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[求助] DHCP中继问题

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发表于 2014-3-26 15:41:58 | 显示全部楼层 |阅读模式
DHCP 中继.png
如图:client2属于vlan2,sw1上创建vlan2,将ge0/0/1加入vlan2,ge0/0/2和SW2的GE0/0/1属于trunk,SW2模拟DHCP服务器,SW1配置中继,但是client2获取不了IP地址,有出现GIADDR等于0的地址,配置不了相信option82选项,下面的配置文件,请大神帮我分析

SW1

[sw1]dis cur
#
sysname sw1
#
vlan batch 2
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
dhcp enable
#
diffserv domain default
#
drop-profile default
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
ip address 192.168.2.1 255.255.255.0
#
interface Vlanif2
ip address 192.168.1.254 255.255.255.0
dhcp select relay
dhcp relay information enable
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
port link-type access
port default vlan 2
#
interface GigabitEthernet0/0/2
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/3
#
interface GigabitEthernet0/0/4
#
interface GigabitEthernet0/0/5
#
interface GigabitEthernet0/0/6
#
interface GigabitEthernet0/0/7
#
interface GigabitEthernet0/0/8
#
interface GigabitEthernet0/0/9
#
interface GigabitEthernet0/0/10
#
interface GigabitEthernet0/0/11
#
interface GigabitEthernet0/0/12
#
interface GigabitEthernet0/0/13
#
interface GigabitEthernet0/0/14
#
interface GigabitEthernet0/0/15
#
interface GigabitEthernet0/0/16
#
interface GigabitEthernet0/0/17
#
interface GigabitEthernet0/0/18
#
interface GigabitEthernet0/0/19
#
interface GigabitEthernet0/0/20
#
interface GigabitEthernet0/0/21
#
interface GigabitEthernet0/0/22
#
interface GigabitEthernet0/0/23
#
interface GigabitEthernet0/0/24
#
interface NULL0
#
user-interface con 0
idle-timeout 0 0
user-interface vty 0 4
#
return


SW2

[SW2]dis cur
#
sysname SW2
#
vlan batch 2
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
dhcp enable
#
diffserv domain default
#
drop-profile default
#
ip pool vlan2
gateway-list 192.168.1.254
network 192.168.1.0 mask 255.255.255.0
lease day 0 hour 2 minute 0
dns-list 101.202.33.33
#
aaa
authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password simple admin
local-user admin service-type http
#
interface Vlanif1
ip address 192.168.2.2 255.255.255.0
#
interface Vlanif2
dhcp select global
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/2
#
interface GigabitEthernet0/0/3
#
interface GigabitEthernet0/0/4
#
interface GigabitEthernet0/0/5
#
interface GigabitEthernet0/0/6
#
interface GigabitEthernet0/0/7
#
interface GigabitEthernet0/0/8
#
interface GigabitEthernet0/0/9
#
interface GigabitEthernet0/0/10
#
interface GigabitEthernet0/0/11
#
interface GigabitEthernet0/0/12
#
interface GigabitEthernet0/0/13
#
interface GigabitEthernet0/0/14
#
interface GigabitEthernet0/0/15
#
interface GigabitEthernet0/0/16
#
interface GigabitEthernet0/0/17
#
interface GigabitEthernet0/0/18
#
interface GigabitEthernet0/0/19
#
interface GigabitEthernet0/0/20
#
interface GigabitEthernet0/0/21
#
interface GigabitEthernet0/0/22
#
interface GigabitEthernet0/0/23
#
interface GigabitEthernet0/0/24
#
interface NULL0
#
user-interface con 0
idle-timeout 0 0
user-interface vty 0 4
#
return

发表于 2014-3-27 16:25:33 | 显示全部楼层

回帖奖励 +1 个鸿鹄币

sw1的int VLANif2 下配置iP help-address 命令吧,我记得思科配置里这种情况下有这个配置,华为的应该也有吧,你可以试一下
沙发 2014-3-27 16:25:33 回复 收起回复
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发表于 2014-3-31 15:32:21 | 显示全部楼层
2网段去掉了就可以自动获取了
板凳 2014-3-31 15:32:21 回复 收起回复
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