Switching

Hi, Here is my problem : I can send emails with exchange but I do not receive any mail and I do not have access to owa from the outside .. Do you have any idea of ​​the problem?

                   Hi,i am installing a cisco 4500X switch and the power cord required is a c15 - c14 because of the pdu we are using.The one that has shipped from cisco is a different connector and cannot be used. i wanted to find out if CAB-C15-CBN...

Hi, I have a problem with port forwarding. Is the problem with my ACL? Does the rest of my configuration look good? Thank you and good day !

Good afternoon! does not work ipsec site-to-site and between cisco 881w & tmg 2010.Cisco 881W config:ip name-server 8.8.8.8ip cefno ipv6 cefcrypto isakmp policy 1 encr 3des hash sha256 authentication pre-share group 2 lifetime 28800crypto isakmp key ...

Hi can someone help me i'm novice on cisco product i've 3 switchs SW1 SF300-24P IP Phones Fe1-Fe12 ->192.168.69.x AccessPoint Fe13-Fe15 ->192.168.2.x AccessPoint Fe16 ->192.168.1.x VoIP DHCP Ge1 ->192.168.69.1 SW2 SG200-26 Computers Ge1-Ge12 ->192.16...

Follwing my last question I can't communicate  beteen the lans that are separted by the Frame Relay Switch/Modem. Why? Here is the link to the pkt. It  iwas created by 6.3 Version (Only Packet tracer 6.3 and above will open) https://drive.google.co...

Community, Im currently studying for the CCNP SWITCH exam and had a question regarding the RSTP Topology Change mechanism. I understand that the only instance where a TCN is sent from a switch running RSTP is when a non edge port goes forwarding. Th...

hi, between two routers: R12------R10-------Host1 R12 and R10 are on subnet 10.0.102.0/24 R10 loopback is 10.10.10.10/32 Host1 is 10.0.10.100 I want to see debug ip icmp, but it does not show me anything when I: R12: R12#ping 10.10.10.10Type esc...

Quick backstory: We have two public networks (A and B). R3 is actually a FirePower 4110 and is NATing for A and B.  R1 and R2 are ASRs running BGP and iBGP. Network A is a Class C and R3, R2, and R1 are connected on it via a switch.Network B is a /20...

I hope this to be a fairly simple question --I have a live 28port Catalyst 2960S switch. By live I mean that there is an essential piece of equipment plugged into this switch that can suffer little to no downtime. Over the course of time the number o...

Hello,I just received a refurbished Cisco 861 wireless router and have been trying to configure it.  I have followed the steps for setting it up, but every time I type a command with dot11, I get the invalid input message.  It appears that there shou...

I have 4 vlans currently, 100,200,300,400. I have 2 offices and they both used the same numbers, but now I need to change on office because of a DR system that we are putting in. I need to change one office to VLANs 111-114. I understand that I can't...

Hi guys, I am trying to download the Nexus 1000v. If I start here https://buildprice.cisco.com/N1000V/gettingstarted and select the free download, I end up here https://software.cisco.com/download/release.html?mdfid=282646785&catid=268438038&software...