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Example: mpls inspection with ingress drop

r1: 

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hostname r1
buggy
!
logging file debug ../binTmp/zzz36r1-log.run
!
access-list test4
 sequence 10 deny 1 any all any all
 sequence 20 permit all any all any all
 exit
!
access-list test6
 sequence 10 deny all 4321:: ffff:: all 4321:: ffff:: all
 sequence 20 permit all any all any all
 exit
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 label-mode per-prefix
 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
 no ipv4 unreachables
 ipv4 access-group-in test4
 ipv6 address 1234:1::1 ffff:ffff::
 no ipv6 unreachables
 ipv6 access-group-in test6
 mpls enable
 mpls ldp4
 mpls ldp6
 no shutdown
 no log-link-change
 exit
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
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
!
!
!
!
!
!
!
!
!
!
!
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/zzz36r2-log.run
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 label-mode per-prefix
 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::
 mpls enable
 mpls inspect mac drop-rx
 mpls ldp4
 mpls ldp6
 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::
 mpls enable
 mpls ldp4
 mpls ldp6
 no shutdown
 no log-link-change
 exit
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
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
!
!
!
!
!
!
!
!
!
!
!
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/zzz36r3-log.run
!
access-list test4
 sequence 10 deny 1 any all any all
 sequence 20 permit all any all any all
 exit
!
access-list test6
 sequence 10 deny all 4321:: ffff:: all 4321:: ffff:: all
 sequence 20 permit all any all any all
 exit
!
vrf definition tester
 exit
!
vrf definition v1
 rd 1:1
 label-mode per-prefix
 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
 no ipv4 unreachables
 ipv4 access-group-in test4
 ipv6 address 1234:2::3 ffff:ffff::
 no ipv6 unreachables
 ipv6 access-group-in test6
 mpls enable
 mpls ldp4
 mpls ldp6
 no shutdown
 no log-link-change
 exit
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
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
!
!
!
!
!
!
!
!
!
!
!
server telnet tester
 security protocol telnet
 no exec authorization
 no login authentication
 vrf tester
 exit
!
!
end


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r2#
r2#
r2#show mpls insp eth1 sess
r2#show mpls insp eth1 sess
 |~~~~~|~~~~~|~~~~~|~~~~~~~~~|~~~~~~~~~~~|~~~~~~~~~|~~~~~~~~~~~|~~~~~~|~~~~|~~~~|~~~~|~~~~|~~~~~~~~~~|~~~~~~~~~~~~~~~~|~~~~~~~~~~~~~~~~|
 |                 | source              | target              |      | packet  | byte    |          | mac                             |
 | dir | prt | tos | addr    | port      | addr    | port      | url  | rx | tx | rx | tx | time     | src            | trg            |
 |-----|-----|-----|---------|-----------|---------|-----------|------|----|----|----|----|----------|----------------|----------------|
 | tx  | 1   | 0   | 2.2.2.2 | 182453699 | 2.2.2.1 | 182453699 | null | 1  | 1  | 64 | 64 | 00:00:22 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.2 | 182453700 | 2.2.2.1 | 182453700 | null | 1  | 1  | 64 | 64 | 00:00:22 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.2 | 182453701 | 2.2.2.1 | 182453701 | null | 1  | 1  | 64 | 64 | 00:00:22 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.2 | 182453702 | 2.2.2.1 | 182453702 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.2 | 182453703 | 2.2.2.1 | 182453703 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.2 | 182453704 | 2.2.2.1 | 182453704 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.2 | 182453705 | 2.2.2.1 | 182453705 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.2 | 182453706 | 2.2.2.1 | 182453706 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.3 | 221406924 | 2.2.2.1 | 221406924 | null | 1  | 1  | 64 | 64 | 00:00:00 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.3 | 221406925 | 2.2.2.1 | 221406925 | null | 1  | 1  | 64 | 64 | 00:00:00 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.3 | 221406926 | 2.2.2.1 | 221406926 | null | 1  | 1  | 64 | 64 | 00:00:00 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.3 | 221406927 | 2.2.2.1 | 221406927 | null | 1  | 1  | 64 | 64 | 00:00:00 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 1   | 0   | 2.2.2.3 | 221406928 | 2.2.2.1 | 221406928 | null | 1  | 1  | 64 | 64 | 00:00:00 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 58  | 0   | 4321::3 | 130113780 | 4321::1 | 130113780 | null | 1  | 1  | 64 | 64 | 00:00:00 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 58  | 0   | 4321::3 | 130113781 | 4321::1 | 130113781 | null | 1  | 1  | 64 | 64 | 00:00:00 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 58  | 0   | 4321::3 | 130113782 | 4321::1 | 130113782 | null | 1  | 1  | 64 | 64 | 00:00:00 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 58  | 0   | 4321::3 | 130113783 | 4321::1 | 130113783 | null | 1  | 1  | 64 | 64 | 00:00:00 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 58  | 0   | 4321::3 | 130113784 | 4321::1 | 130113784 | null | 1  | 1  | 64 | 64 | 00:00:00 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 58  | 0   | 4321::2 | 288281112 | 4321::1 | 288281112 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 58  | 0   | 4321::2 | 288281113 | 4321::1 | 288281113 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 58  | 0   | 4321::2 | 288281114 | 4321::1 | 288281114 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 58  | 0   | 4321::2 | 288281115 | 4321::1 | 288281115 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.1111 | 0000.0000.2222 |
 | tx  | 58  | 0   | 4321::2 | 288281116 | 4321::1 | 288281116 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.1111 | 0000.0000.2222 |
 |_____|_____|_____|_________|___________|_________|___________|______|____|____|____|____|__________|________________|________________|
r2#
r2#

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r2#
r2#
r2#show mpls insp eth1 top
r2#show mpls insp eth1 top
 |~~~~~~~~~|~~~~|~~~~|~~~~~|~~~~~|~~~~~~~~~~|
 |         | packet  | byte      |          |
 | addr    | rx | tx | rx  | tx  | time     |
 |---------|----|----|-----|-----|----------|
 | 2.2.2.1 | 13 | 13 | 832 | 832 | 00:00:22 |
 | 2.2.2.2 | 8  | 8  | 512 | 512 | 00:00:22 |
 | 2.2.2.3 | 5  | 5  | 320 | 320 | 00:00:00 |
 | 4321::1 | 10 | 10 | 640 | 640 | 00:00:21 |
 | 4321::2 | 5  | 5  | 320 | 320 | 00:00:21 |
 | 4321::3 | 5  | 5  | 320 | 320 | 00:00:00 |
 |_________|____|____|_____|_____|__________|
r2#
r2#