Hello,I was scanning a portion of my network for available addressing and active devices. I did a scan of the 10.105.127.0/24 network and I noticed that the vlan interface on the 6513 was sending replies for non-existent devices. For example a rep...
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Forum Posts
I receive the following yslogmessage from my corerouter(Catalyst6509)Nov 10 18:00:00 core-gw.uni-koeln.de 17708571: Nov 10 17:59:59 MET: OSPF: Send with youngest Key 0Nov 10 18:00:00 core-gw.uni-koeln.de 17708572: Nov 10 18:00:00 MET: OSPF: Send with...
Hi all, I was going through ccna wireless exam certification and came through the following paraAPs offer the ability to use more than one SSID. This would let you offer a Guest Network and a Corporate Network and still use the same AP. When the AP h...
Hi,We currently have 3750 switch stacks for our office LAN (6 switches in each stack). These are now end of life/support and are failing on a regular basis.We are looking to replace them and I am just wondering what people would recommend to replace...
Resolved! weird PVST issue
Hi everyone,I am getting loop in my network inspite of running pvst.PVST is running on two switches that are connected to each other through etherchannel po1.on one switch root port is po1 as it priority is high. similar configuration is done on othe...
Resolved! Core Network Design
Hello,We are in stage of designing the core netwokring for one of our customer.Our customer is a Finance Institute, having two building. Each building has two 6509 core switches. Total we have 4 core switches. Both buildings are connected to each oth...
Resolved! 3750 inter vlan ok but no internet
Hello everyone,I have pretty basic setup. I'm desperate here and need assistance. My 3750 is ipbase ios 12.2. I have been trying to find solution for a week now.I got 2 vlans 10 and 20 and one layer 3 port 10.1.10.254 connected to internet router 10...
Doing a data center deployment with 6500s at the core, Nexus 5548s at the distribution layer. There's also going to be some Dell, HP, and F5 gear in the mix, so I'm committed to running MST as the primary spanning-tree flavor for the best compatibil...
Hello All,I was hoping someone could assist with an issue that our Exchange team are having, specifically with replication traffic traversing our DC to DR site.The infrastructure consists of a Layer 3 data centre and a disaster recovery site, so esse...
I have 1 2960X located in 1 IDF and 1 2960X located in a 2nd IDF. I have dual fiber connections from each 2960X running back to a pair of interconnected Nexus 5596UP core switchs. I have configured 2 ports on each Nexus as port-channel (18 & 19) with...
Here is a good one. I need to find the polling IP address of an L2 switch (3560V2) in my network. I will describe the portion of my network in question. There are multiple edge devices connected to an L2 switch (3560v2). The L2 switch uplinks to a co...
I work for a very old company that owns a class B IP range. I've been given the task of moving our lan addresses to class C.I was going to start with the following approach;- create a new dhcp pool on existing win 2008 server with class C range- crea...
Resolved! dhcp relay + vlans
I work for a very old company that owns a class B IP range. I've been tasked with changing our lan ip addresses to class C as they plan to sell the class B addresses.My plan was to add a new IP pool to our existing dhcp server (win 2008) for a new v...
Hello,We try to activate multicast here and it does not seems to work properly. There is our configuration : Core : 4506 with L3 routingDistribution : 3750 L2 onlyAccess: 2950 L2 onlyOn the 4506 we have those commands configured : ip multicast routin...
Currently Being ModeratedXerox 5745 Printer Reboots at 75% when connected to Cisco 2960Hi,We are having a problem with our Xerox 5745 multifunction Printer...This problem had been forwarded to Xerox, but they claim that a problem was caused by a powe...
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