​​Summary:
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1. Configure the network in its entirely using HDLC encapsulation for the 64Kbps WAN link. Use static routing to provision full Lilo-to-Stitch office connectivity
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2. Convert the link to PPP encapsulation
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3. Configure PPP PAP authentication between Lilo and Stitch. Use the appropriate debug commands to prove authentication is occuring
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4. Convert to using PPP CHAP authentication
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5. Add a second WAN link between Lilo and Stitch, also running at 64Kbps. Engage PPP Multilink to double the bandwidth between the two locations
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1. Configure the network in its entirely using HDLC encapsulation for the 64Kbps WAN link. Use static routing to provision full Lilo-to-Stitch office connectivity
​
Lilo
int lo 0
ip address 10.1.1.1 255.255.255.0
int s1/0
no shut
ip address 172.16.1.1 255.255.255.252
​
Stitch
int lo 0
ip address 10.1.2.1 255.255.255.0
​
int s1/0
ip address 172.16.1.2 255.255.255.252
no shut
​
Lilo
int s1/0
bandwidth 64
​
Stitch
int s1/0
bandwidth 64
​
Lilo
ip route 10.1.2.0 255.255.255.0 172.16.1.2
​
Stitch
ip route 10.1.1.0 255.255.255.0 172.16.1.1
​
2. Convert the link to PPP encapsulation
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Lilo
int s1/0
encapsulation ppp
Stitch
int s1/0
encapsulation ppp
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3. Configure PPP PAP authentication between Lilo and Stitch. Use the appropriate debug commands to prove authentication is occurring
​
3.1 Create account
3.2 Assign credentials
3.3 Enable PAP
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Lilo
username Stitch secret ninja
int s1/0
ppp pap sent-username Lilo password abc123
ppp authentication pap
​
! debug ppp authentication
! debug ppp negotiation
! show debug
! u all
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Stitch
​
username Lilo secret abc123
int s1/0
ppp pap sent-username Stitch password ninja
​
ppp authentication pap
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4. Convert to using PPP CHAP authentication (pwd has to be the same from both sites)
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Lilo
​
username Stitch password 12345
int s1/0
ppp authentication chap
Stitch
​
username Lilo password 12345
int s1/0
ppp authentication chap
​
​
​
5. Add a second WAN link between Lilo and Stitch, also running at 64Kbps. Engage PPP Multilink to double the bandwidth between the two locations
- note another way to implement LB is via Equal cost static routes
​
Lilo
​
int s1/1
encapsulation ppp
bandwidth 64
int s1/0
no ip address
exit
interface multilink 1
encapsulation ppp
ppp multilink
ip address 172.16.1.1 255.255.255.252
ppp multilink group 1 !------------------------create a multilink group
​
int s1/0
ppp multilink group 1 !-----------------------add int s1/0 as part of group 1
int s1/1
ppp multilink group 1 !-----------------------add int s1/1 as part of group 1
Stitch
​
int s1/1
encapsulation ppp
bandwidth 64
​
int s1/0
no ip add
interface multilink 1
ip address 172.16.1.2 255.255.255.252
encapsulation ppp
ppp multilink
ppp multilink group 1
int s1/0
ppp multilink group 1
int s1/1
ppp multilink group 1
