172.18.148.123 router login
To open the admin panel, type 172.18.148.123 into your browser's address bar. If the page does not load, this is probably not the gateway address on your network — see the checks below.
172.18.148.123 router passwords
Where to find them:
- The label on the underside or back of the router — most manufacturers print the default admin username, password and Wi-Fi key there.
- The quick-start card or manual that came in the box.
- Your ISP's account portal, if the device was supplied by them — many set a unique password per line rather than a shared default.
No default username or password is documented for 172.18.148.123, and on virtualised or container interfaces there may be no web login at all. If a physical appliance responds, its own defaults are the only reliable ones: read the label on the chassis, the supplied setup leaflet, the manufacturer's support documentation for that model, or provider-issued instructions.
How to log in to your router
Type 172.18.148.123 into your browser's address bar and press Enter. Type it by hand rather than accepting an autocomplete suggestion, which often fills in a different address you visited before.
If the browser reports that it cannot reach 172.18.148.123, this is not the gateway address on your network. On Windows run ipconfig /all and read the Default Gateway line; on macOS open System Settings, Network, Details, TCP/IP; on Linux run ip route and read the address after "default via".
If the login page loads but rejects your credentials, and you have never changed them, use the defaults printed on the device's label. If they have been changed and nobody knows the new password, a factory reset is the only way back in.
If you do not know the password
For a virtual or container interface, there is nothing to reset in the usual sense; access is governed by the host or orchestrator, so credentials are recovered there. For physical equipment, a factory reset button returns everything to shipping state, discarding your configuration along with any custom wireless network name and password, which revert to the values on the device label.
172.18.148.123 lies in 172.16.0.0/12, the mid-size private allocation that runs from 172.16.x.x to 172.31.x.x under a 255.240.0.0 netmask and holds 1,048,576 addresses. This block causes more confusion than the others, because 172.x.x.x addresses outside that 16-to-31 window are ordinary routable public space. Here the address is private, reusable, and tied to no registrant or region.
Its /24 is 172.18.148.0, hosts numbered 172.18.148.1 to 172.18.148.254 with broadcast on 172.18.148.255. Position 123 is a middle-of-pool value characteristic of dynamic assignment, and this part of the 172.16/12 range is also frequently allocated by Docker bridge networking and similar virtual segments. Visitors generally reach this page after seeing the address in a container listing, a VPN route or a device inventory and wanting to know what it represents.
Whois information for 172.16.0.0/12
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2024, American Registry for Internet Numbers, Ltd.
#
NetRange: 172.16.0.0 - 172.31.255.255
CIDR: 172.16.0.0/12
NetName: PRIVATE-ADDRESS-BBLK-RFC1918-IANA-RESERVED
NetHandle: NET-172-16-0-0-1
Parent: ()
NetType: IANA Special Use
OriginAS:
Organization: Internet Assigned Numbers Authority (IANA)
RegDate: 1994-03-15
Updated: 2013-08-30
Comment: These addresses are in use by many millions of independently operated networks, which might be as small as a single computer connected to a home gateway, and are automatically configured in hundreds of millions of devices. They are only intended for use within a private context and traffic that needs to cross the Internet will need to use a different, unique address.
Comment:
Comment: These addresses can be used by anyone without any need to coordinate with IANA or an Internet registry. The traffic from these addresses does not come from ICANN or IANA. We are not the source of activity you may see on logs or in e-mail records. Please refer to http://www.iana.org/abuse/answers
Comment:
Comment: These addresses were assigned by the IETF, the organization that develops Internet protocols, in the Best Current Practice document, RFC 1918 which can be found at:
Comment: http://datatracker.ietf.org/doc/rfc1918
Ref: https://rdap.arin.net/registry/ip/172.16.0.0
OrgName: Internet Assigned Numbers Authority
OrgId: IANA
Address: 12025 Waterfront Drive
Address: Suite 300
City: Los Angeles
StateProv: CA
PostalCode: 90094
Country: US
RegDate:
Updated: 2012-08-31
Ref: https://rdap.arin.net/registry/entity/IANA
OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName: ICANN
OrgAbusePhone: +1-310-301-5820
OrgAbuseEmail: abuse@iana.org
OrgAbuseRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN
OrgTechHandle: IANA-IP-ARIN
OrgTechName: ICANN
OrgTechPhone: +1-310-301-5820
OrgTechEmail: abuse@iana.org
OrgTechRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN
Other documented addresses in 172.18.148.0/24
The 172.18.148.0/24 subnet runs from 172.18.148.1 to 172.18.148.254, with 172.18.148.255 reserved as the broadcast address. These are the addresses in it we hold router login details for.
All addresses we cover here
2 addresses in this subnet have a page; the most looked-up are listed here.