topic Hello Lars Christensen in Wireless

AirPrint using WLC:2504, AP:AIR-CAP-1702I-C-K and Printer:Brother MFC-J5910DW

anisuzzamanb — Mon, 05 Jul 2021 13:13:06 GMT

I have subject mentioned products. I am getting trouble to use Apple AirPrint.

The printer has confirm AirPrint facility, since if I connect that printer with Ruckus AP.

I configured basic configuration for mDNS at WLC. The printer shows under _ipp_tcp.local. but AirPrint did not find that printer though Printer and iPhone both connected under the same AP with same SSID. IP address assigned from a designated DHCP server which belongs to different network.

WLC Software version: 8.0.120.0

Any technical help regarding topology and configuration will be helpful.

Hi

Lars Christensen — Tue, 13 Dec 2016 12:50:52 GMT

To get Airprint to work via mDNS you need to enable query on two services, both exist by default on the WLC:

Service name Service String

AirPrint _ipp._tcp.local.

HP_Photosmart_Printer_1 _universal._sub._ipp._tcp.local.

Hello Lars Christensen

anisuzzamanb — Wed, 14 Dec 2016 03:37:16 GMT

Hello Lars Christensen

Thanks for the information. On the other hand I enabled both and found mentioned printer registered under "AirPrint _ipp._tcp.local."

Those printers registered under "HP_Photosmart_Printer_1 _universal._sub._ipp._tcp.local." is discover-able using AirPrint.

Waiting for further help and findings.

For more information Please

anisuzzamanb — Wed, 14 Dec 2016 14:18:52 GMT

For more information Please check the network summary:

(Cisco Controller) >show network summary

RF-Network Name............................. XYZ
Web Mode.................................... Enable
Secure Web Mode............................. Enable
Secure Web Mode Cipher-Option High.......... Disable
Secure Web Mode Cipher-Option SSLv2......... Disable
Secure Web Mode RC4 Cipher Preference....... Disable
Secure Web Mode SSL Protocol................ Disable
OCSP........................................ Disabled
OCSP responder URL..........................
Secure Shell (ssh).......................... Enable
Telnet...................................... Disable
Ethernet Multicast Forwarding............... Enable
Ethernet Broadcast Forwarding............... Enable
IPv4 AP Multicast/Broadcast Mode............ Multicast   Address : 239.254.0.4
IPv6 AP Multicast/Broadcast Mode............ Multicast   Address : ::
IGMP snooping............................... Enabled
IGMP timeout................................ 100 seconds
IGMP Query Interval......................... 20 seconds
MLD snooping................................ Disabled
MLD timeout................................. 60 seconds
MLD query interval.......................... 20 seconds

--More-- or (q)uit
User Idle Timeout........................... 300 seconds
ARP Idle Timeout............................ 300 seconds
Cisco AP Default Master..................... Enabled
AP Join Priority............................ Disable
Mgmt Via Wireless Interface................. Enable
Mgmt Via Dynamic Interface.................. Disable
Bridge MAC filter Config.................... Enable
Bridge Security Mode........................ EAP
Mesh Full Sector DFS........................ Enable
AP Fallback ................................ Enable
Web Auth CMCC Support ...................... Disabled
Web Auth Redirect Ports .................... 80
Web Auth Proxy Redirect ................... Disable
Web Auth Captive-Bypass   .................. Disable
Web Auth Secure Web ....................... Enable
Web Auth Secure Redirection ............... Disable
Fast SSID Change ........................... Enabled
AP Discovery - NAT IP Only ................. Enabled
IP/MAC Addr Binding Check .................. Enabled
Link Local Bridging Status ................. Disabled
CCX-lite status ............................ Disable
oeap-600 dual-rlan-ports ................... Disable
oeap-600 local-network ..................... Enable

--More-- or (q)uit
oeap-600 Split Tunneling (Printers)......... Disable
WebPortal Online Client .................... 0
WebPortal NTF_LOGOUT Client ................ 0
mDNS snooping............................... Enabled
mDNS Query Interval......................... 10 minutes
Web Color Theme............................. Default
Capwap Prefer Mode.......................... IPv4
Client ip conflict detection (DHCP) ........ Disabled

A possibility could be that

Lars Christensen — Thu, 15 Dec 2016 16:07:25 GMT

A possibility could be that the printer is advertising through the service string "_printer._tcp.local."

The printers we advertise on our WLC, a cloud printer from a printserver and a couple of printers connected wireless all use the "_ipp._tcp.local." and "_universal._sub._ipp._tcp.local." service strings. The only problem we ran into was when the printserver advertised all its 250 printers, the cloudprinter didn't show up since the IPhones wouldn't show more than 10-15 printers.

Besides that, the only thing I can think of would be to make sure the mDNS profile attached to the WLAN has the necessary service strings attached. The profile below is the one we use to snoop/advertise Airplay, Airprint and Chromecast.

Profile Name..................................... Airplay+Airprint
Profile Id....................................... 2
No of Services................................... 5
Services......................................... AirPrint
                                                  AirTunes
                                                  AppleTV
                                                  GoogleCast
                                                  HP_Photosmart_Printer_1

Dear Lars Christensen

anisuzzamanb — Sat, 17 Dec 2016 12:18:18 GMT

Dear Lars Christensen

Please look at the below information which may help you to explore more. On the other hand we have only 3 printer available for such service. Also troubled printer is adjacent with service string "_printer._tcp.local."

(Cisco Controller) >show mdns profile detailed Air-Profile

Profile Name..................................... Air-Profile
Profile Id....................................... 5
No of Services................................... 6
Services......................................... AirPrint
                                                  AirTunes
                                                  Airplay
                                                  HP_Photosmart_Printer_1
                                                  HP_Photosmart_Printer_2
                                                  Scanner

No. Interfaces Attached.......................... 5
Interfaces....................................... airprint
                                                  xyz@vip
                                                  xnx-2
                                                  localmanagement
                                                  management

No. Interface Groups Attached.................... 0
No. Wlans Attached............................... 2
Wlan Ids......................................... 6
                                                  7

Thanks and looking for co-operation.

Hi anisuzzamanb

Cisco Moderador — Fri, 06 Jan 2017 20:09:48 GMT

Hi anisuzzamanb

One of our Cisco Wireless experts recommend to have a look to the deployment guide: http://www.cisco.com/c/en/us/td/docs/wireless/technology/bonjour/7-5/Bonjour_Gateway_Phase-2_WLC_software_release_7-5.html

Bonjour is Apple’s service

Tausif Gaddi — Mon, 09 Jan 2017 17:39:15 GMT

Bonjour is Apple’s service discovery protocol which locates devices such as printers, other computers, and the services that those devices offer on a local network using multicast Domain Name System (mDNS) service records.

Bonjour Phase 2 for 7.5 release is an enhancement to Bonjour features introduced in 7.4 release. Bonjour feature includes the following:

Location Specific Services (LSS) for wireless service.
mDNS-AP (enhance VLAN visibility at WLC for non-layer 2 VLANs)
Priority MAC support
Origin based service discovery
Per-service SP count limit is removed
Bonjour browser (services that are not learnt)
Bonjour SSO
Bonjour debugging

Link is a good reference though

http://www.cisco.com/c/en/us/td/docs/wireless/technology/bonjour/7-5/Bonjour_Gateway_Phase-2_WLC_software_release_7-5.html#pgfId-57311

Dear Brother(s),

anisuzzamanb — Wed, 11 Jan 2017 14:20:11 GMT

Dear Brother(s),

My WLC software version is 8.0.120.0 and I tried with those too. Though it is I believe I might miss some critical point while configuring those which causes such scenario

For you further information I am running WLC at the DC and AP's are allocated to our different office quarters and those are connected via L3/Router. Thus those AP have different IP for AP management and the users are getting IP direct from the DC end DHCP server. So traffic are traveling via CAPWAP from client to WLC.

Waiting for further guidance.