configuration in DHCP or cmts to have some cpe in one network and others in another, or what is the best way to do it

The idea I have is to add this to the docsis file that the cable modems that I want to assign a different pool to the cpe will receive.

eRouter Configuration Encodings
eRouter Vendor Specific Information:010203/506C616E457370656369616C

then in the DHCP file, add these settings

class "PlanEspecial" {
match if substring(option vendor-encapsulated-options, 0, 13) = 0x506C616E457370656369616C;
}

subnet 192.168.10.0 netmask 255.255.255.0 {
pool {
allow members of "PlanEspecial";
range 192.168.10.10 192.168.10.100;
option routers 192.168.10.1;
option domain-name-servers 8.8.8.8, 8.8.4.4;
}
}

group {
next-server 170.238.239.2;

option vendor-class-identifier "PlanEspecial";

host 777_test { hardware ethernet 50:39:55:55:09:b0; }
}

Please someone help me with this and what is the recommended way to do what I want,
which is to be able to differentiate some cable modems and then route these over a different link to the internet,
a different link to the rest of the cable modems connected to the CMTS

Hi

what was proposed It could also be done with the use of vlan, if I could indicate a vlan in the docsis file and assign this file only to the cable modems that I want to route through a different link than the rest

please help me with this

any help on this

Hi

I am testing using the option vendorOptions.modelNumber to identify a specific cable modem model, for testing I use the DPC3825
My intention is to be able to assign a different pool of addresses to the CPEs that are in this class.

class "test1" {
match if option vendorOptions.modelNumber = "DPC3825";
}

class "test2" {
match if (substring(option vendorOptions.modelNumber,0,7) = "DPC3825");
}

This doesn't work for me, I tried it for the CM pool and it didn't work either

The way it worked for me was with this where I indicate the mac of the cpe
class "test3" {
match if (substring(hardware,1,6) = 50:39:55:55:09:b3);
}

But I want to make it something more general, that can indicate to a group of cable modems an IP range for the CPEs that is different from the rest.

Please help me with this, I need to deliver addresses in a different range or pool to some CPEs to be able to route to the Internet through a different link than the rest.

example of dhcp file that I am using in the laboratory

ddns-update-style none;
##nuevo
authoritative;
###
# option definitions common to all supported networks...

###Nuevos comandos
# Allow leasequery i.e. source-verify dhcp
allow leasequery;

ignore client-updates;

# Remember Agent info in leases file
stash-agent-options on;

# One lease per client
one-lease-per-client true;

log-facility local0;

option space docsis-mta;
option docsis-mta.dhcp-server-1 code 1 = ip-address;
option docsis-mta.dhcp-server-2 code 2 = ip-address;
option docsis-mta.provision-server code 3 = { integer 8, string };
option docsis-mta.as-req-as-rep-1 code 4 = { integer 32, integer 32, integer 32 };
option docsis-mta.as-req-as-rep-2 code 5 = { integer 32, integer 32, integer 32 };
option docsis-mta.krb-realm-name code 6 = string;
option docsis-mta.tgs-util code 7 = integer 8;
option docsis-mta.timer code 8 = integer 8;
option docsis-mta.ticket-ctrl-mask code 9 = integer 16;
option docsis-mta-pkt code 122 = encapsulate docsis-mta;
option docsis-mta.dhcp-server-1 150.218.219.3;
option docsis-mta.provision-server 0 "\003ert\003com\002co\000";
option docsis-mta.krb-realm-name "\005BASIC\0011\000";

########################################################
# Map option 43 values for Docsis modems
option space vendorOptions;
option vendorOptions.deviceType code 2 = string;
option vendorOptions.serialNumber code 4 = string;
option vendorOptions.hardwareVersion code 5 = string;
option vendorOptions.softwareVersion code 6 = string;
option vendorOptions.bootRomVersion code 7 = string;
option vendorOptions.oui code 8 = string;
option vendorOptions.modelNumber code 9 = string;
option vendorOptions.docsisVendor code 10 = string;
option vendorOptions-pkt code 43 = encapsulate vendorOptions;

set model = option vendorOptions.modelNumber;

log (info, model);

###############################################

# Cable Modem Class
class "CM" {
# only match if first 6 chars of option 61 are docsis
match if (substring(option vendor-class-identifier,0,6) = "docsis");
spawn with hardware;
}

# Match MTAs that Identify themselves as pktc
class "MTA" {
match if (substring(option vendor-class-identifier,0,5) = "pktc1");
spawn with hardware;
}

# Match Clients as determined by option 61
class "CPE" {
match if ((substring(option vendor-class-identifier,0,6) != "docsis") and (substring(option vendor-class-identifier,0,4) != "pktc"));
spawn with hardware;
}

class "test1" {
match if option vendorOptions.modelNumber = "DPC3825";
}

class "test2" {
match if (substring(option vendorOptions.modelNumber,0,6) = "DPC3825");
}

class "test3" {
match if (substring(hardware,1,6) = 50:39:55:55:09:b3);
}

shared-network CMTS3 {
next-server 150.218.219.3;
subnet 10.1.0.0 netmask 255.255.0.0 {
option domain-name-servers 150.218.219.3, 8.8.8.8, 4.2.2.2;
#option subnet-mask 255.255.255.0;
option routers 10.1.0.1;

pool {
range 10.1.0.2 10.1.200.254;
deny members of "MTA";
deny members of "CPE";
allow members of "CM";
#deny unknown-clients;
option time-offset -18000;
option host-name = host-decl-name;
option domain-name "codinet.net.co";
option domain-name-servers 150.218.219.3, 8.8.8.8, 4.2.2.2;
default-lease-time 604800;
max-lease-time 604800;
#min-lease-time 302400;
option log-servers 150.218.219.3;
option time-servers 150.218.219.3;
next-server 150.218.219.3;
option docsis-mta.dhcp-server-1 150.218.219.3;
}

}

subnet 10.2.0.0 netmask 255.255.0.0 {
#allow unknown-clients;
option domain-name-servers 150.218.219.3, 8.8.8.8, 4.2.2.2;
# Unknown clients
#option subnet-mask 255.255.255.0;
option routers 10.2.0.1;
next-server 150.218.219.3;
pool {
range 10.2.0.25 10.2.100.254;
allow members of "test3";
deny members of "CM";
#deny members of "CPE";
#deny known clients;
#allow unknown-clients;
option domain-name-servers 150.218.219.3, 8.8.8.8, 4.2.2.2;
max-lease-time 1209600;
min-lease-time 1209600;
default-lease-time 1209600;
next-server 150.218.219.3;
}

pool {
range 10.2.101.25 10.2.200.254;
allow members of "CPE";
deny members of "test3";
deny members of "CM";
#deny members of "CPE";
#deny known clients;
#allow unknown-clients;
option domain-name-servers 150.218.219.3, 8.8.8.8, 4.2.2.2;
max-lease-time 1209600;
min-lease-time 1209600;
default-lease-time 1209600;
next-server 150.218.219.3;
}

}

}

filename "sinservicio.cfg";

group {
next-server 150.218.219.3;
filename = "100mb_down_10mb_up.cfg";
option bootfile-name = "100mb_down_10mb_up.cfg";
host 777_test { hardware ethernet 50:39:55:55:09:b0; }
}

# Local
subnet 150.218.219.0 netmask 255.255.255.128 {

}

Hi

Please help me with this

Hi

I attach a diagram to better explain my need,

I need to classify some users in a class or something that allows some CPEs to take a network range of 10.2.0.0/16 and others the range of 10.3.0.0/16

In order to be able to route the CPEs of the 10.2.0.0/16 network through an internet providerA and the 10.3.0.0/16 network through another providerB

Please help me how can I do this