topic Re: WAN interface on 1590 with /31 Subnet Mask in Spark Firewall (SMB)

WAN interface on 1590 with /31 Subnet Mask

pnormanmtvh — Fri, 23 Apr 2021 08:40:40 GMT

Hi,

We are in the middle of a rollout of several 1590's to our sites. One issue that we experienced yesterday was statically assigning an IP address to the WAN interface with a /31 subnet mask. It allowed the assignment of the public IPaddress & SM but would not connect to the Internet. It was a connection to BT and they regularly use these /31 subnet masks to conserve IP space. We got around the problem by assigning a /28 subnet mask instead but this is not ideal.

Has anyone else seen this issue? Is it likely to get fixed in a future firmware release for these 1590's?

Thanks

pnormanmtvh

Re: WAN interface on 1590 with /31 Subnet Mask

PhoneBoy — Mon, 26 Apr 2021 04:28:59 GMT

Have you opened a TAC case on this?

Re: WAN interface on 1590 with /31 Subnet Mask

PhoneBoy — Mon, 26 Apr 2021 23:01:31 GMT

Supposedly this is supported in R80.20.x codebase (and also in R77.20.80+).
Recommend a TAC case.

Re: WAN interface on 1590 with /31 Subnet Mask

the_rock — Tue, 27 Apr 2021 00:43:28 GMT

Hm, weird...I had seen people use /31 mask on other CP models, and it does work, but never seen it on 1590. Not sure if its firmware limitation...

Re: WAN interface on 1590 with /31 Subnet Mask

Danh — Tue, 27 Apr 2021 06:28:30 GMT

Hi,

As PhoneBoy stated here, it should work on the 1590 but it seed the feature support got broken sometimes around R80.20.15.

Thanks for bringing it up. Please open a TAC case. Once we have it solved we can offer you to try the fix.

Re: WAN interface on 1590 with /31 Subnet Mask

pnormanmtvh — Wed, 28 Apr 2021 12:37:56 GMT

Thanks - TAC number is 6-0002653960

Re: WAN interface on 1590 with /31 Subnet Mask

Danh — Wed, 28 Apr 2021 13:39:26 GMT

Thanks.

TAC should return shortly with an image with a fix for you to try.

Re: WAN interface on 1590 with /31 Subnet Mask

Anis-BenMbarek — Fri, 17 Sep 2021 10:10:52 GMT

Hi,

I have the same issue and my customer ask me if the Appliance 1570 can support the /31 for the interface wan. I can't open a case yet because the Appliance is being purchased.

The mask /31 is it fixed and supported in R80.40 and earlier ?

Thank you for your help!

Re: WAN interface on 1590 with /31 Subnet Mask

Chris_Atkinson — Sat, 18 Sep 2021 00:42:07 GMT

It was fixed in R80.20.30, what release are you running on the 1570?

Re: WAN interface on 1590 with /31 Subnet Mask

Marco32 — Thu, 20 Oct 2022 08:14:26 GMT

Hi Chris,

I'm running R80.20.50 on 1570R and I can't configure /31 subnet. Can you assist me to solve this issue?

There's a fix for it?

Regards

Re: WAN interface on 1590 with /31 Subnet Mask

Chris_Atkinson — Thu, 20 Oct 2022 10:07:15 GMT

If you suspect there was a regression please contact TAC to investigate but it should work in current firmware versions.

Re: WAN interface on 1590 with /31 Subnet Mask

Marco32 — Thu, 20 Oct 2022 11:09:42 GMT

Hi Chris,

which version do you mean? I know R80.20.50 is the lates with full Central Management support.

R81.10 is not yet fully supported for Central Management.

Is it right?

Re: WAN interface on 1590 with /31 Subnet Mask

Chris_Atkinson — Thu, 20 Oct 2022 11:26:33 GMT

As above it should work from R80.20.30 onwards.

Is your issue configuring the IP on the appliance or in SmartConsole?