Февраль | 2017

Трассировка Anycast IP:

$ traceroute -A 192.175.48.1
traceroute to 192.175.48.1 (192.175.48.1), 30 hops max, 60 byte packets
 1  1.84-54-92.telenet.ru (92.54.84.1) [AS35154]  1.544 ms  1.758 ms  1.953 ms
 2  126.92-54-92.telenet.ru (92.54.92.126) [AS35154]  0.331 ms  0.334 ms  0.323 ms
 3  150.96-54-92.telenet.ru (92.54.96.150) [AS35154]  0.739 ms  1.018 ms  1.088 ms
 4  172.16.17.206 (172.16.17.206) [*]  0.373 ms  0.361 ms  0.348 ms
 5  172.16.17.209 (172.16.17.209) [*]  0.543 ms  0.632 ms  0.616 ms
 6  188.254.77.217 (188.254.77.217) [AS12389]  0.464 ms  0.486 ms  0.522 ms
 7  217.107.67.19 (217.107.67.19) [AS12389]  67.082 ms  67.430 ms  67.389 ms
 8  prisoner.iana.org (192.175.48.1) [AS26711/AS36632/AS36631/AS36630/AS36629/AS36628/AS36627/AS36625/AS36624/AS36623/AS36622/AS36621/AS36620/AS36619/AS36618/AS36617/AS36616/AS26415/AS45177/AS45179/AS9503/AS9293/AS36626/AS7545/AS45671/AS7586/AS112/AS19836/AS26228/AS36236/AS2018/AS8167/AS9942/AS1221/AS54225/AS19039]  75.050 ms  75.071 ms  75.061 ms

$ traceroute -A 192.175.48.1

traceroute to 192.175.48.1 (192.175.48.1), 30 hops max, 60 byte packets

1 1.84-54-92.telenet.ru (92.54.84.1) [AS35154] 1.544 ms 1.758 ms 1.953 ms

2 126.92-54-92.telenet.ru (92.54.92.126) [AS35154] 0.331 ms 0.334 ms 0.323 ms

3 150.96-54-92.telenet.ru (92.54.96.150) [AS35154] 0.739 ms 1.018 ms 1.088 ms

4 172.16.17.206 (172.16.17.206) [*] 0.373 ms 0.361 ms 0.348 ms

5 172.16.17.209 (172.16.17.209) [*] 0.543 ms 0.632 ms 0.616 ms

6 188.254.77.217 (188.254.77.217) [AS12389] 0.464 ms 0.486 ms 0.522 ms

7 217.107.67.19 (217.107.67.19) [AS12389] 67.082 ms 67.430 ms 67.389 ms

8 prisoner.iana.org (192.175.48.1) [AS26711/AS36632/AS36631/AS36630/AS36629/AS36628/AS36627/AS36625/AS36624/AS36623/AS36622/AS36621/AS36620/AS36619/AS36618/AS36617/AS36616/AS26415/AS45177/AS45179/AS9503/AS9293/AS36626/AS7545/AS45671/AS7586/AS112/AS19836/AS26228/AS36236/AS2018/AS8167/AS9942/AS1221/AS54225/AS19039] 75.050 ms 75.071 ms 75.061 ms

Проверяем:

$ whois -h riswhois.ripe.net 192.175.48.0/24
% This is RIPE NCC's Routing Information Service
% whois gateway to collected BGP Routing Tables, version2.0
% IPv4 or IPv6 address to origin prefix match
%
% For more information visit http://www.ripe.net/ris/riswhois.html

route:        192.175.48.0/24
origin:       AS36617
descr:        AGTLD - VeriSign Global Registry Services, US
lastupd-frst: 2016-05-03 17:55Z  12.0.1.63@rrc00
lastupd-last: 2016-05-03 17:55Z  12.0.1.63@rrc00
seen-at:      rrc00
num-rispeers: 1
source:       RISWHOIS

route:        192.175.48.0/24
origin:       AS112
descr:        ROOTSERV - DNS-OARC, US
lastupd-frst: 2016-02-18 14:37Z  80.249.208.94@rrc03
lastupd-last: 2016-05-03 22:49Z  193.150.22.1@rrc00
seen-at:      rrc00,rrc01,rrc03,rrc04,rrc05,rrc06,rrc07,rrc10,rrc11,rrc12,rrc13,rrc14,rrc15,rrc16
num-rispeers: 132
source:       RISWHOIS

route:        192.175.48.0/24
origin:       AS12041
descr:        AS-AFILIAS1 - Afilias Canada, Corp., CA
lastupd-frst: 2016-05-01 04:11Z  45.61.0.85@rrc00
lastupd-last: 2016-05-01 04:11Z  45.61.0.85@rrc00
seen-at:      rrc00
num-rispeers: 1
source:       RISWHOIS

route:        192.175.48.0/24
origin:       AS37989
descr:        DCS1-02-AS-AP DCS1 Pte Ltd, at DC02, SG
lastupd-frst: 2016-04-30 18:47Z  203.123.48.6@rrc00
lastupd-last: 2016-04-30 18:47Z  203.123.48.6@rrc00
seen-at:      rrc00
num-rispeers: 1
source:       RISWHOIS

route:        192.175.48.0/24
origin:       AS36622
descr:        IGTLD - VeriSign Global Registry Services, US
lastupd-frst: 2016-05-03 22:34Z  2001:7f8::bc26:0:1@rrc12
lastupd-last: 2016-05-03 22:36Z  80.81.194.204@rrc12
seen-at:      rrc12
num-rispeers: 2
source:       RISWHOIS

$ whois -h riswhois.ripe.net 192.175.48.0/24

% This is RIPE NCC's Routing Information Service

% whois gateway to collected BGP Routing Tables, version2.0

% IPv4 or IPv6 address to origin prefix match

% For more information visit http://www.ripe.net/ris/riswhois.html

route: 192.175.48.0/24

origin: AS36617

descr: AGTLD - VeriSign Global Registry Services, US

lastupd-frst: 2016-05-03 17:55Z 12.0.1.63@rrc00

lastupd-last: 2016-05-03 17:55Z 12.0.1.63@rrc00

seen-at: rrc00

num-rispeers: 1

source: RISWHOIS

route: 192.175.48.0/24

origin: AS112

descr: ROOTSERV - DNS-OARC, US

lastupd-frst: 2016-02-18 14:37Z 80.249.208.94@rrc03

lastupd-last: 2016-05-03 22:49Z 193.150.22.1@rrc00

seen-at: rrc00,rrc01,rrc03,rrc04,rrc05,rrc06,rrc07,rrc10,rrc11,rrc12,rrc13,rrc14,rrc15,rrc16

num-rispeers: 132

source: RISWHOIS

route: 192.175.48.0/24

origin: AS12041

descr: AS-AFILIAS1 - Afilias Canada, Corp., CA

lastupd-frst: 2016-05-01 04:11Z 45.61.0.85@rrc00

lastupd-last: 2016-05-01 04:11Z 45.61.0.85@rrc00

seen-at: rrc00

num-rispeers: 1

source: RISWHOIS

route: 192.175.48.0/24

origin: AS37989

descr: DCS1-02-AS-AP DCS1 Pte Ltd, at DC02, SG

lastupd-frst: 2016-04-30 18:47Z 203.123.48.6@rrc00

lastupd-last: 2016-04-30 18:47Z 203.123.48.6@rrc00

seen-at: rrc00

num-rispeers: 1

source: RISWHOIS

route: 192.175.48.0/24

origin: AS36622

descr: IGTLD - VeriSign Global Registry Services, US

lastupd-frst: 2016-05-03 22:34Z 2001:7f8::bc26:0:1@rrc12

lastupd-last: 2016-05-03 22:36Z 80.81.194.204@rrc12

seen-at: rrc12

num-rispeers: 2

source: RISWHOIS

Смотрим кадр EthPW + CW на транзите:
ARP Request:

# tshark -Vr R1.pcapng -xO "eth"
Frame 1: 68 bytes on wire (544 bits), 68 bytes captured (544 bits) on interface 0
Ethernet II, Src: LucentTe_71:f7:01 (00:05:86:71:f7:01), Dst: LucentTe_71:7d:00 (00:05:86:71:7d:00)
    Destination: LucentTe_71:7d:00 (00:05:86:71:7d:00)
        Address: LucentTe_71:7d:00 (00:05:86:71:7d:00)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Source: LucentTe_71:f7:01 (00:05:86:71:f7:01)
        Address: LucentTe_71:f7:01 (00:05:86:71:f7:01)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Type: MPLS label switched packet (0x8847)
MultiProtocol Label Switching Header, Label: 299776, Exp: 0, S: 0, TTL: 255
MultiProtocol Label Switching Header, Label: 299776, Exp: 0, S: 1, TTL: 255
PW Ethernet Control Word
Ethernet II, Src: 50:00:00:04:00:00 (50:00:00:04:00:00), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
    Destination: Broadcast (ff:ff:ff:ff:ff:ff)
        Address: Broadcast (ff:ff:ff:ff:ff:ff)
        .... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)
        .... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)
    Source: 50:00:00:04:00:00 (50:00:00:04:00:00)
        Address: 50:00:00:04:00:00 (50:00:00:04:00:00)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Type: ARP (0x0806)
Address Resolution Protocol (request)

0000  00 05 86 71 7d 00 00 05 86 71 f7 01 88 47 49 30   ...q}....q...GI0
0010  00 ff 49 30 01 ff 00 00 00 00 ff ff ff ff ff ff   ..I0............
0020  50 00 00 04 00 00 08 06 00 01 08 00 06 04 00 01   P...............
0030  50 00 00 04 00 00 c0 a8 00 01 00 00 00 00 00 00   P...............
0040  c0 a8 00 02                                       ....

# tshark -Vr R1.pcapng -xO "eth"

Frame 1: 68 bytes on wire (544 bits), 68 bytes captured (544 bits) on interface 0

Ethernet II, Src: LucentTe_71:f7:01 (00:05:86:71:f7:01), Dst: LucentTe_71:7d:00 (00:05:86:71:7d:00)

Destination: LucentTe_71:7d:00 (00:05:86:71:7d:00)

Address: LucentTe_71:7d:00 (00:05:86:71:7d:00)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Source: LucentTe_71:f7:01 (00:05:86:71:f7:01)

Address: LucentTe_71:f7:01 (00:05:86:71:f7:01)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Type: MPLS label switched packet (0x8847)

MultiProtocol Label Switching Header, Label: 299776, Exp: 0, S: 0, TTL: 255

MultiProtocol Label Switching Header, Label: 299776, Exp: 0, S: 1, TTL: 255

PW Ethernet Control Word

Ethernet II, Src: 50:00:00:04:00:00 (50:00:00:04:00:00), Dst: Broadcast (ff:ff:ff:ff:ff:ff)

Destination: Broadcast (ff:ff:ff:ff:ff:ff)

Address: Broadcast (ff:ff:ff:ff:ff:ff)

.... ..1. .... .... .... .... = LG bit: Locally administered address (this is NOT the factory default)

.... ...1 .... .... .... .... = IG bit: Group address (multicast/broadcast)

Source: 50:00:00:04:00:00 (50:00:00:04:00:00)

Address: 50:00:00:04:00:00 (50:00:00:04:00:00)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Type: ARP (0x0806)

Address Resolution Protocol (request)

0000 00 05 86 71 7d 00 00 05 86 71 f7 01 88 47 49 30 ...q}....q...GI0

0010 00 ff 49 30 01 ff 00 00 00 00 ff ff ff ff ff ff ..I0............

0020 50 00 00 04 00 00 08 06 00 01 08 00 06 04 00 01 P...............

0030 50 00 00 04 00 00 c0 a8 00 01 00 00 00 00 00 00 P...............

0040 c0 a8 00 02 ....

ARP Reply:

Frame 2: 64 bytes on wire (512 bits), 64 bytes captured (512 bits) on interface 0
Ethernet II, Src: LucentTe_71:7d:00 (00:05:86:71:7d:00), Dst: LucentTe_71:f7:01 (00:05:86:71:f7:01)
    Destination: LucentTe_71:f7:01 (00:05:86:71:f7:01)
        Address: LucentTe_71:f7:01 (00:05:86:71:f7:01)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Source: LucentTe_71:7d:00 (00:05:86:71:7d:00)
        Address: LucentTe_71:7d:00 (00:05:86:71:7d:00)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Type: MPLS label switched packet (0x8847)
MultiProtocol Label Switching Header, Label: 299776, Exp: 0, S: 1, TTL: 254
IEEE 802.3 Ethernet
    Destination: 00:00:00_00:50:00 (00:00:00:00:50:00)
        Address: 00:00:00_00:50:00 (00:00:00:00:50:00)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Source: LexmarkI_00:50:00 (00:04:00:00:50:00)
        Address: LexmarkI_00:50:00 (00:04:00:00:50:00)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Length: 5
    Padding: 01080006040002500000050000c0a80002500000040000
    Trailer: c0a80001
Logical-Link Control
Data (1 byte)

0000  00 05 86 71 f7 01 00 05 86 71 7d 00 88 47 49 30   ...q.....q}..GI0
0010  01 fe 00 00 00 00 50 00 00 04 00 00 50 00 00 05   ......P.....P...
0020  00 00 08 06 00 01 08 00 06 04 00 02 50 00 00 05   ............P...
0030  00 00 c0 a8 00 02 50 00 00 04 00 00 c0 a8 00 01   ......P.........

Frame 2: 64 bytes on wire (512 bits), 64 bytes captured (512 bits) on interface 0

Ethernet II, Src: LucentTe_71:7d:00 (00:05:86:71:7d:00), Dst: LucentTe_71:f7:01 (00:05:86:71:f7:01)

Destination: LucentTe_71:f7:01 (00:05:86:71:f7:01)

Address: LucentTe_71:f7:01 (00:05:86:71:f7:01)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Source: LucentTe_71:7d:00 (00:05:86:71:7d:00)

Address: LucentTe_71:7d:00 (00:05:86:71:7d:00)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Type: MPLS label switched packet (0x8847)

MultiProtocol Label Switching Header, Label: 299776, Exp: 0, S: 1, TTL: 254

IEEE 802.3 Ethernet

Destination: 00:00:00_00:50:00 (00:00:00:00:50:00)

Address: 00:00:00_00:50:00 (00:00:00:00:50:00)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Source: LexmarkI_00:50:00 (00:04:00:00:50:00)

Address: LexmarkI_00:50:00 (00:04:00:00:50:00)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Length: 5

Padding: 01080006040002500000050000c0a80002500000040000

Trailer: c0a80001

Logical-Link Control

Data (1 byte)

0000 00 05 86 71 f7 01 00 05 86 71 7d 00 88 47 49 30 ...q.....q}..GI0

0010 01 fe 00 00 00 00 50 00 00 04 00 00 50 00 00 05 ......P.....P...

0020 00 00 08 06 00 01 08 00 06 04 00 02 50 00 00 05 ............P...

0030 00 00 c0 a8 00 02 50 00 00 04 00 00 c0 a8 00 01 ......P.........

Откуда-то появляется IEEE 802.3 LLC, хотя его конечно нет, это связанно с ошибочной интерпретацией снифера данных идущих после MPLS заголовка. EthType может быть 0x8847 или 0x8848, MPLS unicast/multicast соответственно. Тем самым нам приходиться угадывать что лежит ниже MPLS заголовка. В данном случае снифер не видит наличие поля CW и сразу интерпретирует данные как неверный MAC адрес, имеем:
00 00 00 00 50 00 — Ethernet dst
00 04 00 00 50 00 — Ethernet src
00 05 — длинна данных
00 00 08 06 — LLC заголовок
Т.к мы знаем наверняка, что у нас используется PW + CW, укажем это в явном виде опцией -d («decode as») и получаем читаемый вид:

# tshark -Vr R1.pcapng -xO "eth" -d mpls.label==299776,pwethcw
Frame 2: 64 bytes on wire (512 bits), 64 bytes captured (512 bits) on interface 0
Ethernet II, Src: LucentTe_71:7d:00 (00:05:86:71:7d:00), Dst: LucentTe_71:f7:01 (00:05:86:71:f7:01)
    Destination: LucentTe_71:f7:01 (00:05:86:71:f7:01)
        Address: LucentTe_71:f7:01 (00:05:86:71:f7:01)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Source: LucentTe_71:7d:00 (00:05:86:71:7d:00)
        Address: LucentTe_71:7d:00 (00:05:86:71:7d:00)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Type: MPLS label switched packet (0x8847)
MultiProtocol Label Switching Header, Label: 299776, Exp: 0, S: 1, TTL: 254
PW Ethernet Control Word
Ethernet II, Src: 50:00:00:05:00:00 (50:00:00:05:00:00), Dst: 50:00:00:04:00:00 (50:00:00:04:00:00)
    Destination: 50:00:00:04:00:00 (50:00:00:04:00:00)
        Address: 50:00:00:04:00:00 (50:00:00:04:00:00)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Source: 50:00:00:05:00:00 (50:00:00:05:00:00)
        Address: 50:00:00:05:00:00 (50:00:00:05:00:00)
        .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
        .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
    Type: ARP (0x0806)
Address Resolution Protocol (reply)

0000  00 05 86 71 f7 01 00 05 86 71 7d 00 88 47 49 30   ...q.....q}..GI0
0010  01 fe 00 00 00 00 50 00 00 04 00 00 50 00 00 05   ......P.....P...
0020  00 00 08 06 00 01 08 00 06 04 00 02 50 00 00 05   ............P...
0030  00 00 c0 a8 00 02 50 00 00 04 00 00 c0 a8 00 01   ......P.........

# tshark -Vr R1.pcapng -xO "eth" -d mpls.label==299776,pwethcw

Frame 2: 64 bytes on wire (512 bits), 64 bytes captured (512 bits) on interface 0

Ethernet II, Src: LucentTe_71:7d:00 (00:05:86:71:7d:00), Dst: LucentTe_71:f7:01 (00:05:86:71:f7:01)

Destination: LucentTe_71:f7:01 (00:05:86:71:f7:01)

Address: LucentTe_71:f7:01 (00:05:86:71:f7:01)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Source: LucentTe_71:7d:00 (00:05:86:71:7d:00)

Address: LucentTe_71:7d:00 (00:05:86:71:7d:00)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Type: MPLS label switched packet (0x8847)

MultiProtocol Label Switching Header, Label: 299776, Exp: 0, S: 1, TTL: 254

PW Ethernet Control Word

Ethernet II, Src: 50:00:00:05:00:00 (50:00:00:05:00:00), Dst: 50:00:00:04:00:00 (50:00:00:04:00:00)

Destination: 50:00:00:04:00:00 (50:00:00:04:00:00)

Address: 50:00:00:04:00:00 (50:00:00:04:00:00)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Source: 50:00:00:05:00:00 (50:00:00:05:00:00)

Address: 50:00:00:05:00:00 (50:00:00:05:00:00)

.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)

.... ...0 .... .... .... .... = IG bit: Individual address (unicast)

Type: ARP (0x0806)

Address Resolution Protocol (reply)

0000 00 05 86 71 f7 01 00 05 86 71 7d 00 88 47 49 30 ...q.....q}..GI0

0010 01 fe 00 00 00 00 50 00 00 04 00 00 50 00 00 05 ......P.....P...

0020 00 00 08 06 00 01 08 00 06 04 00 02 50 00 00 05 ............P...

0030 00 00 c0 a8 00 02 50 00 00 04 00 00 c0 a8 00 01 ......P.........

Полный список протоколов можно получить:

# tshark -d .
mpls_y1711 (MPLS ITU-T Y.1711 OAM)
mplspwatm11_or_aal5pdu (MPLS PW ATM One-to-One or AAL5 PDU encapsulation)
mplspwatmaal5sdu (MPLS PW ATM AAL5 CPCS-SDU mode encapsulation)
mplspwatmn1cw (MPLS PW ATM N-to-One encapsulation, with CW)
mplspwatmn1nocw (MPLS PW ATM N-to-One encapsulation, no CW)
pw_hdlc_nocw_fr (HDLC PW, FR port mode (no CW))
pw_hdlc_nocw_hdlc_ppp (HDLC-like framing for PPP)
pwcesopsn (CESoPSN basic NxDS0 mode (no RTP support))
pwethcw (PW Ethernet Control Word)
pwethheuristic (Ethernet PW (CW heuristic))
pwethnocw (Ethernet PW (no CW))
pwfr (PW Frame Relay DLCI Control Word)
pwmcw (PW MPLS Control Word (generic/preferred))
<output omitted>

# tshark -d .

mpls_y1711 (MPLS ITU-T Y.1711 OAM)

mplspwatm11_or_aal5pdu (MPLS PW ATM One-to-One or AAL5 PDU encapsulation)

mplspwatmaal5sdu (MPLS PW ATM AAL5 CPCS-SDU mode encapsulation)

mplspwatmn1cw (MPLS PW ATM N-to-One encapsulation, with CW)

mplspwatmn1nocw (MPLS PW ATM N-to-One encapsulation, no CW)

pw_hdlc_nocw_fr (HDLC PW, FR port mode (no CW))

pw_hdlc_nocw_hdlc_ppp (HDLC-like framing for PPP)

pwcesopsn (CESoPSN basic NxDS0 mode (no RTP support))

pwethcw (PW Ethernet Control Word)

pwethheuristic (Ethernet PW (CW heuristic))

pwethnocw (Ethernet PW (no CW))

pwfr (PW Frame Relay DLCI Control Word)

pwmcw (PW MPLS Control Word (generic/preferred))

В Wireshark это делается: Правый клик на кадр, «Decode As», поле «Current» выставляем как: «Ethernet PW (with CW)».

IPv5

Архив за месяц: Февраль 2017

Anycast traceroute

Wireshark, парсинг MPLS Ethernet PW + CW

Networking