Cisco Switches - Revision history

William: Untagged trunk ports

2023-09-06T16:29:44Z

Untagged trunk ports

← Older revision		Revision as of 16:29, 6 September 2023
Line 137:		Line 137:
	switchport mode trunk		switchport mode trunk
	!</nowiki>		!</nowiki>
			=== Port with untagged and tagged traffic ===
			This is when a port is used as an access port and also has vlans available. Typically necessary for setting up something with a single interface.
			<nowiki>
			!
			interface GigabitEthernet1/0/2
			description white wire
			switchport trunk encapsulation dot1q
			switchport trunk native vlan 40
			switchport trunk allowed vlan 30,40,50
			switchport mode trunk
			!
			</nowiki>
			In the above config it is necessary to have the "native" vlan (the equivalent of an access vlan, "switchport access vlan 40") also an allowed vlan for the trunk port.

William: trunk setup

2023-05-05T15:51:38Z

trunk setup

@@ Line 100: / Line 100: @@
 switch#conf t
 Enter configuration commands, one per line.  End with CNTL/Z.
-switch(config)#vlan 2
+switch(config)#vlan 30
-switch(config-vlan)#name dmz
+switch(config-vlan)#name servers
 switch(config-vlan)#exit
 switch(config)#exit
 switch#</nowiki>

William: Added subsection on setting up IP

2023-05-04T20:58:50Z

Added subsection on setting up IP

@@ Line 51: / Line 51: @@
 </nowiki>
 == Create VLANs ==
 Looking at the vlan setup doesn't require enable but changing it does.

William: Protected "Cisco Switches" ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite))

2023-04-28T12:34:58Z

Protected "Cisco Switches" ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite))

← Older revision

Revision as of 12:34, 28 April 2023

William: Proper content added

2023-04-27T21:12:40Z

Proper content added

← Older revision		Revision as of 21:12, 27 April 2023
Line 1:		Line 1:
	Generally it is better to use Cisco switches as the interface is familier, works better than the web-driven rivals, they are more reliable and familiarity is worth money, unlike any other switch or router (with the exception of Juniper).		Generally it is better to use Cisco switches as the interface is familier, works better than the web-driven rivals, they are more reliable and familiarity is worth money, unlike any other switch or router (with the exception of Juniper).

			=== Goals ===
			Broadly, create the VLAN, add and IP address to VLANs where needed, and move ports into the vlan.
			== Fix idle timeout ==
			Looking at <i>sh line vty 0</i> around other details I can see the idle timeout is only ten minutes. I like to change it to thirty minutes to give me more thinking time and to make the notes on this page without it logging me out.
			<nowiki>switch>sh line vty 0
			Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int
			* 1 VTY - - - - - 8 0 0/0 -

			Line 1, Location: "", Type: "xterm-256color"
			Length: 24 lines, Width: 80 columns
			Baud rate (TX/RX) is 9600/9600
			Status: PSI Enabled, Ready, Active, No Exit Banner, Ctrl-c Enabled
			Automore On, Notify Process
			Capabilities: none
			Modem state: Ready
			Special Chars: Escape Hold Stop Start Disconnect Activation
			^^x none - - none
			Timeouts: Idle EXEC Idle Session Modem Answer Session Dispatch
			00:10:00 never none not set</nowiki>
			This is how I change it to thirty minutes
			<nowiki>
			switch>en
			Password:
			switch#conf t
			Enter configuration commands, one per line. End with CNTL/Z.
			switch(config)#line vty 0 15
			switch(config-line)#exec-timeout 30 0
			switch(config-line)#exit
			switch(config)#exit
			switch#disa
			switch></nowiki>
			Now the timeout is thirty minutes.
			<nowiki>
			switch>sh line vty 0
			Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int
			* 1 VTY - - - - - 8 0 0/0 -

			Line 1, Location: "", Type: "xterm-256color"
			Length: 24 lines, Width: 80 columns
			Baud rate (TX/RX) is 9600/9600
			Status: PSI Enabled, Ready, Active, No Exit Banner, Ctrl-c Enabled
			Automore On, Notify Process
			Capabilities: none
			Modem state: Ready
			Special Chars: Escape Hold Stop Start Disconnect Activation
			^^x none - - none
			Timeouts: Idle EXEC Idle Session Modem Answer Session Dispatch
			00:30:00 never none not set
			</nowiki>

			== Create VLANs ==
			Looking at the vlan setup doesn't require enable but changing it does.
			<nowiki>
			switch>sh vlan

			VLAN Name Status Ports
			---- -------------------------------- --------- -------------------------------
			1 default active Gi1/0/1, Gi1/0/2, Gi1/0/3
			Gi1/0/4, Gi1/0/5, Gi1/0/6
			Gi1/0/7, Gi1/0/8, Gi1/0/9
			Gi1/0/10, Gi1/0/11, Gi1/0/12
			Gi1/0/13, Gi1/0/14, Gi1/0/15
			Gi1/0/16, Gi1/0/17, Gi1/0/18
			Gi1/0/19, Gi1/0/20, Gi1/0/21
			Gi1/0/22, Gi1/0/23, Gi1/0/24
			Gi1/0/25, Gi1/0/26, Gi1/0/27
			Gi1/0/28, Gi1/0/29, Gi1/0/30
			Gi1/0/31, Gi1/0/32, Gi1/0/33
			Gi1/0/34, Gi1/0/35, Gi1/0/36
			Gi1/0/37, Gi1/0/38, Gi1/0/39
			Gi1/0/40, Gi1/0/41, Gi1/0/42
			Gi1/0/43, Gi1/0/44, Gi1/0/45
			Gi1/0/46, Gi1/0/47, Gi1/0/48
			Gi1/0/49, Gi1/0/50, Gi1/0/51
			Gi1/0/52
			1002 fddi-default act/unsup
			1003 trcrf-default act/unsup
			1004 fddinet-default act/unsup
			1005 trbrf-default act/unsup
			</nowiki>

			At this point everything is in VLAN1, which is the default configuration. However our goal here is to put ports into a relevant VLAN and turn off VLAN1. First we need to create some VLANs. Go into enable mode and conf t.
			<nowiki>
			switch>en
			Password:
			switch#conf t
			Enter configuration commands, one per line. End with CNTL/Z.
			switch(config)#vlan 2
			switch(config-vlan)#name dmz
			switch(config-vlan)#exit
			switch(config)#exit
			switch#</nowiki>

William: First save

2023-04-19T21:20:45Z

First save

New page

Generally it is better to use Cisco switches as the interface is familier, works better than the web-driven rivals, they are more reliable and familiarity is worth money, unlike any other switch or router (with the exception of Juniper).