v7.6 [stable] is released!

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161

Thanks for the reply. Can you comment on the stability?

  • How long does it take to build the routing table if the router reboots or if the eBGP peer is disconnected?
  • Do you have any concerns or is running stable?
  • Would you recommend for ISP production environment?

Many thx.

162

On my test for make working v7 like v6 I dump all both full tables (not the IPv6 table) (I do not remember total number of records) on less than 3 min for sure.
I do not remember exact time.

163

Hap ac3 with ww2 succesfully updated from 7.5 stable thru system->packages. Routerboard updated without issues too.

164

It is stable, I have 2 CCR2216 with 2 BGP full table each, it works as edge routers, I can reboot each without impact of the backbone. iBgp is instant running, eBgp is about 3 mins to be 100%…all is IPV4 and IPV6…
Know issues: prefix counters still not works, don’t check advertised prefix without filter data(all lists) it take 100% CPU and memory leaks when build the list…
At overall it is running BGP as edge without issues, stable connection…

165

Are the CCR2116-12G-4S+ model?
Very powerful

166

Installed 7.6 without issues on several RB4011(no WiFi) and R5009. Basic setups (NAT, VLAN filtered bridge, some simple queues, basic firewalling, DHCP client/server), all working fine so far.

Different on CCR2216:
BPG/OSPF with large (300’000+) tables and L3HW enabled is unstable and peer connections flap with OSPF resets in the log.
For us, this issues started with 7.5 and did not improve with 7.6.
The OSPF CRC “fix” causes packet drops with (“%OSPF-4-ERRRCV: Received invalid packet: Bad Checksum”)

Had to go back to 7.4.1 to get things stable.

167

Cloud backup stopped working for me on all 7.6 devices( rb4011, crs305, audience)
Says error from apis.
Was working on 7.5.

168

Thx @rextended @armandfumal

We are planning an upgrade from 7.5 to 7.6 later this week on our BGP router, CCR2116. We are currently receiving around 130 000 routes from one eBGP peer, however when trying to add a second eBGP peer which would send us an estimated additional 160 000 routes we see the following error messages in the log “Write to bgp failed (32) { #buf=1 max=64 sk=Socket{ 5[0] } }”

This causes my entire routing table to stop working and routes to working BGP peers have to rebuild as well.
I am hoping 7.6 will fix this issue for us.

I will revert with some feedback.

169

@miasharmse84

I had the same issue with 7.5, corrected since 7.6 beta8…

170

updated hex from 7.2 to 7.6 but version remains the same
mtbug.PNG

171

I have the same problem

172

Hi,

You’ve updated RouterOS but not Routerboard, please follow https://www.youtube.com/watch?v=WPW3mHlEzn4

173

Hi,

You’ve posted on the forum without understanding the post you mention, please view https://forum.mikrotik.com/download/file.php?id=56334

174

My scripts in /ppp/profile is randomly not working anymore after upgraded to 7.6

:global new
:global old
:global status
    :set status [/interface get [/interface find  name=("pppoe-out1")] running]
    :if ($status=true) do={
     :set new [/ip address get [/ip address find dynamic=yes interface=("pppoe-out1")] address]
     :set new [:pick $new 0 ([:len $new] -3)]
     :set old [/ip firewall nat get [find comment=("src-nat")] to-addresses]
      :if  (!($new=$old)) do={
      /ip firewall nat set [/ip firewall nat find comment=("src-nat")] to-addresses=$new
       }}

By enable, disable interface pppoe-out1, to address=xx.xx.xx.xx sometimes don’t change, sometimes do.

/ip firewall nat
add action=src-nat chain=srcnat comment=src-nat ipsec-policy=out,none out-interface=pppoe-out1 to-addresses=xx.xx.xx.xx

Thanks

175

you must write script correctly, regardless routeros version, the differencies between v6 and v7 are on get address only

:if ([/interface get pppoe-out1 running]) do={
    :local new [/ip address get ([find where interface=pppoe-out1]->0) address]
    :set   new [:pick $new 0 [:find $new "/"]]
    :local old [/ip firewall nat get [find where comment="src-nat"] to-addresses]
    :if  ($new != $old) do={
        /ip firewall nat set [find where comment="src-nat"] to-addresses=$new
    }
}

or better, removing all useless parts, if you put this on ppp profile / scripts / on up:

/ip firewall nat set [find where comment="src-nat"] to-addresses=$"local-address"
176

VPNV4 routes not advertising to BGP peers

Anyone having the same issue?

177

or better, removing all useless parts, if you put this on ppp profile / scripts / on up:

/ip firewall nat set [find where comment=“src-nat”] to-addresses=$“local-address”

>

If "local-address" would never be broken, this should be the best way.
Thank you.
178

If "local-address" would never be broken, this should be the best way.
Thank you.

179

I was, until my internal OSPF links started flapping.

180

Glad to see it wasn’t just me. Did you try disabling L3HW offload? That fixed it for me on 7.6, but kind of defeated the purpose of using those routers in the first place. :slight_smile: