I can't find any infromation about which OS is used on the SG300-Switches by cisco, maybe you can help me with that.
Which OS is Used with Cisco SG300-XXX – Switch Operating System Guide
ciscoswitch
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According to the Cisco 300 Series Managed Switches Data Sheet, the SG300 switches can do IPv4 routing:
You will probably need to configure this on your switch.
You will definitely need a firewall between your switch and the WAN in order to protect your network.
It doesn't work because of a limitation of the SG300.
The SG300 doesn't have routed ports.
I set up a clean SG300 config but it was not possible to reach the ISP Gateway:
Config of SG300:
config-file-header
switche5bce7
v1.4.5.02 / R800_NIK_1_4_194_194
CLI v1.0
set system mode router
file SSD indicator encrypted
@
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
!
vlan database
vlan 100,200
exit
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
bonjour interface range vlan 1
hostname switche5bce7
no passwords complexity enable
username cisco password encrypted d033e22ae348aeb5660fc2140aec35850c4da997 privilege 15
!
interface vlan 100
name "VLAN100"
ip address 20.20.20.33 255.255.255.224
!
interface vlan 200
name "VLAN200"
ip address 20.20.20.129 255.255.255.224
!
interface gigabitethernet1
ip address 20.20.20.2 255.255.255.252
!
interface gigabitethernet10
switchport mode access
switchport access vlan 100
!
interface gigabitethernet20
switchport mode access
switchport access vlan 200
!
exit
ip default-gateway 20.20.20.1
Afterwards I set up a Catalyst 3750 Switch with the same VLANs and config and I was able to issue no switchport on Interface Gigabit1/0/1.
Now I can reach the ISP Gateway how it should be.
Config of 3750:
Current configuration : 3535 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Switch
!
boot-start-marker
boot-end-marker
!
!
!
!
no aaa new-model
switch 1 provision ws-c3750x-24p
system mtu routing 1500
ip routing
!
!
!
!
crypto pki trustpoint TP-self-signed-2617031040
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-2617031040
revocation-check none
rsakeypair TP-self-signed-2617031040
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
!
!
!
vlan internal allocation policy ascending
!
!
!
interface FastEthernet0
no ip address
no ip route-cache cef
no ip route-cache
no ip mroute-cache
!
interface GigabitEthernet1/0/1
no switchport
ip address 20.20.20.2 255.255.255.252
!
interface GigabitEthernet1/0/2
!
interface GigabitEthernet1/0/3
!
interface GigabitEthernet1/0/4
!
interface GigabitEthernet1/0/5
!
interface GigabitEthernet1/0/6
!
interface GigabitEthernet1/0/7
!
interface GigabitEthernet1/0/8
!
interface GigabitEthernet1/0/9
!
interface GigabitEthernet1/0/10
switchport access vlan 100
switchport mode access
!
interface GigabitEthernet1/0/11
!
interface GigabitEthernet1/0/12
!
interface GigabitEthernet1/0/13
!
interface GigabitEthernet1/0/14
!
interface GigabitEthernet1/0/15
!
interface GigabitEthernet1/0/16
!
interface GigabitEthernet1/0/17
!
interface GigabitEthernet1/0/18
!
interface GigabitEthernet1/0/19
!
interface GigabitEthernet1/0/20
!
interface GigabitEthernet1/0/21
!
interface GigabitEthernet1/0/22
!
interface GigabitEthernet1/0/23
!
interface GigabitEthernet1/0/24
!
interface GigabitEthernet1/1/1
!
interface GigabitEthernet1/1/2
!
interface GigabitEthernet1/1/3
!
interface GigabitEthernet1/1/4
!
interface TenGigabitEthernet1/1/1
!
interface TenGigabitEthernet1/1/2
!
interface Vlan1
no ip address
!
interface Vlan100
ip address 20.20.20.33 255.255.255.224
!
ip classless
ip route 0.0.0.0 0.0.0.0 20.20.20.1
ip http server
ip http secure-server
!
ip sla enable reaction-alerts
!
!
line con 0
line vty 0 4
login
line vty 5 15
login
!
end
Best Answer
Cisco SG series doesn't use a full Cisco Internetwork Operating System Software IOS but a similiar one. Being quite similiar they differ on a lot of stuff (VLAN management for one) SG series is aimed to small business, if you need a switch for cert study this is not a valid solution.