Differences

This shows you the differences between two versions of the page.

--- networking:cisco-1841 [10/04/2025 22:22] – [Cisco ADSL & 1841 router] andrew
+++ networking:cisco-1841 [29/03/2026 12:48] (current) – [Cisco ADSL & 1841 router] andrew
@@ Line 1: / Line 1: @@
 ====== Cisco ADSL & 1841 router ======
-My Cisco 877 worked well but a few months ago started to reboot randomly. The cause of this is undetermined, but possibly PSU related. But the PSU has a cisco propretry connector so I cannot test by substitution.
+My [[cisco-877|Cisco 877]] worked well but a few months ago started to reboot randomly. The cause of this is undetermined, but possibly PSU related. But the PSU has a cisco proprietary connector so I cannot test by substitution.
 Consequently I decided to update to a new model, hence 1841.
@@ Line 8: / Line 8: @@
 The physical layout is different to the 877, so I have included it below.
+This router has itself been superceeded, due to a "Full Fibre" gigabit bearer on GPON, I needed a gigabit capable router, I went for a [[cisco-1921|Cisco 1921 Gigabit router]]. Despite the [[fibremarketinglies|marketing lies]] told about "fibre" internet, "full fibre" is still a lie as the ONT presents me with a copper RJ45 inteface, no fibre option is avaiable.
+----
 ===== Connections =====
@@ Line 45: / Line 49: @@
 Seems too easy.... and currently untested. Updates to follow.
-Well tested now, the above config worked without issue. After the fibre and NTE was installed and operaational, I connected the ethernet and after I had an L2 link, I disconnected the ADSL RJ45 cable. Whilst this was happening, I was running a ping from an internal machine to 1.1.1.1, after the ADSL was disconnected, this was lost, but 13 pings later it came back up using the fibre.
+Well tested now, the above config worked without issue. After the fibre and NTE was installed and operational, I connected the ethernet and after I had an L2 link, I disconnected the ADSL RJ45 cable. Whilst this was happening, I was running a ping from an internal machine to 1.1.1.1, after the ADSL was disconnected, this was lost, but 13 pings later it came back up using the fibre.
 So a 13s approx outage, impressive.