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Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...

I have a LAN that has uses two 4500s and multiple lower-end switches. The 4500s are doing inter-vlan routing. Some of the lower-end switches use classic spanning-tree whilst the rest use RSTP. If I am adding a new switch to the network with trunk con...

tobin_jim by Level 1
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Hieei got    Below SwitchSwitch   Ports  Model              SW Version              SW Image------   -----  -----              ----------              ----------*    1   12     WS-C3750G-12S      12.1(19)EA1d            C3750-I9-Min the message loggi...

I would really like to upgrade this switch before a reinstall it.. The software is quite old.. based on the current IOS installed, can someone point to the best version/package to download for this switch.Thanks in advancecisco WS-C3550-24-PWR (Power...

HiI've got a problem with static nat. I made static translation like this:ip nat inside source static 192.168.0.100 80.80.80.81and I can't get access to 80.80.80.81 from local network. When I want connect via hostname (like blablabla.com) it's ok, bu...

goit by Level 1
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This is the physical topo of one of the VDCs:2 4900M serving as core in the top.2 Nexus 7010 down the core in two data centers, with L3 for default gateway in production vlans.4 Nexus 5010 with 2 Nexus 2248 connected each of them.The logical topo:vPC...

JPavonM by VIP
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HiI have a strange problem:We have a VSS with 2 6509E and 5 4506E with SUP6-E. The 4506 are connected with two TenGig links (one to each 6509) each. The two ports build an ether channel.Everything works fine but one of the TenGig links is not comming...

tgusset by Level 1
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Hi all,on my 6509 i have configured Vlans, on Vlan 70 i have my DNS Server (192.168.70.11), DHCP ext. and on other separate Vlans i have my hosts.I need to configure an extented ACL so as to permit host (server 2003, ex.192.168.80.2) on Vlan 80 to ac...

Hi!I have a routing-related problem on my Cisco ASA 5540.I have configured several interfaces on the appliance. Two of them face to the local subnets.> interface GigabitEthernet0/0.252 > description -= Catalyst 6000 =- > vlan 252     > nameif INSIDE...

We have a L2 switch C2950 in production. Please check the attached file for "Show version" output. On all the LAN ports the command "no IP address" is configures as show below.interface FastEthernet0/1 switchport access vlan 30 switchport mode access...

avilt by Level 3
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We have a 4510r-E core, been up and running for 2 years. We also utilized about a dozen linksys and cisco 5 port workgroup hubs/switches. Saturday night every one of the hubs/switches stopped working and would not allow traffic through them. I've see...