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Example: mpls inspection with egress drop

r1: 

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hostname r1
buggy
!
logging file debug ../binTmp/zzz77r1-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/zzz77r2-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-tx
 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/zzz77r3-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            |
 |-----|-----|-----|---------|-----------|---------|-----------|------|----|----|----|----|----------|----------------|----------------|
 | rx  | 1   | 0   | 2.2.2.1 | 170560187 | 2.2.2.2 | 170560187 | null | 1  | 1  | 64 | 64 | 00:00:21 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 1   | 0   | 2.2.2.1 | 170560188 | 2.2.2.2 | 170560188 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 1   | 0   | 2.2.2.1 | 170560189 | 2.2.2.2 | 170560189 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 1   | 0   | 2.2.2.1 | 170560190 | 2.2.2.2 | 170560190 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 1   | 0   | 2.2.2.1 | 170560191 | 2.2.2.2 | 170560191 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 1   | 0   | 2.2.2.1 | 170560192 | 2.2.2.2 | 170560192 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 1   | 0   | 2.2.2.1 | 170560193 | 2.2.2.3 | 170560193 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 1   | 0   | 2.2.2.1 | 170560194 | 2.2.2.3 | 170560194 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 1   | 0   | 2.2.2.1 | 170560195 | 2.2.2.3 | 170560195 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 1   | 0   | 2.2.2.1 | 170560196 | 2.2.2.3 | 170560196 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 1   | 0   | 2.2.2.1 | 170560197 | 2.2.2.3 | 170560197 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 58  | 0   | 4321::1 | 901602766 | 4321::2 | 901602766 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 58  | 0   | 4321::1 | 901602767 | 4321::2 | 901602767 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 58  | 0   | 4321::1 | 901602768 | 4321::2 | 901602768 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 58  | 0   | 4321::1 | 901602769 | 4321::2 | 901602769 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 58  | 0   | 4321::1 | 901602770 | 4321::2 | 901602770 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 58  | 0   | 4321::1 | 901602771 | 4321::3 | 901602771 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 58  | 0   | 4321::1 | 901602772 | 4321::3 | 901602772 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 58  | 0   | 4321::1 | 901602773 | 4321::3 | 901602773 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 58  | 0   | 4321::1 | 901602774 | 4321::3 | 901602774 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 | rx  | 58  | 0   | 4321::1 | 901602775 | 4321::3 | 901602775 | null | 1  | 1  | 64 | 64 | 00:00:20 | 0000.0000.2222 | 0000.0000.1111 |
 |_____|_____|_____|_________|___________|_________|___________|______|____|____|____|____|__________|________________|________________|
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 | 11 | 11 | 704 | 704 | 00:00:22 |
 | 2.2.2.2 | 6  | 6  | 384 | 384 | 00:00:22 |
 | 2.2.2.3 | 5  | 5  | 320 | 320 | 00:00:20 |
 | 4321::1 | 10 | 10 | 640 | 640 | 00:00:21 |
 | 4321::2 | 5  | 5  | 320 | 320 | 00:00:21 |
 | 4321::3 | 5  | 5  | 320 | 320 | 00:00:20 |
 |_________|____|____|_____|_____|__________|
r2#
r2#