John Rickman RISC OS Notes

Routers Hubs Switches
further info on using telnet to setup router is in section:
  IP - TCP/IP - FTP and Telnet  and mac addresses ..../cookunits/1200

# 29 Oct 2012, Theo Markettos +  Richard Porter
 > Hub = OSI layer 1 - physical layer, everything's a wire, doesn't
 > understand
 > what packets are:
 > http://en.wikipedia.org/wiki/Ethernet_hub

 > Switch = OSI layer 2 - data link layer, understands ethernet frames
 > but not IP
 > http://en.wikipedia.org/wiki/Network_switch

  The consequence of which is that a hub will operate at the speed of
  the slowest device connected to it, whereas a switch will run each
  link at the highest speed that it and the switch will support. This is
  significant if you have a mix of divices with different capabilities.

  > Router = OSI layer 3 - network layer, understand IP packets
  > http://en.wikipedia.org/wiki/Router_(computing)

  Bridge - connects two segments of a network together to form a single
  network (layer 2)
  http://en.wikipedia.org/wiki/Bridging_(networking)

  Whereas a router connects two different networks, typically your LAN
  and the public internet or WAN.

# router reset
 If a reset is necessary, unplug from adsl before doing it.
 Otherwise, you will lose your current sync speeed


# Vigor2600G Draytek  router
  If you are using the DHCP server facility on the router, you may
   need to fix an allocation so that the same client (PC) always gets
   the same IP address. You can do this from the router's Telnet
   interface with the following syntax :
        srv dhcp fixip add #  BT Voyager 210 router   EchoLife HG520b
  (bought by Chris for Sally before we got her a netbook
  and before we dicovered she had cable telephone!
  It is locked to BT and cannot be unlocked AFAIK
  So I decided to try to use it as a wireless access point

* 09.01.11
  default setting - admin admin
  192.168.1.1      mac address 00-21-63-53-56-06

  turn off DHCP                             done  basic>dhcp
  turn on Wireless                          done  basic>Wireless Lan
  change IP address to - eg 192.168.1.101   done  basic>LAN setting
  change SSID to - default                  done  basic>Wireless setting
  change channel to 1                       orig  basic>Wireless setting
  turn on bridge mode                       done  basic>WAN setting

!!!!!!!It appears to be working mobile can swap between 1 and 6!!!!!!!!!
however, it will only logon to channel 6 when i amam in the study

* 05.09.11

  set WEP 64Bits password                    basic>Authentication type