Found Linksys E2500
cisco_e2500_inside.jpg

Linksys E2500 v1

Serial Number 10A10C1B108941
10A1 = version 1 <— I have this one
10A2 = version 2
10A3 = version 3

Wall wort is 12V 0.5A

OpenWRT says it is a BCM43236 (on one page), but others says it is a BCM5358 including external websites different. One reference says we might be able to use it, but further down on the page, there is doubt.

DD-WRT seems to have a working image for both the ethernet and wifi.

The Wifi works on 2.4 & 2.5 GHz. There may be no 5 GHz because it uses the USB interface, of which there is none on v1.


DD-WRT


https://wiki.dd-wrt.com/wiki/index.php/Linksys_E2500

FLASHING https://wiki.dd-wrt.com/wiki/index.php/Linksys_E2500#Flashing_instructions_for_the_E2500

Known limitations

The 5 GHz radio does not function on this device when running dd-wrt because the 5 GHz radio USB interface (not PCI) 'brcmfmac' driver does not support the BCM43236 rev2 chip, only the rev3 'B' variant.

  • Note: Shibby and Advanced Tomato support the 5 GHz radio, but it is unstable

OpenWRT


https://openwrt.org/toh/hwdata/linksys/linksys_e2500_v1

https://openwrt.org/toh/linksys/linksys_e2500_v1

The Linksys E2500 was a router released by Linksys around April 2011. It features a Broadcom BCM43236 dual-band wireless chip. It has 4, 10/100 ethernet ports, and a single 10/100 WAN port.

It may work with DD-WRT (above)

Broadcom BCM53xx

https://wiki.openwrt.org/doc/hardware/soc/soc.broadcom.bcm53xx

Currently the following features are not supported:

  • Using USB 1.1 and USB 2.0 devices at the same time may cause a crash. See #19601
  • 802.11ac wireless devices (BCM4352/BCM4360 not usable at all), except for FullMAC BCM43602 (supported by brcmfmac)
  • 802.11n features on older wireless devices (BCM4331, BCM43217, BCM43227, etc.)

Broadcom BCM47xx

https://wiki.openwrt.org/doc/hardware/soc/soc.broadcom.bcm47xx

See list of Broadcom SoCs to see if your BCM* chipset is SSB or BCMA.

Wifi Drivers

There are different WiFi drivers for the Broadcom WiFi cores found in the BCM47xx SoCs or the PCI(e) or USB connected WiFi chips on the boards. There is no single driver that supports all chips and all drivers have their own pros and cons. Some chips are supported by three of these drivers and others are supported by none of these drivers.

Wikipedia


https://en.wikipedia.org/wiki/Linksys_routers#E2500

SPECS


https://www.smallnetbuilder.com/wireless/wireless-reviews/31578-cisco-linksys-e2500-advanced-dual-band-n-router-reviewed

CPU used : BCM5358

The E2500 supports the standard Linksys router feature set:

  • DHCP, Static, PPPoE, PPTP, L2TP, Telstra Cable WAN types
  • DHCP server with MAC address reservation
  • Built-in Dynamic DNS clients for TZO and DynDNS
  • Static and dynamic routing
  • SPI firewall disable, multicast, WAN ping and IDENT filtering and Proxy, Java, ActiveX and Cooking blocking
  • IPsec, PPTP and L2TP VPN passthrough (enabled by default)
  • Single port forwarding and Port Range forwarding and triggered ports
  • HTTPS admin access, remote management (HTTP / HTTPS) enable with IP range restriction and port setting
  • Incoming, outgoing, Security and DHCP onscreen log access with support for Linksys Logviewer recording
  • Access Restrictions with 10 deny or allow-based policies, each with its own list of clients and day/time schedule
  • Uplink (LAN to WAN) only QoS with High, Medium, Normal or Low Priority that can be applied to specific applications (divided into Application, Online Game and Voice Device groups), physical switch ports or specific MAC addresses.
  • WMM (Wireless MultiMedia) (enabled by default)
  • Wireless Guest Access - Internet-only access with its own SSID, but no security except a common password for all guests and the ability to limit the number of guests from 1 to 10. 2.4 GHz band only

Wireless Performance

https://www.smallnetbuilder.com/wireless/wireless-reviews/31578-cisco-linksys-e2500-advanced-dual-band-n-router-reviewed?start=1

The E2500 is Wi-Fi Certified and properly defaulted to 20 MHz bandwidth mode on the 2.4 GHz radio on power-up. The 5 GHz radio defaulted to Auto 20/40 mode.

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