS WAN default route migration ?

Hello we have an MPLS layer 3 WAN network using BGP. Approximately 50 physical sites belong to this network.I currently have a router at one site advertising the default route to all other member sites of the MPLS WAN.I now want to migrate to using a...

Bonding 2 x ftth 100 mega

I have a question: a bonding with 2 100 mega fttc which devices should be done? Is a Cisco asr1001 / 1002 ok or even lower bands like the 19xx / 29xx?

Resolved! GLBP and Loop-Free Topologies

I was reading material for my ENCOR studies, and I came across this section: "Gateway Load Balancing Protocol(GLBP) provides greater uplink utilization for access layer-to-distribution layertraffic by load balancing the load from hosts across multipl...