There is a router/modem connecting to the ISP using PPoA. This router was in place and works...the customer just wanted some packet filtering as well ( which the router in place does not provide ). So I am using a Cisco SOHO 71. E1 is the outside interface which connects to the inside interface of the existing router. E1 has a static ip of 172.16.0.2 ( there is no "ip address dhcp" it is "ip address 172.16.0.2 255.255.255.0"
E0 has "ip address 192.168.0.9 255.255.255.0" There is a static route on the existing ( non Cisco ) router pointing all 192.168.0.0/24 destined traffic back to 172.16.0.2 ( E1 of Cisco ). There is also a default route on the cisco pointing to 172.16.0.1 ( the inside interface of the non-cisco router ) The non-cisco router does NAT INTERNET---------WANinterface(non-Cisco Router)172.16.0.1(inside) | | Win2000Server(DHCP)--|------192.168.0.9(E0)(Cisco SOHO71)172.16.0.2(E1) | | LAN Every few days ( there doesn't seem to be an exact regularity yet), interface E0's ip address will change. So far it has always changed to 192.168.0.16. If I view the DHCP Manager in Windows 2000 Server, it indicates that IP address associated with the router. The config of e0 ( when working normal) looks like this: Interface Ethernet 0 ip address 192.168.0.9 255.255.255.0 Any ideas??? I think I will configure syslog debugging level and turn on dhcp debugging. With that I should get at very least the moment that the address changes...and hopefully some dhcp debug output. I suppose I could also put a sniffer in and try to detect it. Thanks ""Erick B."" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > That is strange. What type of router and IOS version? > > Just to clarify, the interface has 'ip address x.x.x.x > y.y.y.y' config and not 'ip address dhcp' with a > static DHCP assigned address. Being DSL, is it PPPoE > by chance? > > Does e0 connect to DSL/Internet and e1 to their > network or vice versa? > > --- Dain Deutschman wrote: > > Hi all, > > > > I have a problem with a client on a dsl connection. > > Ethernet 0 and 1 both > > have statically assigned IP addresses. I leave the > > customer site and 3 days > > later they call and have no internet. I check the > > router config and E0 has > > the wrong IP address. I check the Win2000 DHCP > > server and that address is > > listed as leased to the router. > > > > Any ideas why the router is allowing this to happen? > > > > -- > > Dain Deutschman > > CNA, MCP, CCNA > > Data Communications Manager > [EMAIL PROTECTED] > > > __________________________________________________ > Do you Yahoo!? > Faith Hill - Exclusive Performances, Videos & More > http://faith.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=55094&t=55094 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]