Вот собственно конфиг рутера:

!
version 12.3
no service pad
service telnet-zeroidle
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
no service dhcp
!
!
boot-start-marker
boot system flash flash:c2801-ipvoice-mz.123-14.T5.bin
boot system flash flash:c2801-ipbase-mz.124-1a.bin
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
network-clock-participate wic 0
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
ip subnet-zero
ip cef
!
!
no ip dhcp use vrf connected
!
!
no ip bootp server
no ftp-server write-enable
isdn switch-type primary-net5
!
voice-card 0
dsp services dspfarm
!
!
username cisco privilege 15 password 7 110A1016141D
!
!
controller E1 0/0/0
!
!
!
interface FastEthernet0/0
ip address 10.250.24.2 255.255.255.248
duplex auto
speed auto
!
interface FastEthernet0/1
ip address 10.250.24.242 255.255.255.248
duplex auto
speed auto
!
interface FastEthernet0/1/0
!
interface FastEthernet0/1/1
!
interface FastEthernet0/1/2
!
interface FastEthernet0/1/3
!
interface Vlan1
no ip address
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.250.24.241
!
no ip http server
!
disable-eadi
!
!
!
control-plane
!
!
!
line con 0
line aux 0
exec-timeout 5 0
login local
transport input all
transport output all
stopbits 1
speed 38400
line vty 0 4
login local
!
end