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Example: polka over broadcast subnet

r1: 

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hostname r1
buggy
!
logging file debug ../binTmp/zzz26r1-log.run
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 exit
!
router lsrp4 1
 vrf v1
 router-id 4.4.4.1
 segrout 10 1
 redistribute connected
 exit
!
router lsrp6 1
 vrf v1
 router-id 6.6.6.1
 segrout 10 1
 redistribute connected
 exit
!
interface loopback0
 no description
 vrf forwarding v1
 ipv4 address 2.2.2.1 255.255.255.255
 ipv6 address 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 no shutdown
 no log-link-change
 exit
!
interface ethernet1
 no description
 vrf forwarding v1
 ipv4 address 1.1.1.1 255.255.255.0
 ipv6 address 1234:1::1 ffff:ffff::
 polka enable 1 65536 10
 mpls enable
 router lsrp4 1 enable
 router lsrp6 1 enable
 no shutdown
 no log-link-change
 exit
!
interface tunnel1
 no description
 tunnel vrf v1
 tunnel source loopback0
 tunnel destination 2.2.2.3
 tunnel domain-name 2.2.2.2
 tunnel mode polka
 vrf forwarding v1
 ipv4 address 3.3.3.1 255.255.255.252
 no shutdown
 no log-link-change
 exit
!
interface tunnel2
 no description
 tunnel vrf v1
 tunnel source loopback0
 tunnel destination 4321::3
 tunnel domain-name 4321::2
 tunnel mode polka
 vrf forwarding v1
 ipv6 address 3333::1 ffff::
 no shutdown
 no log-link-change
 exit
!
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server telnet tester
 security protocol telnet
 no exec authorization
 no login authentication
 vrf tester
 exit
!
!
end

r2: 

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hostname r2
buggy
!
logging file debug ../binTmp/zzz26r2-log.run
!
bridge 1
 mac-learn
 exit
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 exit
!
router lsrp4 1
 vrf v1
 router-id 4.4.4.2
 segrout 10 2
 redistribute connected
 exit
!
router lsrp6 1
 vrf v1
 router-id 6.6.6.2
 segrout 10 2
 redistribute connected
 exit
!
interface loopback0
 no description
 vrf forwarding v1
 ipv4 address 2.2.2.2 255.255.255.255
 ipv6 address 4321::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 no shutdown
 no log-link-change
 exit
!
interface bvi1
 no description
 vrf forwarding v1
 ipv4 address 1.1.1.2 255.255.255.0
 ipv6 address 1234:1::2 ffff:ffff::
 polka enable 2 65536 10
 mpls enable
 router lsrp4 1 enable
 router lsrp6 1 enable
 no shutdown
 no log-link-change
 exit
!
interface ethernet1
 no description
 bridge-group 1
 no shutdown
 no log-link-change
 exit
!
interface ethernet2
 no description
 bridge-group 1
 no shutdown
 no log-link-change
 exit
!
!
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!
server telnet tester
 security protocol telnet
 no exec authorization
 no login authentication
 vrf tester
 exit
!
!
end

r3: 

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hostname r3
buggy
!
logging file debug ../binTmp/zzz26r3-log.run
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 exit
!
router lsrp4 1
 vrf v1
 router-id 4.4.4.3
 segrout 10 3
 redistribute connected
 exit
!
router lsrp6 1
 vrf v1
 router-id 6.6.6.3
 segrout 10 3
 redistribute connected
 exit
!
interface loopback0
 no description
 vrf forwarding v1
 ipv4 address 2.2.2.3 255.255.255.255
 ipv6 address 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
 no shutdown
 no log-link-change
 exit
!
interface ethernet1
 no description
 vrf forwarding v1
 ipv4 address 1.1.1.6 255.255.255.0
 ipv6 address 1234:1::3 ffff:ffff::
 polka enable 3 65536 10
 mpls enable
 router lsrp4 1 enable
 router lsrp6 1 enable
 no shutdown
 no log-link-change
 exit
!
interface tunnel1
 no description
 tunnel vrf v1
 tunnel source loopback0
 tunnel destination 2.2.2.1
 tunnel domain-name 2.2.2.2
 tunnel mode polka
 vrf forwarding v1
 ipv4 address 3.3.3.2 255.255.255.252
 no shutdown
 no log-link-change
 exit
!
interface tunnel2
 no description
 tunnel vrf v1
 tunnel source loopback0
 tunnel destination 4321::1
 tunnel domain-name 4321::2
 tunnel mode polka
 vrf forwarding v1
 ipv6 address 3333::2 ffff::
 no shutdown
 no log-link-change
 exit
!
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server telnet tester
 security protocol telnet
 no exec authorization
 no login authentication
 vrf tester
 exit
!
!
end