swboot

On-demand switch configuration system.

License is GPLv3 if nothing else is stated.

Dependencies

sudo apt-get install redis-server python3-redis libsnmp-dev python3-tempita python3-ipcalc python3-yaml isc-dhcp-server snmp python3-pip build-essential python3-dev python3-six python3-wheel
pip3 install python3-netsnmp ipcalc passlib

Config

sudo /sbin/ifconfig eth1 inet 192.168.8.10 netmask 255.255.255.0

Install

cp config-sample.py config.py

dhcpd.conf

include "/scripts/swboot/dhcpd.conf";

Start swtftpd

sudo python3 swtftpd.py

Test generation of configuration

python3 generate.py D20-A WS-C2950T-24

Boot procedure

The Cisco switches will try to get DHCP and boot via TFTP if no config exists (wr erase). If you want to have a config stored on the switch it must include "boot host dhcp".

Default switch conf

For event configs, see SVN allevents/access/default-paste/

In general, something like this will work:

en
conf t
boot host dhcp
interface vlan 1
no ip address
no shut
!
snmp-server community public RO
snmp-server community private RW
snmp-server system-shutdown
!
wr
!

Dist switch

en
conf t
ip routing
!
ip dhcp snooping vlan 1
! Perhaps needed:
! ip dhcp snooping information option allow-untrusted
ip dhcp snooping
!         
!         
interface GigabitEthernet1/0/5
 description DHCP-server
 switchport access vlan 123
 switchport mode access
 spanning-tree portfast
 ip dhcp snooping trust
!         
interface GigabitEthernet1/0/20
 spanning-tree portfast
 ip dhcp snooping vlan 1 information option format-type circuit-id string B01-B
!
interface Vlan1
 ip address 10.80.10.1 255.255.255.0
 ip helper-address 10.255.253.2
!
interface Vlan123
 ip address 10.255.253.5 255.255.255.0
!