I'm having a problem having mDNS to work in my environment. I searched diligently online, reddit and this forum to see if I could find a similar post or solution to no avail. If someone can help with with a solution to this issue it will be greatly appreciated.
This is a very simplistic layout of my environment.
I configured mDNS on the EWC according to the documentation and can't get clients (PC's, iPhones, MAC's and tablets) on VLAN138 to find the printer on VLAN100.
Show version and relevent mDNS configuration on the EWC:
Cisco IOS XE Software, Version 17.15.02b
Cisco IOS Software [IOSXE], C9800-AP Software (C9800-AP-K9_IOSXE-UNIVERSALK9-M), Version 17.15.2b, RELEASE SOFTWARE (fc2).
WC#show run
mdns-sd gateway
mdns-ap-service-policy ECH-Service
!
mdns-sd wired-filter ECH-Wired
match vlan 100,110,140
!
mdns-sd service-definition ECH-Service
description BonJour Services
service-type BonJour Services
!
mdns-sd service-list ECH-List-In IN
match airplay
match ECH-Service
match printer-ipp
match apple-airdrop
match apple-homekit
match amazon-fire-tv
match apple-airprint
match apple-file-share
match airserver
match apple-rdp
match homesharing
match printer-lpd
match printer-ipps
match apple-remote-login
match scanner
match multifunction-printer
match apple-tv
!
mdns-sd service-list ECH-List-Out OUT
match airplay
match apple-tv
match ECH-Service
match homesharing
match printer-ipp
match printer-lpd
match printer-ipps
match apple-airdrop
match apple-homekit
match amazon-fire-tv
match apple-airprint
match scanner
match airserver
match apple-rdp
match apple-remote-login
match multifunction-printer
!
mdns-sd service-policy ECH-Service
service-list ECH-List-In IN
service-list ECH-List-Out OUT
location lss
!
!
mdns-sd flex-profile ECH-Flex
wired-vlan-range 100,110,140
wired-service-policy ECH-Service
interface GigabitEthernet0
mac-address 0000.5e00.0101
ip dhcp client client-id GigabitEthernet0
ip dhcp client broadcast-flag clear
ip address 172.168.100.6 255.255.255.0
no negotiation auto
mdns-sd gateway
wireless aaa policy default-aaa-policy
wireless cts-sxp profile default-sxp-profile
wireless ewc-ap preferred-master ECH-CAP9120AXI-EWC-138
wireless management interface GigabitEthernet0
wireless profile airtime-fairness default-atf-policy 0
wireless profile dot11be default-dot11be-profile
description "Default 802.11be profile"
wireless profile flex 138-Lexington-Ave
ip http client proxy 0.0.0.0 0
mdns-sd profile ECH-Flex
native-vlan-id 100
vlan-name VLAN100
vlan-id 100
vlan-name VLAN110
vlan-id 110
wireless profile flex default-flex-profile
description "default flex profile"
wireless profile image-download default
description "default image download profile"
image-download-mode tftp
tftp-image-path /
tftp-image-server 172.168.100.4
wireless profile mesh default-mesh-profile
description "default mesh profile"
wireless profile radio default-radio-profile
description "Preconfigured default radio profile"
wireless profile policy 138-Lexington-Ave_WLANID_1
no central association
no central dhcp
no central switching
description 138-Lexington-Ave_ECH-CAP1852I-138-100
service-policy input platinum-up
service-policy output platinum
vlan 100
no shutdown
wireless profile policy 138-Lexington-Ave_WLANID_2
no central association
no central dhcp
no central switching
description 138-Lexington-Ave_ECH-CAP1852I-138-110
service-policy input gold-up
service-policy output gold
vlan 110
no shutdown
wireless tag site default-site-tag
ap-profile 138-Lexington-Ave
description "default site tag"
flex-profile 138-Lexington-Ave
no local-site
wireless tag policy default-policy-tag
description "default policy-tag"
wlan ECH-CAP1852I-138-100 policy 138-Lexington-Ave_WLANID_1
wlan ECH-CAP1852I-138-110 policy 138-Lexington-Ave_WLANID_2
wlan ECH-CAP1852I-138-140 policy 138-Lexington-Ave_WLANID_3
wlan ECH-CAP1852I-138-150 policy 138-Lexington-Ave_WLANID_7
wlan ECH-CAP1852I-138-Guest policy 138-Lexington-Ave_WLANID_5
Show commands:
EWC#show mdns-sd summary
mDNS Gateway: Enabled
Mode: Default
Source Interface: GigabitEthernet0
Active Query Periodicity (in minutes): 30
Query response threshold: 30
mDNS Query Type: PTR only
Service Record TTL: Enhanced
Location: LSS
Transport Type: IPv4
mDNS AP service policy: ECH-Service
EWC#show mdns-sd cache wired
--------------------------------------------------------------- PTR Records ---------------------------------------------------------------
RECORD-NAME TTL TYPE VLAN CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
_ipp._tcp.local 4500 WIRED 100 1060.4b19.29e8 HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.local
_universal._sub._ipp._tcp.local 4500 WIRED 100 1060.4b19.29e8 HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.local
--------------------------------------------------------------- SRV Records ---------------------------------------------------------------
RECORD-NAME TTL TYPE VLAN CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
unknown
-------------------------------------------------------------- A/AAAA Records -------------------------------------------------------------
RECORD-NAME TTL TYPE VLAN CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
unknown
--------------------------------------------------------------- TXT Records ---------------------------------------------------------------
RECORD-NAME TTL TYPE VLAN CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.l 4500 WIRED 100 1060.4b19.29e8 [255]'txtvers=1''qtotal=1''pdl=application/postscr
EWC#show mdns-sd cache type ptr
RECORD-NAME TTL TYPE ID CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
_ipp._tcp.local 4500 WIRED 100 1060.4b19.29e8 HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.local
_universal._sub._ipp._tcp.local 4500 WIRED 100 1060.4b19.29e8 HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.local
EWC#show mdns-sd cache type txt
RECORD-NAME TTL TYPE ID CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.l 4500 WIRED 100 1060.4b19.29e8 [255]'txtvers=1''qtotal=1''pdl=application/postscr
EWC#show mdns-sd cache
------------------------------------------------------------- PTR Records -----------------------------------------------------------------
RECORD-NAME TTL TYPE ID CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
_ipp._tcp.local 4500 WIRED 100 1060.4b19.29e8 HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.local
_universal._sub._ipp._tcp.local 4500 WIRED 100 1060.4b19.29e8 HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.local
_raop._tcp.local 4500 WIRED 110 8494.37e2.16cc EEE4AAFA40FE@Elib^@^Ys MacBook Air._raop._tcp.local
_airplay._tcp.local 4500 WIRED 110 8494.37e2.16cc Elib^@^Ys MacBook Air._airplay._tcp.local
------------------------------------------------------------- SRV Records -----------------------------------------------------------------
RECORD-NAME TTL TYPE ID CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
Elib^@^Ys MacBook Air._airplay._tcp.local 4500 WIRED 110 8494.37e2.16cc 0 0 7000 Elis-MacBook-Air.local
EEE4AAFA40FE@Elib^@^Ys MacBook Air._raop._tcp.l 4500 WIRED 110 8494.37e2.16cc 0 0 7000 Elis-MacBook-Air.local
------------------------------------------------------------ A/AAAA Records ---------------------------------------------------------------
RECORD-NAME TTL TYPE ID CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
Elis-MacBook-Air.local 4500 WIRED 110 8494.37e2.16cc 172.168.110.18
------------------------------------------------------------- TXT Records -----------------------------------------------------------------
RECORD-NAME TTL TYPE ID CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
Elib^@^Ys MacBook Air._airplay._tcp.local 4500 WIRED 110 8494.37e2.16cc [255]'act=2''acl=0''deviceid=EE:E4:AA:FA:40:FE''fe
EEE4AAFA40FE@Elib^@^Ys MacBook Air._raop._tcp.l 4500 WIRED 110 8494.37e2.16cc [184]'cn=0,1,2,3''da=true''et=0,3,5''ft=0x4A7FCFD5
HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.l 4500 WIRED 100 1060.4b19.29e8 [255]'txtvers=1''qtotal=1''pdl=application/postscr
EWC#show mdns-sd statistics
------------------------------------------------------
Consolidated mDNS Packet Statistics
------------------------------------------------------
mDNS stats last reset time: 02/28/25 09:13:19
mDNS packets sent: 31352
IPv4 sent: 31352
IPv4 advertisements sent: 31170
IPv4 queries sent: 182
IPv6 sent: 0
IPv6 advertisements sent: 0
IPv6 queries sent: 0
Multicast sent: 0
IPv4 sent: 0
IPv6 sent: 0
mDNS packets received: 389210
advertisements received: 185980
queries received: 203230
IPv4 received: 389210
IPv4 advertisements received: 185980
IPv4 queries received: 203230
IPv6 received: 0
IPv6 advertisements received: 0
IPv6 queries received: 0
mDNS packets dropped: 472896
Query Type Statistics
PTR queries received: 3947
SRV queries received: 0
A queries received: 3985
AAAA queries received: 3107
TXT queries received: 158
ANY queries received: 934
OTHER queries received: 0
------------------------------------------------------
Wired mDNS Packet Statistics
------------------------------------------------------
mDNS stats last reset time: 02/28/25 09:17:12
mDNS packets sent: 31352
IPv4 sent: 31352
IPv4 advertisements sent: 31170
IPv4 queries sent: 182
IPv6 sent: 0
IPv6 advertisements sent: 0
IPv6 queries sent: 0
Multicast sent: 0
IPv4 sent: 0
IPv6 sent: 0
mDNS packets received: 389210
advertisements received: 185980
queries received: 203230
IPv4 received: 389210
IPv4 advertisements received: 185980
IPv4 queries received: 203230
IPv6 received: 0
IPv6 advertisements received: 0
IPv6 queries received: 0
mDNS packets dropped: 472896
Query Type Statistics
PTR queries received: 3947
SRV queries received: 0
A queries received: 3985
AAAA queries received: 3107
TXT queries received: 158
ANY queries received: 934
OTHER queries received: 0
------------------------------------------------------
mDNS Packet Statistics, for WLAN: 1
------------------------------------------------------
mDNS stats last reset time: 02/28/25 09:13:37
mDNS packets sent: 0
IPv4 sent: 0
IPv4 advertisements sent: 0
IPv4 queries sent: 0
IPv6 sent: 0
IPv6 advertisements sent: 0
IPv6 queries sent: 0
Multicast sent: 0
IPv4 sent: 0
IPv6 sent: 0
mDNS packets received: 0
advertisements received: 0
queries received: 0
IPv4 received: 0
IPv4 advertisements received: 0
IPv4 queries received: 0
IPv6 received: 0
IPv6 advertisements received: 0
IPv6 queries received: 0
mDNS packets dropped: 0
Query Type Statistics
PTR queries received: 0
SRV queries received: 0
A queries received: 0
AAAA queries received: 0
TXT queries received: 0
ANY queries received: 0
OTHER queries received: 0
------------------------------------------------------
mDNS Packet Statistics, for WLAN: 2
------------------------------------------------------
mDNS stats last reset time: 02/28/25 09:13:37
mDNS packets sent: 0
IPv4 sent: 0
IPv4 advertisements sent: 0
IPv4 queries sent: 0
IPv6 sent: 0
IPv6 advertisements sent: 0
IPv6 queries sent: 0
Multicast sent: 0
IPv4 sent: 0
IPv6 sent: 0
mDNS packets received: 0
advertisements received: 0
queries received: 0
IPv4 received: 0
IPv4 advertisements received: 0
IPv4 queries received: 0
IPv6 received: 0
IPv6 advertisements received: 0
IPv6 queries received: 0
mDNS packets dropped: 0
Query Type Statistics
PTR queries received: 0
SRV queries received: 0
A queries received: 0
AAAA queries received: 0
TXT queries received: 0
ANY queries received: 0
OTHER queries received: 0
------------------------------------------------------
mDNS Packet Statistics, for WLAN: 3
------------------------------------------------------
mDNS stats last reset time: 02/28/25 09:13:37
mDNS packets sent: 0
IPv4 sent: 0
IPv4 advertisements sent: 0
IPv4 queries sent: 0
IPv6 sent: 0
IPv6 advertisements sent: 0
IPv6 queries sent: 0
Multicast sent: 0
IPv4 sent: 0
IPv6 sent: 0
mDNS packets received: 0
advertisements received: 0
queries received: 0
IPv4 received: 0
IPv4 advertisements received: 0
IPv4 queries received: 0
IPv6 received: 0
IPv6 advertisements received: 0
IPv6 queries received: 0
mDNS packets dropped: 0
Query Type Statistics
PTR queries received: 0
SRV queries received: 0
A queries received: 0
AAAA queries received: 0
TXT queries received: 0
ANY queries received: 0
OTHER queries received: 0
------------------------------------------------------
mDNS Packet Statistics, for WLAN: 5
------------------------------------------------------
mDNS stats last reset time: 02/28/25 09:13:37
mDNS packets sent: 0
IPv4 sent: 0
IPv4 advertisements sent: 0
IPv4 queries sent: 0
IPv6 sent: 0
IPv6 advertisements sent: 0
IPv6 queries sent: 0
Multicast sent: 0
IPv4 sent: 0
IPv6 sent: 0
mDNS packets received: 0
advertisements received: 0
queries received: 0
IPv4 received: 0
IPv4 advertisements received: 0
IPv4 queries received: 0
IPv6 received: 0
IPv6 advertisements received: 0
IPv6 queries received: 0
mDNS packets dropped: 0
Query Type Statistics
PTR queries received: 0
SRV queries received: 0
A queries received: 0
AAAA queries received: 0
TXT queries received: 0
ANY queries received: 0
OTHER queries received: 0
------------------------------------------------------
mDNS Packet Statistics, for WLAN: 7
------------------------------------------------------
mDNS stats last reset time: 02/28/25 09:13:37
mDNS packets sent: 0
IPv4 sent: 0
IPv4 advertisements sent: 0
IPv4 queries sent: 0
IPv6 sent: 0
IPv6 advertisements sent: 0
IPv6 queries sent: 0
Multicast sent: 0
IPv4 sent: 0
IPv6 sent: 0
mDNS packets received: 0
advertisements received: 0
queries received: 0
IPv4 received: 0
IPv4 advertisements received: 0
IPv4 queries received: 0
IPv6 received: 0
IPv6 advertisements received: 0
IPv6 queries received: 0
mDNS packets dropped: 0
Query Type Statistics
PTR queries received: 0
SRV queries received: 0
A queries received: 0
AAAA queries received: 0
TXT queries received: 0
ANY queries received: 0
OTHER queries received: 0
EWC# show mdns-sd service statistics
Service Name Service Count
-----------------------------------------------------------------------------
_ipp._tcp.local 1
_universal._sub._ipp._tcp.local 1
EWC#show mdns-sd cache
------------------------------------------------------------- PTR Records -----------------------------------------------------------------
RECORD-NAME TTL TYPE ID CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
_ipp._tcp.local 4500 WIRED 100 1060.4b19.29e8 HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.local
_universal._sub._ipp._tcp.local 4500 WIRED 100 1060.4b19.29e8 HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.local
------------------------------------------------------------- SRV Records -----------------------------------------------------------------
RECORD-NAME TTL TYPE ID CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
unknown
------------------------------------------------------------ A/AAAA Records ---------------------------------------------------------------
RECORD-NAME TTL TYPE ID CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
unknown
------------------------------------------------------------- TXT Records -----------------------------------------------------------------
RECORD-NAME TTL TYPE ID CLIENT-MAC RR-RECORD-DATA
-------------------------------------------------------------------------------------------------------------------------------------------
HP LaserJet M1536dnf MFP (1929E8)._ipp._tcp.l 4500 WIRED 100 1060.4b19.29e8 [255]'txtvers=1''qtotal=1''pdl=application/postscr
EWC#show mdns-sd default-service-list
--------------------------------------------
mDNS Default Service List
--------------------------------------------
Service Definition: apple-tv
Service Names: _airplay._tcp.local
_raop._tcp.local
Service Definition: printer-ipps
Service Names: _ipps._tcp.local
Service Definition: apple-airprint
Service Names: _ipp._tcp.local
_universal._sub._ipp._tcp.local
_universal._sub._ipps._tcp.local
Service Definition: google-chromecast
Service Names: _googlecast._tcp.local
_googlerpc._tcp.local
_googlezone._tcp.local
Service Definition: apple-remote-login
Service Names: _sftp-ssh._tcp.local
_ssh._tcp.local
Service Definition: apple-screen-share
Service Names: _rfb._tcp.local
Service Definition: google-expeditions
Service Names: _googexpeditions._tcp.local
Service Definition: apple-windows-fileshare
Service Names: _smb._tcp.local
EWC#show mdns-sd master-service-list
--------------------------------------------
mDNS Master Service List
--------------------------------------------
Service Definition: all
Service Names: all
Service Definition: fax
Service Names: _fax-ipp._tcp.local
Service Definition: roku
Service Names: _rsp._tcp.local
Service Definition: airplay
Service Names: _airplay._tcp.local
Service Definition: scanner
Service Names: _scanner._tcp.local
Service Definition: spotify
Service Names: _spotify-connect._tcp.local
Service Definition: airtunes
Service Names: _raop._tcp.local
Service Definition: apple-tv
Service Names: _airplay._tcp.local
_raop._tcp.local
Service Definition: audinate
Service Names: _dante-safe._udp.local
_dante-upgr._udp.local
_netaudio-arc._udp.local
_netaudio-chan._udp.local
_netaudio-cmc._udp.local
_netaudio-dbc._udp.local
Service Definition: airserver
Service Names: _airplay._tcp.local
_airserver._tcp.local
Service Definition: apple-rdp
Service Names: _afpovertcp._tcp.local
_net-assistant._tcp.local
Service Definition: web-server
Service Names: _http._tcp.local
Service Definition: ECH-Service
Service Names: BonJour Services
Service Definition: homesharing
Service Names: _home-sharing._tcp.local
Service Definition: printer-ipp
Service Names: _ipp._tcp.local
Service Definition: printer-lpd
Service Names: _printer._tcp.local
Service Definition: workstation
Service Names: _workstation._tcp.local
Service Definition: printer-ipps
Service Names: _ipps._tcp.local
Service Definition: apple-airdrop
Service Names: _airdrop._tcp.local
Service Definition: apple-homekit
Service Names: _hap._tcp.local
_homekit._tcp.local
Service Definition: apple-keynote
Service Names: _keynotecontrol._tcp.local
_keynotepair._tcp.local
Service Definition: amazon-fire-tv
Service Names: _amzn-wplay._tcp.local
Service Definition: apple-airprint
Service Names: _ipp._tcp.local
_universal._sub._ipp._tcp.local
_universal._sub._ipps._tcp.local
Service Definition: printer-socket
Service Names: _pdl-datastream._tcp.local
Service Definition: apple-continuity
Service Names: _companion-link._tcp.local
Service Definition: apple-file-share
Service Names: _afpovertcp._tcp.local
Service Definition: apple-timecapsule
Service Names: _adisk._tcp.local
_afpovertcp._tcp.local
Service Definition: google-chromecast
Service Names: _googlecast._tcp.local
_googlerpc._tcp.local
_googlezone._tcp.local
Service Definition: apple-itunes-music
Service Names: _daap._tcp.local
Service Definition: apple-itunes-photo
Service Names: _dpap._tcp.local
Service Definition: apple-remote-login
Service Names: _sftp-ssh._tcp.local
_ssh._tcp.local
Service Definition: apple-screen-share
Service Names: _rfb._tcp.local
Service Definition: google-expeditions
Service Names: _googexpeditions._tcp.local
Service Definition: philips-hue-lights
Service Names: _hap._tcp.local
Service Definition: apple-remote-events
Service Names: _eppc._tcp.local
Service Definition: apple-itunes-library
Service Names: _atc._tcp.local
Service Definition: multifunction-printer
Service Names: _fax-ipp._tcp.local
_ipp._tcp.local
_scanner._tcp.local
Service Definition: apple-timecapsule-mgmt
Service Names: _airport._tcp.local
Service Definition: apple-windows-fileshare
Service Names: _smb._tcp.local
Service Definition: itune-wireless-devicesharing2
Service Names: _apple-mobdev2._tcp.local
EWC#show mdns-sd ap
The output from Wireless Config Analyzer Express:
