02-01-2008 03:32 AM - edited 03-05-2019 08:52 PM
Hi Folks,
Appreciate any help on a Vlan issue.
Basically have a vlan configured on a MSFC
Have a number of machines connected to switchports in this vlan. When we power up the machines they can not connect to anything outside the vlan. Machines get IP's via a helper address and can ping the default vlan gateway. After roughly 15-20 minutes, comnnections are allowed out. I have no ACL blocking in place. This happens everytime we power the machines down for a while and restart. There is nothing local on the machines blocking connections (firewall,AV), I have tried various builds and it makes no difference. The switchports are only configured for access to the said vlan. There is no issue with spantree or portfast settings. Help
02-01-2008 04:05 AM
Are you using port security on that VLAN?
Also: check the consistency of the MST-VLAN mapping on all the switches you have, and check the VLANs allowed on each of the trunks - they should correspond to whole sets of MST instances, nothing less, nothing more.
Kevin Dorrell
Luxembourg
02-01-2008 06:06 AM
Not using port security, using an old version of catos on the 6500, doesn't have the spantree mst command
02-01-2008 06:17 AM
I'm sorry. What on earth made me think we were dealing with MST? It must be Friday again!
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