AS6102T + AS6004U + AS-U2.5G2 - Network Problems
Posted: Wed Feb 17, 2021 1:23 am
All,
So I recently added the AS-U2.5G2 to my AS6102T + AS6004U setup, as part of going to 10Gig in my home LAN.
I've gone with a static IP address scheme, and everything works IP-wise, as follows:
EXTLAN1
IPv4 Address - 192.168.1.4
Subnet Mask - 255.255.255.0
Gateway - 192.168.1.1
DNS Servers - just using Google for now - 8.8.8.8 and 8.8.6.6
The new AS-U2.5G2 comes up fine and auto-negotiates 2.5G bi-directional with the Mikrotik CRS305 with a 10Gig SFP+. No problem.
The AS6102T is comes up fine on my LAN - I can ping it, everything is reachable, UPnP works fine and all my files are reachable.
On the same Mikrotik CRS305 switch, I also have an iMac connected via a 10Gig SFP+ fiber link, and it sees the internet no problem, and both the AS6102T and the CRS305 are both in the same switch instance.
Problems - there are three....
1. DNS - the AS6102T doesn't see DNS servers at all - therefore no automated ADM updates or remote access
2. Because I am now on 2.5Gig, I wanted to change the MTU size to 9000, and it won't take it, and gives me the message "The default gateway is not on the same network segment (subnet) defined by the IP address and subnet mask. (Ref. 5302)" - which you can see my IP info for EXTLAN1 above - nothing wrong with my IP addressing scheme!
3. I try to change the EXTLAN1 network interface to obtain it's IP address via DHCP, and I get the same message as my problem 2 - "The default gateway is not on the same network segment (subnet) defined by the IP address and subnet mask. (Ref. 5302)". So now, the NAS doesn't support DHCP to get it's IP address.
So, I am basically stuck with an AS6102T + AS6004U +AS-U2.5G2 that works only part of the way....any ideas? Is it some weird USB 3.0 bandwidth sharing issue? USB 3.0 supports 5Gbps, and the there 3 of these on the AS6102T, but maybe the buss all three are on isn't 3x5Gbps, but something less and it's causing issues? Or is it a bug in ADM?
Apologies for the length - any thoughts?
Dennis
So I recently added the AS-U2.5G2 to my AS6102T + AS6004U setup, as part of going to 10Gig in my home LAN.
I've gone with a static IP address scheme, and everything works IP-wise, as follows:
EXTLAN1
IPv4 Address - 192.168.1.4
Subnet Mask - 255.255.255.0
Gateway - 192.168.1.1
DNS Servers - just using Google for now - 8.8.8.8 and 8.8.6.6
The new AS-U2.5G2 comes up fine and auto-negotiates 2.5G bi-directional with the Mikrotik CRS305 with a 10Gig SFP+. No problem.
The AS6102T is comes up fine on my LAN - I can ping it, everything is reachable, UPnP works fine and all my files are reachable.
On the same Mikrotik CRS305 switch, I also have an iMac connected via a 10Gig SFP+ fiber link, and it sees the internet no problem, and both the AS6102T and the CRS305 are both in the same switch instance.
Problems - there are three....
1. DNS - the AS6102T doesn't see DNS servers at all - therefore no automated ADM updates or remote access
2. Because I am now on 2.5Gig, I wanted to change the MTU size to 9000, and it won't take it, and gives me the message "The default gateway is not on the same network segment (subnet) defined by the IP address and subnet mask. (Ref. 5302)" - which you can see my IP info for EXTLAN1 above - nothing wrong with my IP addressing scheme!
3. I try to change the EXTLAN1 network interface to obtain it's IP address via DHCP, and I get the same message as my problem 2 - "The default gateway is not on the same network segment (subnet) defined by the IP address and subnet mask. (Ref. 5302)". So now, the NAS doesn't support DHCP to get it's IP address.
So, I am basically stuck with an AS6102T + AS6004U +AS-U2.5G2 that works only part of the way....any ideas? Is it some weird USB 3.0 bandwidth sharing issue? USB 3.0 supports 5Gbps, and the there 3 of these on the AS6102T, but maybe the buss all three are on isn't 3x5Gbps, but something less and it's causing issues? Or is it a bug in ADM?
Apologies for the length - any thoughts?
Dennis