Spot the Issues: Review Questions

  1. You have to configure simple OSPF authentication, but you are not provided with the secret being used by the remote router. How can you determine the correct secret?

  2. r3 is an ASBR in a NSSA, and you need to summarize the external routes 192.168.0/24 through 192.168.3/24. What is wrong with the following configuration?

    [edit protocols ospf] lab@r3# show reference-bandwidth 1g; area 0.0.0.1 {     nssa {         default-lsa {             default-metric 1;             type-7;         }         no-summaries;      }     area-range 10.0.4.0/22;     area-range 192.168.0.0/22;      interface fe-0/0/0.0 {          metric 20;      }      interface fe-0/0/1.0 {          metric 20;      } }
  3. Based on the following configuration, will the router's loopback address be advertised into OSPF, and if so, what type of LSA will be used to report the lo0 address?

    [edit] lab@r3# show routing-options static {     route 10.0.200.0/24 {          next-hop 10.0.1.102;         no-readvertise;     } } router-id 10.0.3.3; [edit] lab@r3# show protocols ospf reference-bandwidth 1g; area 0.0.0.1 {     nssa {          default-lsa {             default-metric 1;             type-7;         }          no-summaries;      }      area-range 10.0.4.0/22;      interface fe-0/0/0.0 {          metric 20;      }      interface fe-0/0/1.0 {          metric 20;      } } area 0.0.0.0 {     authentication-type md5; # SECRET-DATA      interface at-0/1/0.35 {         authentication-key "$9$I-EhyKsYoaUH" key-id 1; # SECRET-DATA      }      interface so-0/2/0.100 {          interface-type nbma;         authentication-key "$9$6M9/CpBW87Nb2" key-id 1; # SECRET-DATA         neighbor 10.0.2.6 eligible;      } } 

  4. You have just configured area 20 as a stub, but you note that external LSAs are still in the LSDB as shown next. Is this a problem?

    [edit] lab@r7# set protocols ospf area 20 stub [edit] lab@r7# commit commit complete [edit] lab@r7# run show ospf database    OSPF link state database, area 0.0.0.20  Type       ID               Adv Rtr           Seq       Age  Opt  Cksum  Len Router  *10.0.9.7         10.0.9.7         0x80000002     88  0x0  0x2584  72     OSPF external link state database  Type       ID               Adv Rtr           Seq       Age  Opt  Cksum  Len Extern   10.0.5.0         10.0.3.4         0x80000039    620  0x2  0x7fb7  36 Extern   192.168.0.0      10.0.9.6          0x8000001c  1579  0x2  0x2e0a  36 Extern  *192.168.0.0      10.0.9.7         0x80000064    701  0x2  0x9757  36 

  5. Your goal is to advertise only 192.168.x/24 routes to a RIP neighbor. What is wrong with the following RIP export policy?

    [edit] lab@r6# show policy-options policy-statement broke term 1 {     from {       protocol rip;       route-filter 192.168.0.0/16 orlonger;     }  } then accept;
  6. What is needed to make a Juniper Networks router generate a default route into a stub or NSSA?




JNCIP. Juniper Networks Certified Internet Professional Study Guide Exam CERT-JNCIP-M
JNCIP: Juniper Networks Certified Internet Professional Study Guide
ISBN: 0782140734
EAN: 2147483647
Year: 2003
Pages: 132

flylib.com © 2008-2017.
If you may any questions please contact us: flylib@qtcs.net