Eudemon200E 下接用户不能上网问题

发布时间:  2014-08-10 浏览次数:  146 下载次数:  0
问题描述
用户vlan4无法上网,其他vlan正常,Eudemon200E作为网关设备,下接多个vlan

Eudemon200E配置:

************************************
#
interface Vlanif1
alias LAN
ip address 192.168.0.2 255.255.255.0
#
interface Vlanif2
alias Vlanif2
ip address 192.168.2.1 255.255.255.0
dhcp select interface
dhcp server forbidden-ip 192.168.2.190
dhcp server gateway-list 192.168.2.1
dhcp server dns-list 196.43.50.190
#
interface Vlanif3
alias Vlanif3
ip address 192.168.3.1 255.255.255.0
dhcp select interface
dhcp server gateway-list 192.168.3.1
dhcp server dns-list 196.43.50.190     
#
interface Vlanif4
alias Vlanif4
ip address 192.168.4.1 255.255.255.0
#
interface Vlanif5
alias Vlanif5
ip address 192.168.5.1 255.255.255.0
dhcp select interface
dhcp server gateway-list 192.168.5.1
dhcp server dns-list 196.43.50.190
#
interface Cellular5/0/0
link-protocol ppp
#
告警信息
处理过程
仿照其他vlanif接口,加入dhcp相关配置,问题解决。

interface Vlanif4
alias Vlanif4
ip address 192.168.4.1 255.255.255.0
dhcp select interface
dhcp server gateway-list 192.168.4.1
dhcp server dns-list 196.43.50.190
根因
查看防火墙配置,发现对比其他vlanif网关接口,vlanif4下面并无dhcp相关配置,只配置了ip地址和别名参数。导致vlan 4下接用户无法自动获得IP地址和网关,dns等信息。


建议与总结
在检查配置排查错误时,可以采用对比同类型配置的方法,有时候能从已有的正确配置中找到线索加快调测进度。

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