Routing

Troubleshooting EIGRP

René Jorissen on June 25, 2008 0 Comments • Tags: #active #black #default-metric #eigrp #hold #hole #in #metric #neighbors #out #redistribute #retransmit #rto #stuck #summary #table #time #topology #troubleshooting

To troubleshoot EIGRP you should obvious have a grasp understanding of the specific routing protocol. Of course this doesn’t only apply to the EIGRP routing protocol. Troubleshooting the EIGRP routing protocol on a Cisco devices is mainly about logging the correct information to a syslog server, the buffer or the console and know what the … Read More

Firewalling

Cisco Firewall Design and Deployment

René Jorissen on June 25, 2008 0 Comments • Tags: #access #active #asa #bridging #context #dynamic #fwsm #mixed #mode #multi-context #multicast #multiple #protocol #redundancy #redundant #remote #routed #routing #site-to-site #standby #transparant #virtualization #vpn

The session about firewall design and deployment didn’t reveal a lot of new things about the Cisco ASA appliance or FWSM module. The only new thing for me was the possibility to configure a redundant interface for a Cisco ASA appliance. The screen shot below shows the cabling scheme for an implementation with and without … Read More

Other stuff...

Cisco Live – A lot of rude people

René Jorissen on June 25, 2008 1 Comment

I haven’t seen so much rude people in one place during the first day of Cisco Live 2008. I noticed during all the sessions and especially during the general keynote by Cisco’s CEO John Chambers a lot of people left the room, when they noticed that the session was going to an end. I don’t … Read More

Security

Wired 802.1X

René Jorissen on June 24, 2008 0 Comments • Tags: #8021x #authenticate #bypass #iab #inaccessible #wired

The session about wired 802.1X deployment was really interesting. I was stunned about the information I already knew after my testing with MAC Authentication Bypass last week. Of course the speaker had more configuration options when configuring the switch ports. Important for me to hear where the ways for deploying 802.1X in environments. It isn’t … Read More

Firewalling, Security

Cisco IOS Security

René Jorissen on June 24, 2008 0 Comments • Tags: #cisco #classic #firewalling #ios #zone-based

The first session I attended is about Deploying IOS Security. The session is about using the Cisco IOS as firewall to protect branch offices. We discussed normal classic firewalling and zone-based firewalling. I normally use classing firewalling, but I guess I have to try zone-based firewalling in the future. The advantage of zone-based firewalling is … Read More

Other stuff...

Cisco Live 2008

René Jorissen on June 22, 2008 1 Comment

It took a while to finally register for Cisco Networkers / Live. First we wanted to attend last year, then we wanted to attend in Barcelona, Spain, but there were no more tickets. Now I am sitting in my hotel room in Orlando, Florida after a long trip getting here. My colleague and I left … Read More