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CCNA Routing and Switching Lessons 11-12 - WAN Configuration - Eric Vanderburg
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CCNA Routing and Switching Lessons 11-12 - WAN Configuration - Eric Vanderburg

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CCNA Routing and Switching Lessons 11-12 - WAN Configuration - Eric Vanderburg

CCNA Routing and Switching Lessons 11-12 - WAN Configuration - Eric Vanderburg

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  • 1. PPP, ISDN, & Frame Relay Chapters 11-12 Networking Essentials – Eric Vanderburg © 2005
  • 2. PPP  Interface serial 0 Encapsulation ppp  Ppp authentication chap  Username CNT password class  Authentication will succeed if the password is the same on both ends.  Networking Essentials – Eric Vanderburg © 2005
  • 3. Functions & Reference Points  U reference point always connects to the ISP on one end  Other end is connected to NT1/TE1 on the router or NT1 device  NT1 device uses reference pt S/T to connect to the router TE1  NT1 device uses reference pt T to connect to NT2, NT2 uses S reference pt to connect to the router TE1. (NT2 is often used with a PBX CPE)  NT1 device using reference pt S/T connects to TA, TA uses R reference pt to connect to TE2 Networking Essentials – Eric Vanderburg © 2005
  • 4. ISDN Configuration (BRI) Isdn switch-type basic-ni1  Switch types  Basic-Dms100, Basic-ni1, & basic-5ess (North America)  Basic-net3 (Europe & UK)  NTT (Japan)  Vn3 (France)  1tr6 (Germany)  Ts013 (Australia)  Networking Essentials – Eric Vanderburg © 2005
  • 5. ISDN Configuration  Interface bri 0        Isdn spid1 83940293774856 Isdn spid2 93849380964893 Dialer idle-timeout 300 (disconnect after 300) Dial wait-for-carrier time 20 (wait 20 secs for response from ISP) Dialer fast-idle 120 Ppp multilink Dialer load-threshold 50 either (dial another line if using 50% capacity) Networking Essentials – Eric Vanderburg © 2005
  • 6. ISDN Configuration Dialer-list 1 protocol ip list 101  Interface bri 0  Dialer-string 14405551212 (always dial this number)  Dialer map ip 172.16.2.1 broadcast name LA 14045967491  Dialer-group 1  Networking Essentials – Eric Vanderburg © 2005
  • 7. ISDN Configuration (PRI)  Controller t1 1/0  Framing esf (how to interpret frames)  Sf,  esf, or crc4 Linecode b8zs (encoding – what is 0 &1)  Ami,   b8zs, or hdb3 Pri-group timeslots 1-24 Interface serial 1/0:23 (last subinterface representing the D channel)  Configuration similar to BRI Networking Essentials – Eric Vanderburg © 2005
  • 8. ISDN Configuration Create an interface for each remote site  Interface dialer 1  Ip address…  Encapsulation ppp  Ppp authentication chap  Dialer remote-name LA  Dialer string 172.16.2.1 14045967491  Dialer-group 1 (defines interesting traffic)  Dialer pool 3 (BRI lines can be in this)  Networking Essentials – Eric Vanderburg © 2005
  • 9. ISDN Configuration  Interface serial 1/0:0 Encapsulation ppp  Ppp authentication chap  Isdn spid 555094830928394  Dialer pool-member 3  Networking Essentials – Eric Vanderburg © 2005
  • 10. Frame Relay  Interface serial 0 Encapsulation frame-relay  Frame-relay lmi type ansi (router to switch)   Ansi,  q933a, or Cisco (Cisco is default) Frame-relay interface-dlci 50 ietf  Optional ietf/cisco (cisco is default. Set to ietf if using another brand of router) Networking Essentials – Eric Vanderburg © 2005
  • 11. Frame Relay If you are not using inverse arp  Interface serial 0  No frame-relay inverse-arp  Frame-relay map ip 192.168.0.2 51 broadcast  (broadcast allows broadcasted routing updates to be sent unicast to each mapped router)   Show frame-relay map Networking Essentials – Eric Vanderburg © 2005
  • 12. Frame Relay   Subinterfaces Interface serial 0.1 point-to-point    Interface serial 0   Ip address… Frame-relay interface-dlci 51 Encapsulation frame-relay Interface serial 0.1 multipoint    ip address… Frame-relay interface-dlci 51 Frame-relay interface-dlci 52 Networking Essentials – Eric Vanderburg © 2005