I am pretty new to cisco router config, but I have looked at various router configuration from our office existing router. I am just trying to understand the config done by our previous employee in our remote office, so please help me out. This is a T1 internet line by MCI and use unnumbered in their serial interface, here is what I don't understand as most of the line in our main office have ip on their serial interface.
The line under Serial0/0 encapsulation frame-relay IETF -- Do I need this line? This is not a frame relay but an internet line only.
Also, the interface Serial0/0.1 part interface Serial0/0.1 point-to-point -- Do I need this 4 lines at all? bandwidth 1536 ip unnumbered FastEthernet0/0 frame-relay interface-dlci 500 IETF
I just need a bare minimum for internet access only, and here is the complete config (removed lines with password and line) Please help, thank you so much.
C2620-R2-R23#sh running-config Building configuration...
Current configuration : 1528 bytes ! ! No configuration change since last restart ! version 12.3 service timestamps debug datetime localtime service timestamps log datetime localtime service password-encryption ! hostname C2620-R2-R23 ! boot-start-marker boot-end-marker ! logging buffered 8196 debugging ! memory-size iomem 15 clock timezone PST -8 clock summer-time PDT recurring no aaa new-model ip subnet-zero ip cef ! ip audit po max-events 100 ! interface FastEthernet0/0 description To Office Ethernet R23 ip address 22.214.171.124 255.255.255.240 duplex auto speed auto ! interface Serial0/0 bandwidth 1536 no ip address encapsulation frame-relay IETF no fair-queue service-module t1 timeslots 1-24 frame-relay lmi-type ansi ! interface Serial0/0.1 point-to-point bandwidth 1536 ip unnumbered FastEthernet0/0 frame-relay interface-dlci 500 IETF ! no ip http server no ip http secure-server ip classless ip route 0.0.0.0 0.0.0.0 Serial0/0.1 ! ntp clock-period 17180386 ntp server 126.96.36.199 prefer ! end