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...
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Forum Posts
Hi Seniors, I need some info about secondary ip....like....in which circumstances is it being used.I am not looking for the config method...but some theory behind the evolution of sec.ip
Resolved! campus design
Hello all,I'm relative new in cisco networking and i need some clarifications on cisco hierarchical campus network design.1. Why do i have to use L3 switches on the core and distribution layers; A router implementing CEF doesn't performs switching in...
I posted up previously about this issue.I have a Cisco 2500 router and I'm trying to disable or bypass the password. I've learned that Break is disabled. I've been told you can jumper some pins on the circuit board. Can someone tell me what pins need...
newbielogged into web interface to change ip address from 192.x.x.x to 10.x.x.x. It works for a few minutes then reverts back to 192.x.x.x address. Cant telnet because there is no password set.not sure what to do,thanks
I have a couple of Cisco 871 routers (ethernet WAN, 4 port ethernet LAN) that I will be using as Internet gateways to an internal network and a perimeter network with web, ftp and other specialized servers.I've been reading through the documentation ...
Resolved! 3750 cross over cable
Hi I have two 3750G switches that I need to uplink to each other…I’m using a crossover cable but they won’t link any faster than 100 is it possible to get them to link at a 1000 with a crossover cable?
Dear Sirs, Which place does the memory consume for EIGRP routing?For instance, how many bytes a route do you consume?Best regards,
Resolved! Having problems with certain sites
Wasn't sure which forum to post this in...hope this one is appropriate.I have a PTP T1 between two locations with ADSL being fed through the T1.We recently got it going after getting the telco to fix some wire pair problems in the repeaters.However I...
hi, my remote sdm is now only working in a temporally flash and any change i make is not actually written to the config... how can i turn to the real editing mode?thanks.
I am relatively new to routing so please excuse what may seem like some dumb questions.I'm trying to get my hands around what happens with my Cisco 871 router when working with a /28 subnet of public IP addresses bridged by my ISP through a DSL route...
Currently at client site, client has a 1721 router but misplaced their cable. Bought a QVS CC439 DB-9 converter to access router. However, need pin loading layout. Does anyone know what it is? Thanks in advance! xposted
First off, I have learned I do not know as much about routers as I thought I did - and that wasn't much.My situation. We have a 1760 router with a T1 WIC and 4ESW which is not being used.We have a /29 subnet and 4 servers with public IPs and one ser...
I have all DHCP clients and server on same VLAN in the same subnet on CAT4507.I can also ping DHCP server, but the clients are not getting IPs. I've checked DHCP config on server seems to be OK. When I turn on debug I get following:1w3d: -----Additio...
Resolved! spanning tree issue...help needed
Hi...I think this is a spanning tree issue. We have a basic setup of One 6509 core switch and 33 2950 switches connecting to it via SINGLE plinks, no redundant paths. Some of the 2950s are stacked together using fiber patch cords and GBICS. We also h...
Resolved! Weird Config
I have two 3750’s connected by a dot1q trunk and a switchport access link (see Visio attachment). I want all vlan traffic except vlan 100 to route through the trunk and only vlan100 to route through the switchport access link. Will this configuratio...
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