Has anyone come across this sort of problem before?
I have uprgaded a CCR1009-7G-1C-1S+ from 6.48.4 to 6.49.7 which I have done on other routers without issue.
This router has 40+ VLANS each VLAN runs a combination of IPv4 & IPv6 addresses
The router provides NAT to clusters of up to 10 internal e.g. 10.20.n.n/16 to 1 routable 212.42.n.n (and other routable ranges)
Before upgrade the router had been operational without problems for 400+ days immediately following the upgrade all routable IPv4 addresses on just 1 VLAN stopped working. The IPv6 addresses on the same VLAN worked as normal.
There was nothing in the logs that suggested anything had been disabled, but any ping to any of the addresses on the VLAN returned no route to host. Rebooting the router had no effect.
The only way to recover the situation was to disable and enable each affected IPv4 address on the affected VLAN
I have another 2 routers with a similar config and have posponed their upgrade until I find some sort of plausible reason for the above upgrade problems.
Anyone got any suggestions ideas?
Thank you very much,
John
Are you doing VLANs correctly? You’re supposed to use a bridge:
https://help.mikrotik.com/docs/display/ROS/Basic+VLAN+switching
Yes, the bridge is used extensively
E.G
0 bridge=bridge vlan-ids=600 tagged=bridge,sfp-sfpplus1 untagged=“” current-tagged=bridge,sfp-sfpplus1 current-untagged=“”
1 bridge=bridge vlan-ids=7 tagged=bridge,sfp-sfpplus1 untagged=“” current-tagged=bridge,sfp-sfpplus1 current-untagged=“”
2 bridge=bridge vlan-ids=1 tagged=“” untagged=combo1 current-tagged=“” current-untagged=“”
3 bridge=bridge vlan-ids=20 tagged=bridge,sfp-sfpplus1 untagged=“” current-tagged=bridge,sfp-sfpplus1 current-untagged=“”
4 bridge=bridge vlan-ids=12 tagged=bridge,sfp-sfpplus1 untagged=“” current-tagged=bridge,sfp-sfpplus1 current-untagged=“”
5 bridge=bridge vlan-ids=50 tagged=bridge,sfp-sfpplus1 untagged=“” current-tagged=bridge,sfp-sfpplus1 current-untagged=“”
rest of config not included for brevity