Cisco 2501 pppoe virtual dialing instance (1)

Vro is an important device for interconnection between the Intranet and the Internet. The following article describes in detail the configuration instance of the vro for PPPOE virtual dialing.
 

The lowest requirement for IOS is the "remote access server" feature set.
C2500-c-l.123-5b.bin
2500 Series
The MTU of the interface to be modified. Otherwise there will be some problems.

The following configuration is available.
And you can use 2501.
I have seen that some people on the internet used 26 for configuration. 25 cannot be done.
It must also have two ethenet ports. Actually no
Same as an ethernet port.
It is also useful:
However, 2505 is not acceptable.
2505 of the interfaces are hub ports. It is not an ethernet port.
I have not found a suitable ios version. That is, pppoe client and hub interface are supported.

Features of remote access server, does not support the hub interface.
Pppoe client is not supported in enterprise 12.2. Depressed for a while.

This configuration also uses devices such as 1726.
You can test it.
About using ADSL for vpn.
I remember the previous post:
25 is useless.
This feature does not support ipsec
Versions that support ipsec do not support pppoe client
26 is required:
26. Two feature ios versions are supported.

Nfshanq # sh run
Building configuration...

Current configuration: 1241 bytes
!
Version 12.3:
Service timestamps debug datetime msec
Service timestamps log datetime msec
No service password-encryption
Service tcp-small-servers
!
Hostname nfshanq
!
Boot-start-marker
Boot-end-marker
!

!

Ip subnet-zero
Ip name-server 202.96.134.20.
!
!
!
!
!