Introduction

LANCOM Firewall / Router / Switch quickref

Defaults

• LCOS-FX (Unified Firewall)

 * IP: 192.168.1.254:3438 (UF-260: 192.168.2.254:3438 on LAN2/eth2)
 * User/pass: admin / admin
 * Serial: 9600 8N1, no flow

• LCOS router

 * IP: 172.23.56.254 (if no DHCP), or DHCP hostname LANCOM-xxxxxx
 * Password: set at first boot (no fixed default)
 * Serial: 115200 8N1, RTS/CTS

• LCOS-SX switch

 * User: admin / (empty password)
 * Serial: 115200 8N1, no flow

VLANs (LCOS-SX switch)

GUI: menu > VLAN > add CLI:

vlan database
vlan 10
exit
int g1/1
 switchport mode access
 switchport access vlan 10
exit
int g1/2
 switchport mode trunk
 switchport trunk native vlan 10
 switchport trunk allowed vlan add 10,20
exit
write memory

Show: show vlan brief Delete: vlan database ; no vlan 10

IP Interfaces

• LCOS-FX GUI: Network > Interfaces > Ethernet > add IP
• LCOS router CLI:

cd /Setup/TCP-IP/Networks
add "LAN-10" INTRANET 10.10.10.1 255.255.255.0 10

L2 / L3 tables

• MAC (switch): show mac address-table
• ARP (router): cd /Status/TCP-IP/ARP-Table ; ls
• ARP (firewall GUI): Diagnostics > ARP/Neighbors

Firewall Rules

• LCOS-FX GUI: Firewall > Rules > add
• LCOS router CLI:

cd /Setup/IP-router/Firewall
set Operating yes
cd Rules
add "Allow-DNS" UDP INTRANET ANYHOST ACCEPT {service} DNS
del "Allow-DNS"

Basics (router CLI)

cd <path>
ls
add / set / del
writeconfig