![](/user_photo/2706_HbeT2.jpg)
![](/html/2706/595/html_d7sAPww4jA.oTql/htmlconvd-1LaZMK81x1.jpg)
DHCP Relay (Option 82) –
DHCP Relay
![](/html/2706/595/html_d7sAPww4jA.oTql/htmlconvd-1LaZMK82x1.jpg)
DHCP Relay (Option 82) –
DHCP Relay
•Option 82 Relay Agent (
)
DHCP –
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• RFC 3046.
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DHCP option 82 |
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DHCP Relay Agent- |
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DHCP option 82 DES-3526/DES-3550 |
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Circuit ID: |
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DHCP - |
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Circuit ID |
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VLAN: |
VLAN ID |
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Unit ID. |
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DHCP - |
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Remote ID: |
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MAC address |
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Relay Agent |
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DHCP – |
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Remote ID |
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MAC- |
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remote ID |
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![](/html/2706/595/html_d7sAPww4jA.oTql/htmlconvd-1LaZMK85x1.jpg)
Circuit ID
9 = 1001 4
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Circuit ID 0106000400010009
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VLAN |
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01 ( |
Agent Circuit ID) |
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Circuit ID |
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5.VLAN: VLAN ID DHCP –
. 0001
6.:
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0;
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Unit ID. 00
7.:
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DHCP –
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1. 09
![](/html/2706/595/html_d7sAPww4jA.oTql/htmlconvd-1LaZMK86x1.jpg)
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Remote ID: |
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Remote ID |
02080006000F3D849FFF |
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0080c835260a |
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MAC address |
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Agent Remote ID) |
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Remote ID 00 |
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. 0080C835260A |
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Circuit ID |
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00040001000900060080c835260a |
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(0106)000400010009 |
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DHCP – |
IP- |
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(0208)00060080c835260a |
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Remote ID |
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![](/html/2706/595/html_d7sAPww4jA.oTql/htmlconvd-1LaZMK87x1.jpg)
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Option 82 |
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1 |
VLAN V2 |
VLAN Default |
2 |
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11.10.10.1/8 |
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1-12 |
13-24 |
10.10.10.1/8 |
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L3 |
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DGS-3324SR |
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L2 |
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DES 3526 |
DHCP - |
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9 |
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11.10.10.100/8 |
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10.10.10.101/8 |
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10.10.10.1/8 |
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IP Pool: |
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11.10.10.101- |
1. DHCP - |
10.10.10.101 |
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10.0.0.0/8 |
11.10.10.200 |
2. L3,
2-
10.10.10.1
10.0.0.0/8
11.10.10.1 11.0.0.0/8
3. L2 (DES-3526/DES-3550)
DHCP Relay Agent 11.10.10.100
11.0.0.0/8
MAC – 00-80-C8-35-26-0A
4.2 ,
DHCP –
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L2 -
9,
10
![](/html/2706/595/html_d7sAPww4jA.oTql/htmlconvd-1LaZMK88x1.jpg)
DHCP Option 82
1.DHCP – IP-
11.10.10.101 – 11.10.10.200
IP-
DHCP –
,
DHCP Relay Agent-
10.10.10.100 (
DHCP –
,
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9
10,
IP-
.)
--- DHCP –
2.-
DHCP –
9
L2, DHCP –
IP-
11.10.10.9;
DHCP –
10
L2, DHCP –
IP-
11.10.10.10. (
, DHCP –
,
9
,
IP-
11.10.10.9)
--- DHCP –
option 82
![](/html/2706/595/html_d7sAPww4jA.oTql/htmlconvd-1LaZMK89x1.jpg)
config vlan default delete 1:1-1:12 create vlan v2 tag 2
config vlan v2 add untagged 1:1-1:12
# IP-
VLAN 2
default config ipif System ipaddress 10.10.10.1/8
create ipif p2 11.10.10.1/8 v2 save
L2 (DES-3526/DES-3550):
config ipif System ipaddress 11.10.10.100/8
# create iproute default 11.10.10.1
# DHCP Relay
config dhcp_relay add ipif System 10.10.10.101
config dhcp_relay option_82 state enable
enable dhcp_relay
save
![](/html/2706/595/html_d7sAPww4jA.oTql/htmlconvd-1LaZMK90x1.jpg)
DHCP
– - 1
DHCP –
,
”haneWIN” DHCP –
. (http://www.hanewin.de/homee.htm)
“Basic Profile”
•Relay IP : 11.10.10.100
IP-
:
• 11.10.10.101
11.10.10.200
•: 255.0.0.0
•: 11.10.10.1