Cannot get address from ISP

[gaban]

I have a PIX (v6.2)firewall and that has been working fine. A few day ago it is not getting an external address. I connect via DSL using pppoe. I know the dsl is up because if i bypass the PIX I can connect. I can connect briefly if I change the auth to chap then change it back pap. I get an IP address but in a few seconds it's gone. I then upgraded to a new ver 6.3.4 and now I don't even get a link light steady on e0. I do show int e0 and I get a line protocol dowm.

Any help is appreciated.

thanks,

gilbert

[Patrick Iseli]

Sounds like duplex mode problems or cable problem.

Try to set to duplex mode on the ADSL Modem if possible. Set to auto Modem/Router - auto on PIX, or set the duplex mode to 10 half - 10half or 10 full- 10 full etc.

What PIX is it a 501 or 506 ?

example of PIX 501:

interface ethernet0 auto

interface ethernet1 100full

pix(config)# interface

Usage: interface [ [shutdown]]

[no] interface [logical|physical] [shutdown]

interface change-vlan

show interface

command reference:

http://www.cisco.com/en/US/products/sw/secursw/ps2120/products_command_reference_chapter09186a00801727a9.html#wp1075586

sincerely

Patrick

[gaban]

Thanks for the response patrick.

I have int eo on auto right now. I will try to set it maybe 10baset and see. Unfortunately I do not have access to the DSL modem. Thanks for the link.