、Cover 发表于 2014-3-26 15:41:58

DHCP中继问题


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

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

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

zhenghj 发表于 2014-3-27 16:25:33

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

jsbxd 发表于 2014-3-31 15:32:21

2网段去掉了就可以自动获取了
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