Resolved! ARP
what is the function of ARP ? convert MAC to IP or IP to MAC ?
Forum Posts
Resolved! DHCP Failed
I create topology like this belowLAB 7to implement the protocols1. VLAN 2. TRUNK 3. INTERVLAN ROUTING 4. DHCP SERVER 5. DHCP RELAY 6. OSPF 7. STP 8. HSRP 9. VTP 10. RIP 11. EIGRP 12. BGP But for PC & Laptop failed to get DHCP, I Already trace my con...
Resolved! SNMP
what are SNMP manager softwares. can anyone name me some of them ?
Resolved! OSPF RID
when configuring OSPF on any router, RID must be the interface highest IP address or highest ip address of logical interfaces. If you have sub interfaces and loopback interfaces which would be the RID?
Resolved! UDP VS TCP
How does TCP differ from UDP? (Choose two.) A. TCP provides best effort delivery.B. TCP provides synchronized communication.C. TCP segments are essentially datagrams.D. TCP provides sequence numbering of packets.E. TCP uses broadcast delivery. wh...
Hi, We have an issue where some of our 3850's will mark the configured RADIUS server as dead and this causes the Service Policy on the switch to fail the port in open mode. Once the RADIUS is available again the switch will not mark the server alive ...
Resolved! core switch redundancy
Hi, school with around 800 users having one core switch 6509-E sup-720 (inter-vlan routing) collapsed core design connected to - 30 layer 3 HP switches with 10G and 1G backup links - 2 juniper WLCs 120 APs and VMware servers looking for a solution to...
Hi, Please I have an issue with my 3750 E, I have configured IGMP Snooping on my switch, but when i connect a multicast server, I receive the corresponding traffic(225.100.100.6:8000) on another port of my switch normally. But when i type the co...
Hello, I have two Nexus 5672UP switches and have redundantly connected my firewall to both of the switches using a trunk which serves as a firewall-on-a-stick for multiple VLANs. Now when I need to reboot my firewall I would like to have the netw...
Hi everyone, I have a problem with my Nexus 9000 architecture in the vPC domain. I have two Nexus joined in one domain and connected to each other with two 10Gbits peer links and a peer keepalive via supervisor with a dedicated management switch. the...
Resolved! Catalys 2960X some Ports without PoE
Hello together I have a strange PoE problem with two WS-C2960X-48LPD-L switches (IOS 15.2(2)E5). I have on some (not all) switch ports no PoE support. The most strange thing is, that i have no log entry about a problem or somthing like that. Also af...
hi guys,am a new person in the forum.i pased my ccna months and i feel join the room will enhance what i know already
Hello All, I need a little assistance with getting my vlans from the switch to make it to the router and back - or simply put, my vlans (other than the default) cannot reach the internet. On the switch side, I have changed it to router mode (layer 3)...
Im beginning my CCNA training again after taking time off from Cisco to focus on other things. I have a very basic packet tracer set up which involves two routers talking to each other which two switches follow along with a PC at the end. I've set up...
Resolved! sg300 inter vlan
Hi all, i recently installed and configure a new sg300 switch , all my vlans works fine and inter vlans. vlan 1 is on 10.10.10.0 /25 vlan 20 is on 10.10.10.128 /25 vlan 30 is on 10.10.11.0 /25 vlan 40 is on 10.10.12.0 /25 vlan 15 is on 10.10.13.0 /...
