Knowledgebase

Configuration Description

!Additional license required for Dial-up!

This example configuration can be used as a backup solution, in case a specific host in a specific network is not available anymore. In this case an ISDN Dial-up connection will be set up. The default route will be removed and the default route with the next higher metric will be used. This is done by the feature "link supervision" in addition with "dial-up". As soon as the specified host is available again, the Dial-up connection will be terminated. The traffic will be routed over the regular IP interface as it was initially. The default route with the lower metric is used again.

Relpace:

Z IP-Address WAN-port SmartNode
Y IP-Address Specific host (which needs to be checked)
X IP-Address default Gateway for Network Z
W Username for Dial-up connection
V Password for Dial-up connetion
U Local e164 Number
T Remote e164 Number to dial (ISP)

Command Sequence to copy, edit and paste

#----------------------------------------------------------------#
#                                                                #
# SN XXXX                                                        #
# R5.X H323 SIP BRI                                              #
#                                                                #
# Example configuration file                                     #
#                                                                #
#----------------------------------------------------------------#

cli version 3.20
clock local offset +01:00
dns-relay
webserver port 80 language en
sntp-client server primary 129.132.2.21 port 123 version 4
system hostname Dialup__Unit

system

  ic voice 0
    low-bitrate-codec g729

system
  clock-source 1 bri 0 0

profile napt NAPT_WAN

profile ppp default

profile tone-set default

profile voip default
  codec 1 g711alaw64k rx-length 20 tx-length 20
  codec 2 g711ulaw64k rx-length 20 tx-length 20
  fax transmission 1 relay t38-udp
  modem transmission 1 bypass g711alaw64k
  modem bypass-method nse

profile pstn default

profile sip default

profile dhcp-server DHCPS_LAN
  network 192.168.1.0 255.255.255.0
  include 1 192.168.1.10 192.168.1.99
  lease 2 hours
  default-router 1 192.168.1.1
  domain-name-server 1 192.168.1.1

profile aaa default
  method 1 local
  method 2 none

context ip router

  interface WAN
    ipaddress unnumbered
    point-to-point
    use profile napt NAPT_WAN
    tcp adjust-mss rx mtu
    tcp adjust-mss tx mtu
    dial-up monitor interface IF_WAN dial delay 5 drop delay 10 queue-limit 4

  interface LAN
    ipaddress 192.168.1.1 255.255.255.0
    tcp adjust-mss rx mtu
    tcp adjust-mss tx mtu

  interface IF_WAN
    ipaddress <ZZZZZZZ> <mask>
    use profile napt NAPT_WAN
    check-connectivity ping <YYYYYYY> tolerance-down 3 tolerance-up 1 timeout 3 interval 3

context ip router
  dhcp-server use profile DHCPS_LAN
  route 0.0.0.0 0.0.0.0 <XXXXXXX> 0
  route 0.0.0.0 0.0.0.0 WAN 1

subscriber ppp Dialup
  dial out
  no multilink
  authentication chap
  authentication pap
  identification outbound <WWWWWWW> password <VVVVVVV>
  timeout idle 100
  bind interface WAN router

context cs switch

  interface isdn IF_BRI_00
    route call dest-interface IF_SIP2

  interface dialer IF_DIALUP

    outbound 1 DialupNet
      local-e164 <UUUUUUU>
      remote-e164 <TTTTTTT>
      route call dest-interface IF_BRI_00
      use profile ppp default
      encapsulation ppp
      bind subscriber Dialup

context cs switch
  no shutdown

port ethernet 0 0
  medium auto
  encapsulation ip
  bind interface IF_WAN router
  no shutdown

port ethernet 0 1
  medium auto
  encapsulation ip
  bind interface LAN router
  no shutdown

port bri 0 0
  clock auto
  encapsulation q921

  q921
    uni-side user
    encapsulation q931

    q931
      protocol dss1
      uni-side user
      bchan-number-order ascending
      encapsulation cc-isdn
      bind interface IF_BRI_00 switch

port bri 0 0
  no shutdown