Hi all,
On many solution guides I see the authentication configured on the physical as
well as the multilink interfaces, but it looks to me as even if you put it is
irrelevant if you put on the physical or not. Can you confirm?
Here is my lab at the moment:
****************************R8
!
interface Multilink1
ip address 215.8.7.8 255.255.255.224
no peer neighbor-route
ppp authentication chap
ppp chap hostname Router8
ppp chap password 0 ipexpert
ppp multilink
ppp multilink group 1
end
R8#sh run int se 0/0
Building configuration...
Current configuration : 181 bytes
!
interface Serial0/0
no ip address
encapsulation ppp
ppp authentication chap
ppp chap hostname Router8
ppp chap password 0 ipexpert
ppp multilink
ppp multilink group 1
end
***********************R7
!
interface Multilink1
ip address 215.8.7.7 255.255.255.224
no peer neighbor-route
ppp authentication chap
ppp chap hostname Router7
ppp chap password 0 ipxpert
ppp multilink
ppp multilink group 1
end
R7(config-if)#do sh run int se 0/2/0
Building configuration...
Current configuration : 121 bytes
!
interface Serial0/2/0
no ip address
encapsulation ppp
clock rate 2000000
ppp multilink
ppp multilink group 1
end
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 215.8.7.8, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms
R7(config-if)#do ping 215.8.7.8
R7#sh ppp multilink active
Multilink1
Bundle name: Router8
Remote Username: Router8
Remote Endpoint Discriminator: [1] Router8
Local Username: Router7
Local Endpoint Discriminator: [1] Router7
Bundle up for 00:06:33, total bandwidth 1544, load 1/255
Receive buffer limit 12000 bytes, frag timeout 1000 ms
0/0 fragments/bytes in reassembly list
0 lost fragments, 0 reordered
0/0 discarded fragments/bytes, 0 lost received
0x0 received sequence, 0x0 sent sequence
Member links: 1 active, 0 inactive (max not set, min not set)
Se0/2/0, since 00:06:33
R7#sh ip int bri
Interface IP-Address OK? Method Status
Protocol
FastEthernet0/0 215.7.7.7 YES manual up up
FastEthernet0/1 unassigned YES manual up up
FastEthernet0/1.47 215.4.7.7 YES manual up up
FastEthernet0/1.67 215.6.7.7 YES manual up up
FastEthernet0/1.78 215.7.8.7 YES manual up up
Serial0/2/0 unassigned YES TFTP up up
ATM0/3/0 unassigned YES unset administratively down down
Multilink1 215.8.7.7 YES manual up up
Loopback0 215.0.0.7 YES manual up up
R7#
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