We have a small network of 100 devices, running OSFPv2.  On occasion, I'll have a "guest" router added to the network, at which time, I want to delete all routers routing-tables, and rebuild from scratch.  I don't want the guest having the ability to see older routes, or interrogate others.   This might be overkill, but it is what the customer wants.   Any thoughts? ... View more

I have a legacy configuration, where my switch is connected to a firewall, via a trunk.   The firewall is showing a lot of overruns. The switch config is: Int f0/7   switchport access 52   switchport trunk native 52   switchtrunk trunk allow vlan 52   switchport mode trunk I understand the "switchport access 52" command is meaningless, since it is manually set to trunking. And I know that the "switchport trunk native 52" is bad, but I'm not sure why. Can someone explain the practical effect? Thanks. ... View more

I want to launch an extended ping, that goes once every 5 seconds, from the local router to the remote router.  I want to use this over 24 hours, to count the number and time of dropouts (the link is usually up).   If I launch the PING command from the router, it flies through the ping responses, and doesn't parse them over one second intervals.   I know I can set it to 5 second timeout, but that is relevant only when the link is down.  If the link is up, it goes through 100 pings in two seconds.   Is there a simple script I can write?   It's a 3800, ios 12.4. ... View more

I have two ASA 5510s connected over a WAN, running IPsec (AES-256).   I'm not getting any errors, but the application is getting clobbered.  The application is using Linux IPsec.   Where do I start looking, in regards to packet capture, MTU problems, MSS issues, etc? Thanks. ... View more

We are trying to set up Splunk, on a GNU server, running with rsyslog.   Splunk doesn't see the data, and I'm reasonably sure it is because we are not set up correctly with the rsyslog daemon.   I can't find a file anywhere that has the data from the switch.   I set up the switch with a VLAN1 ip of 10.10.10.1, with a default-gateway of 10.10.10.20, which is the IP address of the GNU server.  I have both logging and traps set to send to 10.10.10.20, and I'm logging to the  buffer at level 6.  The switch can ping the server, and vice versa; there is no firewall or other devices.   What do I need to do to the rsyslog.conf file?  and do I need to create a logging subdirectory? Please explain in detail, that would make things more helpful.   Thanks. ... View more