basics | defaults | fw | init | lacp | passwords | setup | ssh
see defaults
what the wizard does:
w/o the wizard
conf t
define a hostname and bring the interfaces up on vlan1
hostname SWITCH-NAME/MODEL
!ip domain-name localdomain
interface vlan1
no shutdown
ip address 10.7.7.203 255.255.255.0
ip route-cache
the management ip can also be set on an alternate VLAN (vlan1 by default) – but only one Switch Virtual Interface at a time (at least for those old layer 2 switches like the 2950)
and check
show vlan name mgmt vlan database show
interface fa0/0
switchport access vlan 2
switchport mode access
spanning-tree portfast
end
and check
show vlan id 2
defining an access vlan right in front of the trunk helps to fallback there in case of troubles
interface fa0/0
switchport access vlan XXX
switchport trunk encapsulation dot1q
switchport mode trunk
and check
show interface fa0/0
show interface fa0/0 trunk
eventually disable snmp
!no snmp-server
disable the freaking WUI
– in case you really wanna try it out, reach port 80 and enter password w/o username
no ip http server no ip http secure-server
and check
end show running-config
show running-config
write memory
!copy running-config startup-config
and eventually make sure everything goes smooth after a restart
reload
vlan internal allocation policy ascending https://community.cisco.com/t5/routing/vlan-internal-allocation-policy-ascending/td-p/696546
Internal Vlan usage for routed port https://community.cisco.com/t5/routing/internal-vlan-usage-for-routed-port/td-p/1724721
Wireshark capture VLAN IDs https://community.cisco.com/t5/network-management/wireshark-capture-vlan-ids/td-p/3178402
How To Configure VLANs On the Catalyst Switches https://community.cisco.com/t5/networking-documents/how-to-configure-vlans-on-the-catalyst-switches/ta-p/3131780
Delete a configuration of an interface https://community.cisco.com/t5/switching/delete-a-configuration-of-an-interface/td-p/1495108 https://community.cisco.com/t5/switching/is-there-a-way-to-quickly-remove-config-from-a-range-of-ports/td-p/2024486 https://community.cisco.com/t5/switching/clear-config-interface/td-p/1478260 https://community.cisco.com/t5/switching/clear-the-config-off-an-interface/td-p/1042596
VLAN analysis With Wireshark https://www.youtube.com/watch?v=CSUuEnYEwMQ
VLAN range 1006-1024 https://learningnetwork.cisco.com/thread/118672
Creating a VLAN for Cisco Networking https://www.dummies.com/programming/networking/creating-a-vlan-for-cisco-networking/
https://www.dummies.com/programming/networking/cisco/cisco-networking-configuration-saving/
https://serverfault.com/questions/559082/how-do-you-save-the-configuration-of-a-cisco-switch