Good morning at all, I m new in the forum and I will thank everybody can answer me at a question on route summarization.I don’t understand the difference when to apply the ip summary-address on interface or when to apply at protocol level. If I apply...

Good morning, I'm starting to study for take the ccna certification.Could someone tell me the difference between PABX and isdn simulator and it's possible connect two router with wic ISDN by PABX?. I have a PABX with 4 internal ISDN line where are l...

Good morning, I'm new in Cisco forum; I need to ask about the ISL on cisco router: I would to buy a R 2610 (used) to build my lab to study for CCNA certification. I sow the answer of Inzeos781 in this forum posted Jul 4, 2007 where to configure the I...