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发表于 2011-1-31 22:20:56
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就借宝地一用了,为了更进一步弄清这个RG200E-AB的工作原理,我把iptv机顶盒接在iTV口,然后在RG200E的WAN口接一台带tcpdump的上网本:tcpdump -vvv -XX -l -e -i eth1/ q1 {. g& C" r
. V b2 u r8 K9 p* Y" O0 X, q$ Y0 q采集到3种包:无vlan tag的pppoe(这个应该是宽带上网的pppoe拨号), vlan tag为46的DHCP请求(无vendor option,应该是那个所谓的管理端口),vlan tag为85的DHCP请求(有vender option,应该是iptv盒子发出来的,好些格式出了vlan tag其它和我昨天直接在iptv eth口采集到的一样)4 S m2 M. C+ u6 M1 \1 ^0 r
22:05:47.791669 b4:41:7a:0e:0b:00 (oui Unknown) > Broadcast, ethertype PPPoE D (0x8863), length 60: PPPoE PADI [Service-Name] [Host-Uniq 0x00488008]/ d" D2 d0 N0 q) ~4 D9 ^
0x0000: ffff ffff ffff b441 7a0e 0b00 8863 1109 .......Az....c..' U% K3 [- f# `2 H( w x& N
0x0010: 0000 000c 0101 0000 0103 0004 0048 8008 .............H..
6 ~' _9 A9 {, e6 o N7 ]+ b 0x0020: 0000 0000 0000 0000 0000 0000 0000 0000 ................0 ^+ i5 n3 i. R$ w4 N5 Z* |+ K2 p
0x0030: 0000 0000 0000 0000 0000 0000 ............- }' b& x; v+ _" X4 f0 B8 T
22:05:47.791865 b4:41:7a:0e:0b:00 (oui Unknown) > 00:90:1a:a2:da:2a (oui Unknown), ethertype PPPoE D (0x8863), length 60: PPPoE PADT [ses 0x221] [Host-Uniq 0x00488008] [Service-Name]
8 f! W& c+ M8 Z' x4 }! ^ 0x0000: 0090 1aa2 da2a b441 7a0e 0b00 8863 11a7 .....*.Az....c... @; h( j& ~1 [; e
0x0010: 0221 000c 0103 0004 0048 8008 0101 0000 .!.......H......
& W. @! W4 I' Q! m 0x0020: 0000 0000 0000 0000 0000 0000 0000 0000 ................* Y4 T' r+ U7 o/ W
0x0030: 0000 0000 0000 0000 0000 0000 ............
9 W+ N' X& v6 d, @( t22:05:50.795926 b4:41:7a:0e:0b:00 (oui Unknown) > Broadcast, ethertype PPPoE D (0x8863), length 60: PPPoE PADI [Host-Uniq 0x00488008] [Service-Name]& c* i @+ U5 T5 E* r- q. l
0x0000: ffff ffff ffff b441 7a0e 0b00 8863 1109 .......Az....c.., e& P! K' `. G$ ?* @# l
0x0010: 0000 000c 0103 0004 0048 8008 0101 0000 .........H......
* m- q! d8 |: R( S. x 0x0020: 0000 0000 0000 0000 0000 0000 0000 0000 ................! j4 [* y( P* T9 ?' t
0x0030: 0000 0000 0000 0000 0000 0000 ............
: g* x5 S0 ^: I0 L2 m22:05:52.380082 00:15:eb:6a:a4:b7 (oui Unknown) > Broadcast, ethertype 802.1Q (0x8100), length 594: vlan 85, p 0, ethertype IPv4, (tos 0x0, ttl 64, id 17589, offset 0, flags [none], proto UDP (17), length 576)
1 v- o5 R2 M( U5 _9 S% ~ 0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 00:15:eb:6a:a4:b7 (oui Unknown), length 548, xid 0xdf11aa19, Flags [none] (0x0000)
; i8 B/ P3 {! J/ _# j: o Client-Ethernet-Address 00:15:eb:6a:a4:b7 (oui Unknown)1 Y5 ^' V9 c F* Y* ?$ H% \# y4 L
Vendor-rfc1048 Extensions
$ `1 \# o0 P A! @& x# [8 T Magic Cookie 0x63825363
\) d' M5 t+ Y' U7 S* A DHCP-Message Option 53, length 1: Discover# O$ Z: W: C7 _% C
Parameter-Request Option 55, length 8: 5 g L% m9 x$ \! C) m
Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname
y( Z; J7 C6 I Domain-Name, BR, Router-Discovery, Static-Route
$ W& | z4 e- P Hostname Option 12, length 32: "ea1001000000004000000015EB6AA4B7"
- R. J9 G D4 q/ v q Vendor-Class Option 60, length 53: "^@^@^_1^A%!M-x!M-Y^L^@<M-5D^@^@^@^@^@^@M-YM-xM-vJM-{M-p^PM-S M-^I^GM-|M-^JM-RWM-[M-lM->?M-;M-gM-@^]M-j^OM-^YM-'^AM-@M-^_sb"
* b+ R; q" w' L* M/ ?" T3 I3 ^6 G2 G* \ END Option 255, length 0; l) `: T: h: _. i6 M7 b8 n% G7 p
PAD Option 0, length 0, occurs 205
# H& b/ K; b3 e& W5 h% I2 o/ n! A 0x0000: ffff ffff ffff 0015 eb6a a4b7 8100 0055 .........j.....U: a0 v3 \: X- Q4 i
0x0010: 0800 4500 0240 44b5 0000 4011 33f9 0000 ..E..@D...@.3...9 H# v; d! S" h1 l, h$ M! M) d
0x0020: 0000 ffff ffff 0044 0043 022c faa4 0101 .......D.C.,....( u- k, d" B9 w% g# G6 P
0x0030: 0600 df11 aa19 0000 0000 0000 0000 0000 ................
( R3 y$ h$ [4 n+ m* d3 J# E 0x0040: 0000 0000 0000 0000 0000 0015 eb6a a4b7 .............j..: H# q! C2 |6 c% ^1 Q4 H, Q2 C
0x0050: 0000 0000 0000 0000 0000 0000 0000 0000 ................/ }) s/ b0 v m( n
0x0060: 0000 0000 0000 0000 0000 0000 0000 0000 ................2 |; y( R! M2 q0 `3 l+ q
0x0070: 0000 0000 0000 0000 0000 0000 0000 0000 ................* G h6 `, k/ X# q
0x0080: 0000 0000 0000 0000 0000 0000 0000 0000 ................# z6 Q0 D, Y5 K; L
0x0090: 0000 0000 0000 0000 0000 0000 0000 0000 ................
, Y, h# X! k6 F* }; e/ t( v 0x00a0: 0000 0000 0000 0000 0000 0000 0000 0000 ................; | R( A' ^" Y1 T1 l2 H
0x00b0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
& N7 W- M* s' q$ [. d 0x00c0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
& U* |! s5 v# N( {5 |5 D0 h 0x00d0: 0000 0000 0000 0000 0000 0000 0000 0000 ................1 v- w5 O2 r, D' u; T
0x00e0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
1 b4 W+ y0 a% J5 T& Y; a 0x00f0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
- w0 @' y% Y3 H- o 0x0100: 0000 0000 0000 0000 0000 0000 0000 0000 ................& l# ?) N6 n5 `7 n9 I
0x0110: 0000 0000 0000 0000 0000 6382 5363 3501 ..........c.Sc5.
# k' H6 r/ Y! C 0x0120: 0137 0801 0306 0c0f 1c1f 210c 2065 6131 .7........!..ea1% O2 l. V1 o! [7 m3 d! h4 \3 }
0x0130: 3030 3130 3030 3030 3030 3034 3030 3030 0010000000040000* q& @% [5 p1 I- u, v4 G& N3 R8 x" N& `6 @
0x0140: 3030 3031 3545 4236 4141 3442 373c 3500 00015EB6AA4B7<5.
- T: ~, n4 F# d, ~) f 0x0150: 001f 3101 2521 f821 d90c 003c b544 0000 ..1.%!.!...<.D..1 ], d4 ?( \- W+ C! S9 M3 i" q
0x0160: 0000 0000 d9f8 f64a fbf0 10d3 2089 07fc .......J........
6 v- g/ b5 V$ [; ? 0x0170: 8ad2 57db ecbe 3fbb e7c0 1dea 0f99 a701 ..W...?......... r. |- L" n' [/ Q
0x0180: c09f 7362 ff00 0000 0000 0000 0000 0000 ..sb............
9 M( ~! g T# A) L 0x0190: 0000 0000 0000 0000 0000 0000 0000 0000 ................
. S6 R9 c, y4 r% |9 o0 j7 L0 z 0x01a0: 0000 0000 0000 0000 0000 0000 0000 0000 ................" q, o# _1 \) o1 N5 \
0x01b0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
1 `2 H$ q: n! [0 R4 W 0x01c0: 0000 0000 0000 0000 0000 0000 0000 0000 ................, k0 ]0 X/ a7 f9 P- x( \
0x01d0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
% }: }* W$ b$ A 0x01e0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
; R( x" C; c' H0 E) b( Y 0x01f0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
1 V: t" G4 o2 Q$ O$ L1 B 0x0200: 0000 0000 0000 0000 0000 0000 0000 0000 ................8 W( l k- D8 D7 ]
0x0210: 0000 0000 0000 0000 0000 0000 0000 0000 ................
+ F* H6 ?4 l. m$ P' u! l: C& R2 ? 0x0220: 0000 0000 0000 0000 0000 0000 0000 0000 ................1 {' V) t+ ~4 T; }- s+ W m/ e
0x0230: 0000 0000 0000 0000 0000 0000 0000 0000 ................# K! e3 y9 ]: N! l( M
0x0240: 0000 0000 0000 0000 0000 0000 0000 0000 ................
9 N; N- }& Y- q! u 0x0250: 0000 ..
! J8 w5 h3 ^: i0 ~22:05:52.803210 b4:41:7a:0e:0b:00 (oui Unknown) > Broadcast, ethertype PPPoE D (0x8863), length 60: PPPoE PADI [Service-Name] [Host-Uniq 0x00488008]6 [" R) E0 @. H" x
0x0000: ffff ffff ffff b441 7a0e 0b00 8863 1109 .......Az....c..
) @9 |/ m& @0 k$ c# r8 j 0x0010: 0000 000c 0101 0000 0103 0004 0048 8008 .............H..) W) w# d/ p" m4 Z4 E
0x0020: 0000 0000 0000 0000 0000 0000 0000 0000 ................/ s; `. o6 X% J/ q3 Y
0x0030: 0000 0000 0000 0000 0000 0000 ............' N0 K, s9 ~: B
22:05:54.385241 b4:41:7a:0e:0b:02 (oui Unknown) > Broadcast, ethertype 802.1Q (0x8100), length 298: vlan 46, p 0, ethertype IPv4, (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 280)' y! S& H* T7 k, W
0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from b4:41:7a:0e:0b:02 (oui Unknown), length 252, xid 0x12a01185, Flags [none] (0x0000)/ R1 x' U; {( b5 C3 l& H7 q
Client-Ethernet-Address b4:41:7a:0e:0b:02 (oui Unknown)
& F+ ?9 K% W" t' M' P0 L& I! b( _ Vendor-rfc1048 Extensions
' [* B, M6 X+ I ]0 ]( I0 ^6 L5 E Magic Cookie 0x63825363
# }) Q* c2 ~& L2 h6 b DHCP-Message Option 53, length 1: Discover
. Y, F% P$ B- r: j R2 |2 x Parameter-Request Option 55, length 6:
X! V7 D1 n# K# z7 @) L- e3 B Y Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname$ p" G, X7 k" }; A# v8 ^' G1 `
Domain-Name, BR# c' u. y/ Z) N
END Option 255, length 0
2 @$ V! H9 y; J: y+ s( T+ ^ 0x0000: ffff ffff ffff b441 7a0e 0b02 8100 002e .......Az.......
1 Z% B9 I1 z' C0 f |8 Y 0x0010: 0800 4500 0118 0000 0000 4011 79d6 0000 ..E.......@.y...& `/ L" Z$ o. \: c* N. I9 l
0x0020: 0000 ffff ffff 0044 0043 0104 79b4 0101 .......D.C..y...
- [( ]4 |2 J( { 0x0030: 0600 12a0 1185 0000 0000 0000 0000 0000 ................
% }) \( w3 q6 P. \; ~: h 0x0040: 0000 0000 0000 0000 0000 b441 7a0e 0b02 ...........Az...5 U1 C# z: t' F g
0x0050: 0000 0000 0000 0000 0000 0000 0000 0000 ................
, L B! y; a/ l0 |2 h 0x0060: 0000 0000 0000 0000 0000 0000 0000 0000 ................
! t" {' J2 n4 _5 g( o- t 0x0070: 0000 0000 0000 0000 0000 0000 0000 0000 ................/ E; \+ o" ?- x2 l
0x0080: 0000 0000 0000 0000 0000 0000 0000 0000 ................
3 J _/ G) ^$ _ 0x0090: 0000 0000 0000 0000 0000 0000 0000 0000 ................0 V9 J6 D" U6 b N
0x00a0: 0000 0000 0000 0000 0000 0000 0000 0000 ................7 n" J9 {. t L+ b0 c" r/ `
0x00b0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
9 _+ O: T1 h/ |/ S5 V: X7 K 0x00c0: 0000 0000 0000 0000 0000 0000 0000 0000 ................- `0 M* t0 B1 ?5 f. B, Y
0x00d0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
5 p3 S( t/ K6 w) X* L. Y 0x00e0: 0000 0000 0000 0000 0000 0000 0000 0000 ................, U" M! C9 x; ?( a' f$ S; b
0x00f0: 0000 0000 0000 0000 0000 0000 0000 0000 ................7 s r# ]) A2 j/ M" A
0x0100: 0000 0000 0000 0000 0000 0000 0000 0000 ................
- w' Y! }$ u; R8 g 0x0110: 0000 0000 0000 0000 0000 6382 5363 3501 ..........c.Sc5.# q- I# I0 b; r7 f/ ^ w7 U; y
0x0120: 0137 0601 0306 0c0f 1cff .7........3 T9 V6 g1 v9 G% g
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