(RADIATOR) Cisco ADSL

[Hugh Irvine]

Hello Quintin -

Here is a PreClientHook (included in Radiator 2.18.4) that will do some of 
what you require.

# cisco-nas-port.pl
# PreClientHook to extract NAS-Port information.
#
# Cisco encodes information in the NAS-Port attribute as follows:
#
# nl-rt-sh-vpn-aer11(config)#radius-server attribute nas-port format ?
#? a ?Format is type, channel, port
#? b ?Either interface(16) or isdn(16), async(16)
#? c ?Data format(bits): shelf(2), slot(4), port(5), channel(5)
#? d ?Data format(bits): slot(4), module(1), port(3), vpi(8), vci(16)
#
# This hook is written for Cisco format "d" above (ATM vpi/vci).
#
# The encoded information is extracted and the individual data elements
# are added to the request packet as pseudo-attributes.
#
# Hugh Irvine, Open System Consultants, 20010622
 
sub
{
        my $p = ${$_[0]};
 
        my $nasport = $p->get_attr('NAS-Port');
 
        if (defined($nasport))
        {
                my ($slot, $module, $port, $vpi, $vci);
                $vci = $nasport & 0xffff;
                $nasport = $nasport >> 16;
                $vpi = $nasport & 0xff;
                $nasport = $nasport >> 8;
                $port = $nasport & 0x7;
                $nasport = $nasport >> 3;
                $module = $nasport & 0x1;
                $nasport = $nasport >> 1;
                $slot = $nasport & 0xf;
                $p->add_attr('Cisco-NAS-Port-Vci', $vci)
                        if defined $vci;
                $p->add_attr('Cisco-NAS-Port-Vpi', $vpi)
                        if defined $vpi;
                $p->add_attr('Cisco-NAS-Port-Port', $port)
                        if defined $port;
                $p->add_attr('Cisco-NAS-Port-Module', $module)
                        if defined $module;
                $p->add_attr('Cisco-NAS-Port-Slot', $slot)
                        if defined $slot;
        }
}                         


regards

Hugh


On Thursday 13 September 2001 20:21, Quintin Lam wrote:
> Hi,
>
> Does anyone knows how to get the Virtual-Access Port in cisco IOS
> 12.1(5)dc1.  After upgrade the IOS and using format d, the accounting
> record becomes
>
> Thu Sep 13 16:53:18 2001
>         NAS-IP-Address = 192.168.200.17
>         NAS-Port = 1879713553
>         NAS-Port-Type = Virtual
>         User-Name = "tcltk"
>         Acct-Status-Type = Start
>         Acct-Authentic = RADIUS
>         Service-Type = Framed-User
>         Acct-Session-Id = "7/0/0/10.10001_000000B1"
>         Framed-Protocol = PPP
>         Acct-Delay-Time = 0
>         Timestamp = 1000371198
>
> Can the accounting data record the Client-IP address (%C instead of %N)
> too?
>
> The NAS-Port shows that it is not the Virtual Access Port which was using
> IOS 12.1(3.15)T.
>
> The Acct-Session-Id is important for us and it didn't present in the old
> IOS version, that's why we need this new IOS version. Moreover, the
> NAS-Port is also important for us but now is not meaningful.
>
> Anyone who knows how to convert the NAS-Port to the "real" virtual access
> port.
>
> Thanks a lot!
>
> Quintin
>
> ===
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