DHCP server è ðîóòåð Asus

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11-02-2010, 14:28
gurush

Quote:

Originally Posted by Basile

À âû ïðîáîâàëè ïðîïèñàòü MAC-àäðåñ ñâîåé ñåòåâîé êàðòû? Ïî-ìîåìó, çäåñü MAC âàøåãî ðîóòåðà:

Äà, êîíå÷íî ïðîáîâàë.
ß íå ïîíèìàþ òîëüêî îäíîãî - ïîëüçîâàòåëè ýòîé ñåòè íà ëîêàëüíîì ôîðóìå ãîâîðÿò ïðî ðàáîòàþùèå ðîóòåðû. Â ÷åì âûäåëåíîñòü èìåííî ìîåãî ïîäêëþ÷åíèÿ äëÿ ìåíÿ çàãàäêà.
Ïðåäïîëîæåíèå òîëüêî òî, ÷òî â ìîåì ñåãìåíòå ñåòè êàêîé-òî êðèâîé DHCP ñåðâåð. Íî ïðåòåíçèè ïðîâàéäåðó íå ïðåäúÿâèøü - êîìï òî âñå íîðìàëüíî ïîíèìàåò.

Âñå æå ó ìåíÿ ïðîñòîé âîïðîñ: ìîæíî ëè (è êàê ýòî ñäåëàòü) èñïðàâèòü íàñòðîéêè dhcp êëèåíòà òàê, ÷òîáû îí ïî-äðóãîìó ôîðìèðîâàë discover ñîîáùåíèå?

To lly: ñêà÷àë ëèíóêñ - ïîïðîáóþ íà äíÿõ ïîèãðàòüñÿ ñ íèì.
11-02-2010, 15:57
Basile

Ñáðîñüòå ðîóòåð. Íàñòðîéòå âñå çàíîâî (UPnP ñðàçó æå âûêëþ÷èòü). Åñëè ðàáîòàòü íå áóäåò, ïðèâîäèòå ñêðèíøîòû âñåõ íàñòðîåê
11-02-2010, 16:03
lly

Quote:

Originally Posted by Basile

Ñáðîñüòå ðîóòåð. Íàñòðîéòå âñå çàíîâî (UPnP ñðàçó æå âûêëþ÷èòü). Åñëè ðàáîòàòü íå áóäåò, ïðèâîäèòå ñêðèíøîòû âñåõ íàñòðîåê

Ñóäÿ ïî ïðèâåäåííîìó äàìïó ïàêåòà DHCP discover ñ ðîóòåðà, íèêàêèõ ïîêàçàíèé ê ñáðîñó íåò, åæåëè òîëüêî àâòîð íå âîòêíóë ïðîâîä WAN â äðóãóþ äûðêó ;)

Quote:

Originally Posted by gurush

Âñå æå ó ìåíÿ ïðîñòîé âîïðîñ: ìîæíî ëè (è êàê ýòî ñäåëàòü) èñïðàâèòü íàñòðîéêè dhcp êëèåíòà òàê, ÷òîáû îí ïî-äðóãîìó ôîðìèðîâàë discover ñîîáùåíèå?

Ó udhcpc êó÷à êëþ÷åé, íî âñ¸-æå íåêîòîðûå ïîëÿ ôîðìèðóþòñÿ àâòîìàòè÷åñêè.
12-02-2010, 10:06
gurush

Èòàê Ubuntu 9.10 äàåò ñëåäóþùèé äàìï ïðè ïîäêëþ÷åíèè ê ñåòè ïî DHCP

ubuntu@ubuntu:~$ sudo tcpdump -i eth0 -s 1500 -n -vvv port 67 or port 68
tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 1500 bytes
23:49:11.942570 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 328)
0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request from 00:0e:7b:20:e0:8c, length 300, xid 0xc5589c28, Flags [none] (0x0000)
Client-Ethernet-Address 00:0e:7b:20:e0:8c
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Hostname Option 12, length 6: "ubuntu"
Parameter-Request Option 55, length 13:
Subnet-Mask, BR, Time-Zone, Default-Gateway
Domain-Name, Domain-Name-Server, Option 119, Hostname
Netbios-Name-Server, Netbios-Scope, MTU, Classless-Static-Route
NTP
END Option 255, length 0
PAD Option 0, length 0, occurs 33

23:49:12.946444 IP (tos 0x0, ttl 61, id 33074, offset 0, flags [DF], proto UDP (17), length 347)
10.38.4.1.67 > 10.38.5.131.68: [udp sum ok] BOOTP/DHCP, Reply, length 319, hops 2, xid 0xc5589c28, Flags [none] (0x0000)
Your-IP 10.38.5.131
Gateway-IP 10.38.4.1
Client-Ethernet-Address 00:0e:7b:20:e0:8c
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Offer
Server-ID Option 54, length 4: 10.0.0.6
Lease-Time Option 51, length 4: 432000
Subnet-Mask Option 1, length 4: 255.255.254.0
Default-Gateway Option 3, length 4: 10.38.4.1
Domain-Name Option 15, length 15: "users.trc.local"
Domain-Name-Server Option 6, length 8: 10.0.0.120,10.0.0.185
Classless-Static-Route Option 121, length 22: (192.168.10.0/24:10.38.4.1),(192.168.0.0/21:10.38.4.1),(10.0.0.0/8:10.38.4.1)
END Option 255, length 0

23:49:12.946738 IP (tos 0x10, ttl 128, id 0, offset 0, flags [none], proto UDP (17), length 328)
0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request from 00:0e:7b:20:e0:8c, length 300, xid 0xc5589c28, Flags [none] (0x0000)
Client-Ethernet-Address 00:0e:7b:20:e0:8c
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Request
Server-ID Option 54, length 4: 10.0.0.6
Requested-IP Option 50, length 4: 10.38.5.131
Hostname Option 12, length 6: "ubuntu"
Parameter-Request Option 55, length 13:
Subnet-Mask, BR, Time-Zone, Default-Gateway
Domain-Name, Domain-Name-Server, Option 119, Hostname
Netbios-Name-Server, Netbios-Scope, MTU, Classless-Static-Route
NTP
END Option 255, length 0
PAD Option 0, length 0, occurs 21

23:49:13.003114 IP (tos 0x0, ttl 61, id 33078, offset 0, flags [DF], proto UDP (17), length 347)
10.38.4.1.67 > 10.38.5.131.68: [udp sum ok] BOOTP/DHCP, Reply, length 319, hops 2, xid 0xc5589c28, Flags [none] (0x0000)
Your-IP 10.38.5.131
Gateway-IP 10.38.4.1
Client-Ethernet-Address 00:0e:7b:20:e0:8c
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: ACK
Server-ID Option 54, length 4: 10.0.0.6
Lease-Time Option 51, length 4: 432000
Subnet-Mask Option 1, length 4: 255.255.254.0
Default-Gateway Option 3, length 4: 10.38.4.1
Domain-Name Option 15, length 15: "users.trc.local"
Domain-Name-Server Option 6, length 8: 10.0.0.120,10.0.0.185
Classless-Static-Route Option 121, length 22: (192.168.10.0/24:10.38.4.1),(192.168.0.0/21:10.38.4.1),(10.0.0.0/8:10.38.4.1)
END Option 255, length 0
12-02-2010, 10:28
lly
Quote:

Originally Posted by gurush

Èòàê Ubuntu 9.10 äàåò ñëåäóþùèé äàìï ïðè ïîäêëþ÷åíèè ê ñåòè ïî DHCP

Ò.å. ñ ðîäíûì (ïîëíûì) dhcp êëèåíòîì âñ¸ ïîëó÷àåò êîððåêòíî, òàê? ß â ýòîì ïî÷òè áûë óâåðåí.

Âèäèìàÿ ðàçíèöà:
1. tos (0x10 âìåñòî 0x0)
2. ttl (128 âìåñòî 64 - íå äîëæíî ðîÿëèòü, òîëüêî åñëè ïðîâàéäåð íå áîðåòñÿ ñ ðîóòåðàìè)
3. âìåñòî Client-ID Option 61 èñïîëüçóåòñÿ Hostname Option 12
Ñìîæåøü ïîïûòàòüñÿ ïîëó÷èòü àäðåñ íà Ubuntu ïðè ïîìîùè udhcpc èç busybox 1.15?

P.S. Äëÿ çàäàíèÿ îïöèè 12 èç ï.3 íóæíî èñïîëüçîâàòü êëþ÷èê -H
12-02-2010, 10:43
theMIROn

Ë¸íÿ, â rc íåò ïîääåðæêè staticrouters (Classless-Static-Route Option 121), òîëüêî routes è msroutes.
12-02-2010, 10:46
lly

Quote:

Originally Posted by theMIROn

Ë¸íÿ, â rc íåò ïîääåðæêè staticrouters (Classless-Static-Route Option 121), òîëüêî routes è msroutes.

Ìíå êàæåòñÿ, ÷òî ñïèñîê òîãî, ÷åãî ìû õîòèì âèäåòü îò ñåðâåðà, âîîáùå íå äîëæåí âëèÿòü. Îòâåò, ïî ñëîâàì àâòîðà, íå ïðèõîäèò íà ðîóòåð âîîáùå!
12-02-2010, 12:49
theMIROn

Quote:

Originally Posted by lly

[*]âìåñòî Client-ID Option 61 èñïîëüçóåòñÿ Hostname Option 12

ñêîðåå âìåñòå, à íå âìåñòî.
12 option ëåãêî ìîæíî æ äîáàâèòü, íàäåþñü ïðîáëåìà èç-çà ýòîãî

ïëþñ ïî÷åìó ðàçìåðû ïàêåòîâ íàñòîëüêî ðàçíûå?
13-02-2010, 16:59
gurush

Quote:

Originally Posted by lly

Ñìîæåøü ïîïûòàòüñÿ ïîëó÷èòü àäðåñ íà Ubuntu ïðè ïîìîùè udhcpc èç busybox 1.15?

P.S. Äëÿ çàäàíèÿ îïöèè 12 èç ï.3 íóæíî èñïîëüçîâàòü êëþ÷èê -H

Êàþñü, îïöèþ -H íå çàäàë, à â îñòàëüíîì:

18:19:20.539471 IP (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 576)
0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request from 00:0e:7b:20:e0:8c, length 548, xid 0x968dab3d, Flags [none] (0x0000)
Client-Ethernet-Address 00:0e:7b:20:e0:8c
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Client-ID Option 61, length 7: ether 00:0e:7b:20:e0:8c
Vendor-Class Option 60, length 12: "udhcp 1.15.3"
MSZ Option 57, length 2: 576
Parameter-Request Option 55, length 7:
Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname
Domain-Name, BR, NTP
END Option 255, length 0
PAD Option 0, length 0, occurs 268

18:19:20.712434 IP (tos 0x0, ttl 61, id 50758, offset 0, flags [DF], proto UDP (17), length 328)
10.38.4.1.67 > 10.38.4.142.68: [udp sum ok] BOOTP/DHCP, Reply, length 300, hops 2, xid 0x968dab3d, Flags [none] (0x0000)
Your-IP 10.38.4.142
Gateway-IP 10.38.4.1
Client-Ethernet-Address 00:0e:7b:20:e0:8c
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Offer
Server-ID Option 54, length 4: 10.0.0.6
Lease-Time Option 51, length 4: 432000
Subnet-Mask Option 1, length 4: 255.255.254.0
Default-Gateway Option 3, length 4: 10.38.4.1
Domain-Name-Server Option 6, length 8: 10.0.0.120,10.0.0.185
Domain-Name Option 15, length 15: "users.trc.local"
END Option 255, length 0
PAD Option 0, length 0, occurs 5

18:19:20.723454 IP (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 576)
0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request from 00:0e:7b:20:e0:8c, length 548, xid 0x968dab3d, Flags [none] (0x0000)
Client-Ethernet-Address 00:0e:7b:20:e0:8c
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Request
Client-ID Option 61, length 7: ether 00:0e:7b:20:e0:8c
Vendor-Class Option 60, length 12: "udhcp 1.15.3"
Requested-IP Option 50, length 4: 10.38.4.142
Server-ID Option 54, length 4: 10.0.0.6
Parameter-Request Option 55, length 7:
Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname
Domain-Name, BR, NTP
END Option 255, length 0
PAD Option 0, length 0, occurs 260

18:19:20.747335 IP (tos 0x0, ttl 61, id 50762, offset 0, flags [DF], proto UDP (17), length 328)
10.38.4.1.67 > 10.38.4.142.68: [udp sum ok] BOOTP/DHCP, Reply, length 300, hops 2, xid 0x968dab3d, Flags [none] (0x0000)
Your-IP 10.38.4.142
Gateway-IP 10.38.4.1
Client-Ethernet-Address 00:0e:7b:20:e0:8c
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: ACK
Server-ID Option 54, length 4: 10.0.0.6
Lease-Time Option 51, length 4: 432000
Subnet-Mask Option 1, length 4: 255.255.254.0
Default-Gateway Option 3, length 4: 10.38.4.1
Domain-Name-Server Option 6, length 8: 10.0.0.120,10.0.0.185
Domain-Name Option 15, length 15: "users.trc.local"
END Option 255, length 0
PAD Option 0, length 0, occurs 5
13-02-2010, 17:22
theMIROn

Quote:

Originally Posted by gurush

Ïîñòàâèë 1.9.2.7-d - íå ïîìîãëî.
Îòíîñèòåëüíî ñòàíäàðòà DHCP - ñíÿë íîâûé dump, íî ïîêà íå óñïåë ðàçîáðàòüñÿ.

òàê, íóæåí äàìï ñ ðîóòåðà èìåííî íà 1.9.2.7-d ïðîøèâêå.
çàïóñêàòü êàê udhcpc -i vlan1 -s /tmp/udhcpc -b -H hostname è äîæäàòüñÿ âñåõ 3õ çàïðîñîâ
13-02-2010, 18:32
gurush

Quote:

Originally Posted by theMIROn

òàê, íóæåí äàìï ñ ðîóòåðà èìåííî íà 1.9.2.7-d ïðîøèâêå.
çàïóñêàòü êàê udhcpc -i vlan1 -s /tmp/udhcpc -b -H hostname è äîæäàòüñÿ âñåõ 3õ çàïðîñîâ

êàê ðàç çàíèìàëñÿ âñÿêîãî ðîäà ýêñïåðèìåíòàìè ñ ðîóòåðîì:

âîò äàìï ïðÿìî ñ áèòàìè

00:42:19.572102 00:1a:92:96:fb:0f > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 590: (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 576)
0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request from 00:1a:92:96:fb:0f, length 548, xid 0x1cf50970, secs 3, Flags [none] (0x0000)
Client-Ethernet-Address 00:1a:92:96:fb:0f
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Client-ID Option 61, length 7: ether 00:1a:92:96:fb:0f
Hostname Option 12, length 9: "bigmobile"
Vendor-Class Option 60, length 12: "udhcp 1.15.3"
Requested-IP Option 50, length 4: 10.38.4.151
MSZ Option 57, length 2: 576
Parameter-Request Option 55, length 9:
Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname
Domain-Name, BR, Static-Route, NTP
Classless-Static-Route-Microsoft
END Option 255, length 0
PAD Option 0, length 0, occurs 249
0x0000: 4500 0240 0000 0000 4011 78ae 0000 0000
0x0010: ffff ffff 0044 0043 022c bd52 0101 0600
0x0020: 1cf5 0970 0003 0000 0000 0000 0000 0000
0x0030: 0000 0000 0000 0000 001a 9296 fb0f 0000
0x0040: 0000 0000 0000 0000 0000 0000 0000 0000
0x0050: 0000 0000 0000 0000 0000 0000 0000 0000
0x0060: 0000 0000 0000 0000 0000 0000 0000 0000
0x0070: 0000 0000 0000 0000 0000 0000 0000 0000
0x0080: 0000 0000 0000 0000 0000 0000 0000 0000
0x0090: 0000 0000 0000 0000 0000 0000 0000 0000
0x00a0: 0000 0000 0000 0000 0000 0000 0000 0000
0x00b0: 0000 0000 0000 0000 0000 0000 0000 0000
0x00c0: 0000 0000 0000 0000 0000 0000 0000 0000
0x00d0: 0000 0000 0000 0000 0000 0000 0000 0000
0x00e0: 0000 0000 0000 0000 0000 0000 0000 0000
0x00f0: 0000 0000 0000 0000 0000 0000 0000 0000
0x0100: 0000 0000 0000 0000 6382 5363 3501 013d
0x0110: 0701 001a 9296 fb0f 0c09 6269 676d 6f62
0x0120: 696c 653c 0c75 6468 6370 2031 2e31 352e
0x0130: 3332 040a 2604 9739 0202 4037 0901 0306
0x0140: 0c0f 1c21 2af9 ff00 0000 0000 0000 0000
0x0150: 0000 0000 0000 0000 0000 0000 0000 0000
0x0160: 0000 0000 0000 0000 0000 0000 0000 0000
0x0170: 0000 0000 0000 0000 0000 0000 0000 0000
0x0180: 0000 0000 0000 0000 0000 0000 0000 0000
0x0190: 0000 0000 0000 0000 0000 0000 0000 0000
0x01a0: 0000 0000 0000 0000 0000 0000 0000 0000
0x01b0: 0000 0000 0000 0000 0000 0000 0000 0000
0x01c0: 0000 0000 0000 0000 0000 0000 0000 0000
0x01d0: 0000 0000 0000 0000 0000 0000 0000 0000
0x01e0: 0000 0000 0000 0000 0000 0000 0000 0000
0x01f0: 0000 0000 0000 0000 0000 0000 0000 0000
0x0200: 0000 0000 0000 0000 0000 0000 0000 0000
0x0210: 0000 0000 0000 0000 0000 0000 0000 0000
0x0220: 0000 0000 0000 0000 0000 0000 0000 0000
0x0230: 0000 0000 0000 0000 0000 0000 0000 0000

îòëè÷èå óâèäåë òîëüêî â ïîëå "secs 3" - â äðóãèõ ïàêåòàõ íå âñòðå÷àë.

ß âîò äóìàþ - dhcp ñåðâåð offer îòïðàâëÿåò íå øèðîêîâåùàòåëüíî, à íà êîíêðåòíûé ip, êàê ýòî ñðàáàòûâàåò, åñëè ip åùå íå ïîëó÷åí? Ìîæåò â ýòîì çàãâîçäêà.

P.S. îòíîñèòåëüíî òîãî ïðàâèëüíî ëè âîòêíóò ïðîâîä - ÿ âèæó ïàêåòû îò äðóãèõ êîìïîâ â ñåòè - inform è request
13-02-2010, 19:02
lly

Quote:

Originally Posted by gurush

êàê ðàç çàíèìàëñÿ âñÿêîãî ðîäà ýêñïåðèìåíòàìè ñ ðîóòåðîì:

×òî-òî ñòðàííîå - îòêóäà âçÿëîñü ÝÒÎ â çàïðîñå:

Quote:

Requested-IP Option 50, length 4: 10.38.4.151

??? Ðîóòåð ñìîã ïîëó÷èòü àäðåñ, èëè â âåá èíòåðôåéñå ïðîáèò static??! Èëè ëîã ñ êîìïà?

Quote:

îòëè÷èå óâèäåë òîëüêî â ïîëå "secs 3" - â äðóãèõ ïàêåòàõ íå âñòðå÷àë.

Íåêîòîðûå ïðîâàéäåðû íå ïåðåâàðèâàþò secs = 0, Îëåã åùå â 1.9.2.7-9 ñäåëàë ýòó çàòû÷êó. Íåóæåëè ó òåáÿ ïðÿìî ïðîòèâîïîëîæíûé ñëó÷àé?
Çàíóëèòü ïîëå, â äàííûé ìîìåíò, ìîæíî òîëüêî ïåðåñîáðàâ busybox ñ ïîäïðàâëåííûì
networking/udhcp/packet.c

Code:

#define SECS 3

Ñìîæåøü?

Quote:

P.S. îòíîñèòåëüíî òîãî ïðàâèëüíî ëè âîòêíóò ïðîâîä - ÿ âèæó ïàêåòû îò äðóãèõ êîìïîâ â ñåòè - inform è request

Âîò è îòâåò íà âîïðîñ ;)
13-02-2010, 19:20
theMIROn

Quote:

Originally Posted by gurush

ß âîò äóìàþ - dhcp ñåðâåð offer îòïðàâëÿåò íå øèðîêîâåùàòåëüíî, à íà êîíêðåòíûé ip, êàê ýòî ñðàáàòûâàåò, åñëè ip åùå íå ïîëó÷åí? Ìîæåò â ýòîì çàãâîçäêà.

P.S. îòíîñèòåëüíî òîãî ïðàâèëüíî ëè âîòêíóò ïðîâîä - ÿ âèæó ïàêåòû îò äðóãèõ êîìïîâ â ñåòè - inform è request

ìîæíî è ýòî ñûìèòèðîâàòü ñ êëþ÷åì -r è óêàçàíèåì ip.
êàê âàðèàíò - ñìåíèòü mac íà ðîóòåðå íà òîò, íà êîòîðûé òî÷íî ïðèõîäÿò îòâåòû, â ñåòè ìîãóò áûòü è êóëõàöêåðû

offer-û èäóò íà êàêîé dst?

EDIT: åñëè è ðàíüøå áûëè ïðîáëåìû ñ ðîóòåðàìè, ìîæíî ïîïðîáîâàòü âûñòàâèòü ñêîðîñòü wan ïîðòà â 10mbit full/half duplex
13-02-2010, 19:28
gurush

Quote:

Originally Posted by lly

×òî-òî ñòðàííîå - îòêóäà âçÿëîñü ÝÒÎ â çàïðîñå:

??? Ðîóòåð ñìîã ïîëó÷èòü àäðåñ, èëè â âåá èíòåðôåéñå ïðîáèò static??! Èëè ëîã ñ êîìïà?

Ýòî ðåçóëüòàò ìîèõ ýêñïåðèìåíòîâ - ïîäñòàâèë ðàíüøå ïðîñòî ñòàòè÷íûé ip è ïðîâåðèë ïðîõîäÿò ëè ïèíãè äî gateway - ïðîõîäÿò. À ñåé÷àñ çàïóñêàë ñ àâòîìàòè÷åñêèì ip, íî ïî âñåé âèäèìîñòè ãäå-òî ñòàðûé àäðåñ êåøèðóåòñÿ.

Quote:

Originally Posted by lly

Íåêîòîðûå ïðîâàéäåðû íå ïåðåâàðèâàþò secs = 0, Îëåã åùå â 1.9.2.7-9 ñäåëàë ýòó çàòû÷êó. Íåóæåëè ó òåáÿ ïðÿìî ïðîòèâîïîëîæíûé ñëó÷àé?
Çàíóëèòü ïîëå, â äàííûé ìîìåíò, ìîæíî òîëüêî ïåðåñîáðàâ busybox ñ ïîäïðàâëåííûì
networking/udhcp/packet.c

Code:

#define SECS 3

Ñìîæåøü?

Êàê ãîâîðèòñÿ:
"Íà ñêðèïêå èãðàòü óìååòå?
- Íå çíàþ, íå ïðîáîâàë"

Åùå âûòàùèë ïàêåò ñ Ubuntu â áèíàðíîì âèäå:

tcpdump: WARNING: eth0: no IPv4 address assigned
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 1500 bytes
20:56:09.635723 00:0e:7b:20:e0:8c > ff:ff:ff:ff:ff:ff, ethertype IPv4 (0x0800), length 590: (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 576)
0.0.0.0.68 > 255.255.255.255.67: [udp sum ok] BOOTP/DHCP, Request from 00:0e:7b:20:e0:8c, length 548, xid 0xc120a671, Flags [none] (0x0000)
Client-Ethernet-Address 00:0e:7b:20:e0:8c
Vendor-rfc1048 Extensions
Magic Cookie 0x63825363
DHCP-Message Option 53, length 1: Discover
Client-ID Option 61, length 7: ether 00:0e:7b:20:e0:8c
Hostname Option 12, length 9: "bigmobile"
Vendor-Class Option 60, length 12: "udhcp 1.15.3"
MSZ Option 57, length 2: 576
Parameter-Request Option 55, length 7:
Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname
Domain-Name, BR, NTP
END Option 255, length 0
PAD Option 0, length 0, occurs 257
0x0000: 4500 0240 0000 0000 4011 78ae 0000 0000
0x0010: ffff ffff 0044 0043 022c ce63 0101 0600
0x0020: c120 a671 0000 0000 0000 0000 0000 0000
0x0030: 0000 0000 0000 0000 000e 7b20 e08c 0000
0x0040: 0000 0000 0000 0000 0000 0000 0000 0000
0x0050: 0000 0000 0000 0000 0000 0000 0000 0000
0x0060: 0000 0000 0000 0000 0000 0000 0000 0000
0x0070: 0000 0000 0000 0000 0000 0000 0000 0000
0x0080: 0000 0000 0000 0000 0000 0000 0000 0000
0x0090: 0000 0000 0000 0000 0000 0000 0000 0000
0x00a0: 0000 0000 0000 0000 0000 0000 0000 0000
0x00b0: 0000 0000 0000 0000 0000 0000 0000 0000
0x00c0: 0000 0000 0000 0000 0000 0000 0000 0000
0x00d0: 0000 0000 0000 0000 0000 0000 0000 0000
0x00e0: 0000 0000 0000 0000 0000 0000 0000 0000
0x00f0: 0000 0000 0000 0000 0000 0000 0000 0000
0x0100: 0000 0000 0000 0000 6382 5363 3501 013d
0x0110: 0701 000e 7b20 e08c 0c09 6269 676d 6f62
0x0120: 696c 653c 0c75 6468 6370 2031 2e31 352e
0x0130: 3339 0202 4037 0701 0306 0c0f 1c2a ff00
0x0140: 0000 0000 0000 0000 0000 0000 0000 0000
0x0150: 0000 0000 0000 0000 0000 0000 0000 0000
0x0160: 0000 0000 0000 0000 0000 0000 0000 0000
0x0170: 0000 0000 0000 0000 0000 0000 0000 0000
0x0180: 0000 0000 0000 0000 0000 0000 0000 0000
0x0190: 0000 0000 0000 0000 0000 0000 0000 0000
0x01a0: 0000 0000 0000 0000 0000 0000 0000 0000
0x01b0: 0000 0000 0000 0000 0000 0000 0000 0000
0x01c0: 0000 0000 0000 0000 0000 0000 0000 0000
0x01d0: 0000 0000 0000 0000 0000 0000 0000 0000
0x01e0: 0000 0000 0000 0000 0000 0000 0000 0000
0x01f0: 0000 0000 0000 0000 0000 0000 0000 0000
0x0200: 0000 0000 0000 0000 0000 0000 0000 0000
0x0210: 0000 0000 0000 0000 0000 0000 0000 0000
0x0220: 0000 0000 0000 0000 0000 0000 0000 0000
0x0230: 0000 0000 0000 0000 0000 0000 0000 0000

Íà ýòîò ïàêåò offer ïðèõîäèò.
13-02-2010, 19:51
lly

Quote:

Originally Posted by gurush

Ýòî ðåçóëüòàò ìîèõ ýêñïåðèìåíòîâ - ïîäñòàâèë ïðîñòî ñòàòè÷íûé ip è ïðîâåðèë ïðîõîäÿò ëè ïèíãè äî gateway - ïðîõîäÿò;

Íó òû òàê áîëüøå íå ïóãàé è âñ¸-æå ïîïðîáóé ñìåíèòü MAC, êàê íàïèñàë theMIROn

Quote:

Êàê ãîâîðèòñÿ:
"Íà ñêðèïêå èãðàòü óìååòå?
- Íå çíàþ, íå ïðîáîâàë"

Íó ïîïðîáóé c secs = 0

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