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benoitc
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can a CRS be used as a basic router to pass an ip range using BGP?

Wed Jul 28, 2021 10:11 am

I would like to pass an IP or a range of IP to an internal router. This IP /range will be advertised using BGP but the other router (an udm pro) doesn’t handle it. So I was thinking to use router onntop but I figured that an L3 switch would be enouggh. Thid switch wiuld be p’ugged to the 2 core router i have and thn pass the IP to the router below:
R1        R2
   \        /
     CRS (BGP)
        |
   Other router
The CRS will publish its IP using BGP and forward the traffic (ipv4 and ipv6) to the other router.

Would a CRS317 works for it? Or does it really need L3 offloading and then w it for router OS 7?
 
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vecernik87
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Re: can a CRS be used as a basic router to pass an ip range using BGP?

Wed Jul 28, 2021 12:20 pm

It has the feature, but not the power. (e.g. good for small management/monitoring traffic etc) If you want to pass any reasonable traffic, you will need either L3 hw offload or full blown router.
 
benoitc
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Re: can a CRS be used as a basic router to pass an ip range using BGP?

Wed Jul 28, 2021 12:30 pm

would the crs317 with l3 offload under ROS7 beta do the trick? what is the state of BGP on it?
 
mbovenka
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Re: can a CRS be used as a basic router to pass an ip range using BGP?

Wed Jul 28, 2021 12:40 pm

The 317 with L3 HW offload will do the trick for IPv4, but offload has as yet no support for IPv6.
 
benoitc
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Re: can a CRS be used as a basic router to pass an ip range using BGP?

Wed Jul 28, 2021 12:52 pm

The 317 with L3 HW offload will do the trick for IPv4, but offload has as yet no support for IPv6.
ah that’s unfortunate :/ . I will use the rb4011 i have then. It’s too bad it doesn’t have 2sfp+ ports :/

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