Vianet Sample Cisco Router Configurations

Statically Routed T1 Leased Line

Information supplied by ViaNet

ViaNet WAN IP address:	209.81.51.1
Customer WAN IP address:	209.81.51.2
WAN IP netmask:	255.255.255.252
LAN IP allocation:	209.81.100.0/24
LAN IP netmask:	255.255.255.0

Router Config

! Allow use of zero'th subnet
ip subnet-zero
! Disable obsolete IP classful assumptions
ip classless

interface HSSI 0/0/0
  desc T3 to ViaNet PacBell Circuit 77HCGF924831-001.pt
  ip address 209.81.51.2 255.255.255.252
  no shutdown

interface fastether  0/1/0
  desc Local ethernet LAN
  ip address 209.81.100.1 255.255.255.0
  no ip directed-broadcast
  no shutdown

! default route
ip route 0.0.0.0 0.0.0.0 HSSI 0/0/0

CSU/DSU Config

Your CSU/DSU should be set for the following options:

Framing: c-bit

Clock Source: line

Note: Most brands of CSU/DSU's that we've used (Kentrox/Digital Link/ADTRAN) are correctly configured for full T3 (as opposed to fractional T3) use when reset to factory defaults.