Example for Configuring the mDNS Gateway
Networking Requirements
As shown in Figure 1, mobile terminals of an enterprise connect to the Internet through the WLAN. Layer 2 forwarding is performed between the Switch and AP_1 and AP_2. Departments 1 and 2 belong to VLAN 10 and VLAN 20 respectively, and each department has a Bonjour-compliant printer. The enterprise requires that the Apple terminals discover services provided by all printers in the enterprise using Bonjour.
Procedure
- Connect iPhone, Printer_1, and Printer_2 to the Internet through the WLAN.
If mobile terminals with Apple iOS V6.0 or later dynamically obtain IP addresses using DHCP, run the dns-list command in the global address pool view or the dhcp server dns-list command in the interface address pool view to configure the DNS server IP address.
- Enable the mDNS gateway on the Switch.
<HUAWEI> system-view [HUAWEI] sysname Switch [Switch] mdns gateway enable
- Configure an mDNS group on the Switch.
[Switch] mdns group group1 [Switch-mdns-group-group1] user-vlan 10 [Switch-mdns-group-group1] service-vlan 20 [Switch-mdns-group-group1] quit
- On the Switch, configure the service types that can be recorded by the mDNS gateway.
[Switch] mdns permit service-type _raop._tcp.local id 0 [Switch] mdns permit service-type _airplay._tcp.local id 1 [Switch] mdns permit service-type _printer._tcp.local id 2 [Switch] mdns permit service-type _device-info._tcp.local id 3 [Switch] mdns permit service-type _rfb._tcp.local id 4 [Switch] mdns permit service-type _sftp-ssh._tcp.local id 5 [Switch] mdns permit service-type _ssh._tcp.local id 6 [Switch] mdns permit service-type _smb._tcp.local id 7 [Switch] mdns permit service-type _afpovertcp._tcp.local id 8 [Switch] mdns permit service-type _universal._sub._ipp._tcp.local id 9
- Configure the Switch to periodically discover services.
[Switch] vlan 10 [Switch-vlan10] mdns probe interval 100 [Switch-vlan10] quit [Switch] interface vlanif 10 [Switch-Vlanif10] ip address 192.168.2.1 24 [Switch-Vlanif10] quit [Switch] vlan 20 [Switch-vlan20] mdns probe interval 100 [Switch-vlan20] quit [Switch] interface vlanif 20 [Switch-Vlanif20] ip address 192.168.3.1 24 [Switch-Vlanif20] quit
- Verify the configuration.
# Run the display mdns gateway command on the Switch to check the mDNS gateway configuration.
[Switch] display mdns gateway MDNS Information: -------------------------------------------------------------------------------- MDNS Gateway Status : Enable MDNS Source IP : - -------------------------------------------------------------------------------- Gateway Probe Vlan : vlan10 vlan20 --------------------------------------------------------------------------------
# Run the display mdns service all command on the Switch to check service information recorded on the mDNS gateway.
[Switch] display mdns service all MDNS Service Info: Service name : Officejet Pro 8100 [C12FFA] (6)._printer._tcp.local TXT Info: Data Length : 297 Service name : _printer._tcp.local PTR Info: Domain Name : Officejet Pro 8100 [C12FFA] (6)._printer._tcp.local Service name : Officejet Pro 8100 [C12FFA] (7)._ipp._tcp.local TXT Info: Data Length : 408 Service name : _ipp._tcp.local PTR Info: Domain Name : Officejet Pro 8100 [C12FFA] (7)._ipp._tcp.local Total: 4# After the configuration is complete, Bonjour-compliant terminals can discover printers in VLAN 10 and VLAN 20.
Configuration Files
Configuration file of the Switch
# sysname Switch # mdns gateway enable mdns permit service-type _raop._tcp.local id 0 mdns permit service-type _airplay._tcp.local id 1 mdns permit service-type _printer._tcp.local id 2 mdns permit service-type _device-info._tcp.local id 3 mdns permit service-type _rfb._tcp.local id 4 mdns permit service-type _sftp-ssh._tcp.local id 5 mdns permit service-type _ssh._tcp.local id 6 mdns permit service-type _smb._tcp.local id 7 mdns permit service-type _afpovertcp._tcp.local id 8 mdns permit service-type _universal._sub._ipp._tcp.local id 9 # mdns group group1 user-vlan 10 service-vlan 20 # vlan 10 mdns probe interval 100 # vlan 20 mdns probe interval 100 # interface Vlanif 10 ip address 192.168.2.1 255.255.255.0 # interface Vlanif20 ip address 192.168.3.1 255.255.255.0 # return