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Example: flow inspection

r1: 

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hostname r1
buggy
!
logging file debug ../binTmp/zzz65r1-log.run
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 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::
 no shutdown
 no log-link-change
 exit
!
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ipv4 route v1 2.2.2.2 255.255.255.255 1.1.1.2
ipv4 route v1 2.2.2.3 255.255.255.255 1.1.1.2
!
ipv6 route v1 4321::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::2
ipv6 route v1 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::2
!
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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/zzz65r2-log.run
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 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 ethernet1
 no description
 vrf forwarding v1
 ipv4 address 1.1.1.2 255.255.255.0
 ipv6 address 1234:1::2 ffff:ffff::
 no shutdown
 no log-link-change
 exit
!
interface ethernet2
 no description
 vrf forwarding v1
 ipv4 address 1.1.2.2 255.255.255.0
 ipv6 address 1234:2::2 ffff:ffff::
 no shutdown
 no log-link-change
 exit
!
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ipv4 route v1 2.2.2.1 255.255.255.255 1.1.1.1
ipv4 route v1 2.2.2.3 255.255.255.255 1.1.2.3
!
ipv6 route v1 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:1::1
ipv6 route v1 4321::3 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:2::3
!
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ipv4 flow v1 collect
!
ipv6 flow v1 collect
!
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/zzz65r3-log.run
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 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 1.1.2.3 255.255.255.0
 ipv6 address 1234:2::3 ffff:ffff::
 no shutdown
 no log-link-change
 exit
!
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ipv4 route v1 2.2.2.1 255.255.255.255 1.1.2.2
ipv4 route v1 2.2.2.2 255.255.255.255 1.1.2.2
!
ipv6 route v1 4321::1 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:2::2
ipv6 route v1 4321::2 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff 1234:2::2
!
!
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!
!
!
!
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!
!
!
server telnet tester
 security protocol telnet
 no exec authorization
 no login authentication
 vrf tester
 exit
!
!
end


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r2#
r2#
r2#show ipv4 flow v1 sess
r2#show ipv4 flow v1 sess
 |~~~~~|~~~~~|~~~~~|~~~~~~|~~~~~~|~~~~~~|~~~~~~|~~~~~|~~~~|~~~~|~~~~|~~~~|~~~~~~|
 |                 | source      | target      |     | packet  | byte    |      |
 | dir | prt | tos | addr | port | addr | port | url | rx | tx | rx | tx | time |
 |-----|-----|-----|------|------|------|------|-----|----|----|----|----|------|
 |_____|_____|_____|______|______|______|______|_____|____|____|____|____|______|
r2#
r2#

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r2#
r2#
r2#show ipv6 flow v1 sess
r2#show ipv6 flow v1 sess
 |~~~~~|~~~~~|~~~~~|~~~~~~|~~~~~~|~~~~~~|~~~~~~|~~~~~|~~~~|~~~~|~~~~|~~~~|~~~~~~|
 |                 | source      | target      |     | packet  | byte    |      |
 | dir | prt | tos | addr | port | addr | port | url | rx | tx | rx | tx | time |
 |-----|-----|-----|------|------|------|------|-----|----|----|----|----|------|
 |_____|_____|_____|______|______|______|______|_____|____|____|____|____|______|
r2#
r2#

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r2#
r2#
r2#show ipv4 flow v1 top
r2#show ipv4 flow v1 top
 |~~~~~~|~~~~|~~~~|~~~~|~~~~|~~~~~~|
 |      | packet  | byte    |      |
 | addr | rx | tx | rx | tx | time |
 |------|----|----|----|----|------|
 |______|____|____|____|____|______|
r2#
r2#

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r2#
r2#
r2#show ipv6 flow v1 top
r2#show ipv6 flow v1 top
 |~~~~~~|~~~~|~~~~|~~~~|~~~~|~~~~~~|
 |      | packet  | byte    |      |
 | addr | rx | tx | rx | tx | time |
 |------|----|----|----|----|------|
 |______|____|____|____|____|______|
r2#
r2#