Specifications

Configuring Asynchronous Serial Traffic over UDP
Configuration Examples for UDPTN
DC-47
Cisco IOS Dial Technologies Configuration Guide
Step 3 While the udptn command is enabled, enter the show ip socket command to verify that the socket being
used for UDPTN opened correctly.
Router# show ip socket
Proto Remote Port Local Port In Out Stat TTY OutputIF
17 --listen-- 172.21.14.90 67 0 0 89 0
17 0.0.0.0 520 172.21.14.90 520 0 0 1 0
17 1.1.1.2 57 1.1.1.1 57 0 0 48 0
17 224.1.1.1 57 1.2.2.2 57 0 0 48 0 Loopback0
Configuration Examples for UDPTN
This section provides the following UDPTN configuration examples:
• Multicast UDPTN Example
• Broadcast UDPTN Example
• Point-to-Point UDPTN Example
Multicast UDPTN Example
These configurations are for multicast UDPTN. The router that is multicasting does not require a
multicast configuration—it simply sends to the multicast IP address.
Router That Is Multicasting
ip multicast-routing
interface ethernet 0
ip address 10.1.1.1 255.255.255.0
ip pim dense-mode
!
line 5
no session-timeout
transport output udptn
dispatch-timeout 10000
dispatch-character 13
modem in
autocommand udptn 172.1.1.1 /transmit
Receiving Routers
ip multicast-routing
interface ethernet 0
ip address 10.99.98.97 255.255.255.192
ip pim dense-mode
!
line 0 16
transport output udptn telnet lat rlogin
autocommand udptn 172.1.1.1 /receive