DocEmmettBrown DD-WRT Novice
Joined: 21 Dec 2014 Posts: 4
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Posted: Sun Dec 21, 2014 10:14 Post subject: Routing in PPTP tunnel multipoint topology |
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Hi all,
I've been a bit struggling with this for a few days and been searching on the forum and wikis but could not find an answer on this matter.
I have 3 DDWRT routers (25179), one configured as PPTP server and two others configured as PPTP client, and I want to bridge the three subnets.
ROUTER 1, PPTP SERVER: 192.168.10.0/24
ROUTER 2, PPTP CLIENT1: 192.168.20.0/24
ROUTER 3, PPTP CLIENT2: 192.168.30.0/24
I have configured the PPTP tunnels following the many wikis, and everything works perfectly between Client1 network and the PPTP server subnet and Client2 network and the PPTP server subnet, in both directions. So I can ping Router1 from Router 2 and viceversa, and Router 1 from Router 3 and viceversa.
Nonetheless, I am struggling to make client on Router 2 and 3 (so the two PPTP clients subnet, .20.0 and .30.0) talk to each other via Router 1. With the following configuration, and trying to traceroute from .20.0 to .30.0, I see packets are correctly forwarded to the PPTP server, but it seems they're stopping there. Not sure what I am missing here. Looking forward to some of your precious help
(Router 1) PPTP server routing table (ppp0 here is used for PPPoE connection to the provider)
192.168.20.0 192.168.20.1 255.255.255.0 UG 0 0 0 ppp2
192.168.20.1 * 255.255.255.255 UH 0 0 0 ppp2
192.168.30.0 192.168.30.1 255.255.255.0 UG 0 0 0 ppp1
192.168.30.1 * 255.255.255.255 UH 0 0 0 ppp1
(Router 2) PPTP client1 routing table
192.168.30.0 192.168.10.1 255.255.255.0 UG 0 0 0 ppp0
(Router 3) PPTP client2 routing table
192.168.20.0 192.168.10.1 255.255.255.0 UG 0 0 0 ppp0
Traceroute from Router 2 to Router 3 (should pass via Router 1):
C:\Users\user1>tracert 192.168.30.1
Tracing route to 192.168.30.1 over a maximum of 30 hops
1 1 ms 1 ms 1 ms router2 [192.168.20.1]
2 64 ms 61 ms 61 ms router1 [192.168.10.1]
3 * * * Request timed out.
Thanks in advance for your help! |
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