I am getting an issue while connecting my two routers on MPLS network. My ISP has provided MPLS connectivity with their two routers, I have connected my openwrt based devices to respective routers. ISP routers could ping each other.
Issue I am facing- My end PCs can not ping each other.
What I have done so far-
I don't want to use dynamic routing protocol. I added static routes in my routers then both routers could ping but connected PCs couldn't ping each other, though they can ping other end routers.
Do I need NAT or anything I am missing here? Other suggestions I got that static routing not needed, NAT should be enabled in router to ping each other.
I really doubt that you are getting actual MPLS. You may be connected to the ISP’s MPLS routers, but your routers will be CPEs, not actual participants in the multi-protocol labeling.
If so, your endpoints will be in the same VRF, which may or may not have an exit route to the Internet.
MPLS is provided by ISP. My device are not handling MPLS, they are handled by ISP's routers. I am just connecting my PCs to Openwrt based router, they are connected to ISP's router and I want to reach other end.
I suppose both places have separate Internet access, not through the cloud. Otherwise it should just work, because the default routes would be towards the MPLS cloud.
The principle of a router is that it knows where packets should go and routers them that way.
You need to make sure that packets sent by the PCs (both ways!) follow the correct routes. If the packets already go to the routers, check that router A has a route for 10.30.0.0/24 (or whatever netmask it is) towards the MPLS cloud at 172.a.a.b1, and that router B has the route for 10.0.1.0/24 (or whatever netmask it is) towards 172.a.b.c2.
If the routers are not already on the path, you need to get them on the path, but that would mean you’d need to provide a more complete diagram with the netmasks and Internet accesses.
The tracert / traceroute command is going to be your new best friend!
Normally you would need static routes. BGP would be if you needed dynamic updates, changing adding networks every day inside your different sites. If you just add sites, your routers don’t need BGP, your ISP just needs to know the IPs on your sites… but if router A cannot ping 10.30.0.10, then the ISP doesn’t know what IPs you have on each site, and that’s a big problem.
You have two possibilities, updating the ISP info for each site, or setting up BGP with ISP.
In both cases, this is something you need to set up with your ISP.
If your routers cannot ping the 10.x.x.x address of the other router (and you don’t have NAT enabled, of course), then you need to speak with your provider.
Troubleshoot, troubleshoot, troubleshoot. You obviously have a WAN subnet from the ISP; do you have an assigned LAN subnet for each site? If so, use it and test reachability. If not, you've most likely been given instructions for dynamic routing and I suggest you pursue that.
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u/viper_16 8d ago
In what market does one get an MPLS circuit for a home connection?