Posts in 2018
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Release New Features
Thursday, January 04, 2018 in Cisco Networking
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Posts in 2014
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CCIE RSv5 Transition Technologies
Tuesday, July 08, 2014 in Cisco Networking
CCIEv5 started in June, and since my plan is to have the exam prepared for December, I’ll first be getting into the New Topics of the Blueprint v5 Lab Curriculum. As you probably know, CCIEv5 is all about virtual equipment with Fast Initial …
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CCIE RSv5 Transition Technologies, Topic 1: DMVPN
Thursday, June 05, 2014 in Cisco Networking
DMVPN is documented under “Security and VPN”, for IOS 12.4T it can be found here. TIP: If you need to clear the NHRP cache because you changed something in the configuration, bounce all the tunnels. TIP: It’s crucial that you decide …
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OSPF over Frame-Relay, focus on Network Types
Tuesday, January 14, 2014 in Cisco Networking
Don’t forget that in Frame-Relay “broadcast” is defined ONLY DIRECTLY HUB AND A SPOKE, ON BOTH SIDES of the pvc!!! What this does is tell the routers “Hey if you have any broadcast messages, go ahead and send them down this DLCI as …
Posts in 2013
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ADVANCED Access Lists (ACL) Configuration
Saturday, December 07, 2013 in Cisco Networking
TIP: ACL is applied directly to the interface using the “ip access-group” command: (config-subif)#ip access-group EXTENDED_OR_STANDARD_ACL [in | out] TIP: Watch out not to ban the routing protocol traffic!!! You might need to add this to …
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CCIE Blueprint v5 announced
Friday, December 06, 2013 in Cisco Networking
As we’ve been waiting for, the new v5 Blueprint has been announced. Starting from June the 4th 2014 the CCIE exam content changes, so if you’ve been preparing it for a while - you might want to set a date! I’ve got 3rd of March …
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IP SLA - Monitor the Network Performance
Friday, December 06, 2013 in Cisco Networking
Probably most typical usage of IP SLA is to measure the and UDP Jitter and Echo, to make sure that the path is good enough to send the sensitive VoIP traffic. Two sides need to be configured, CLIENT and SERVER (RESPONDER). IP SLA can be configured …
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PBR - Policy Based Routing
Tuesday, December 03, 2013 in Cisco Networking
!!!Most Important: To DEBUG the Policy Map: #debug ip policy To match the SOURCE IP use the standard ACL: (config)#access-list 2 permit host 100.1.1.1 To match the FLOW use the EXTENDED ACL: (config)#ip access-list extended FLOW1 …
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IPv6 Tunnels
Sunday, December 01, 2013 in Cisco Networking
First a reminder about a IPv4 GRE tunnel, the most simple and GENERIC one. Configuration is really simple, create the Tunnel interface, define the MODE and assign the Source and Destination IP or Interface: (Config)#Interface tunnel …
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EIGRPv6
Sunday, December 01, 2013 in Cisco Networking
The difference with OSPF is that even if you configure it on the interface: (config-if)#ipv6 eigrp 100 it will not form an adjacency unless you DEFINE THE ROUTER-ID, and do a NO SHUT: (config-rtr)#eigrp router-id 1.1.1.1 (config-rtr)#no shut <-ON …