similar to: Fail-over uplink problem

Hello, Here is my network: ------------------ ------------- ----------- Linux box ----------- GRE --------- Cisco ---------- ------------------ ------------- What I wan to accomplish. I want ripv2 to go across (both ways) through the GRE tunnel. No packets are being passed thought the GRE

Hi There, we only have a /29 internet routable network from our ISP and a Cisco 1601 router with serial interface doing all the routing. I was thinking of replacing that cisco with a linux box with a sangoma card, also using quagga with ospf on for my internel networks has anyone have expierence with this? thanks Sew

Hello, I''m following this HOWTO http://linux-ip.net/html/adv-multi-internet.html to route outgoing SSH from a secondary ISP. I can see using tcpdump,jnettop,iftop that when one of the computers located in my internal network is trying to SSH to a box online using SSH, packets are routed via the secondary internet ethernet card. However, packets don''t seem to know how to get back.

Hi Guys, I would just like to have advice and pointers of the best way would be, Someting like BGP or OSPF? I have 2 internet connections at diffrent locations. let say connection A and B 1.) router A has a fast internet connection and a seperate interface for clients using /lan/pppoe/ipsec etc and another ethernet interface going to router B 2.) router B has similiar setup as router A and

Hi There, We currently using iproute2 for load balancing. However we need more upload speed as we load balance over 3 dsl lines. I''ve been looking for a way to combine the upload speed to more faster. Found a site called www.upstreaminter.net where these guys bond the adsl channels to improve uploads, Since downloading is problem as its need to know the ip address of the downloader they

hello, I try to use iptables rules to drop skype trafic. The iptables rule is : iptables -I FORWARD -p udp -m length --length 39 -m u32 --u32 ''27&0x8f=7'' --u32 ''31=0x01020304'' -j ACCEPT the problem I encounter is that i can''t have the match u32 for iptables. Could someone help me ?

Hello, does anybody know if quagga for CentOS 5.3 is compiled with -enable-multipath? I want to implement ECMP over 2 ISP. Thanks, Cristi Carstea

Hi Everyone, I have a routing situation where Tinc looks like it could come in extremely useful, but I have a query I hope someone can cast an eye on, as I'm unsure whether Tinc can help me here. I currently have a Quagga OSPF linux router which connects LAN A to LAN B over the quickest available of two routes (both routes at both ends connect to Quagga boxes to prevent collisions). One of

(I know that what I''m wanting to do can be done, but for some reason I can not get it to work for the life of me. I think I have been staring at it too long and too closely.) I have two different internet connections from two cooperating ISPs. I also have a small 8 block of IPs that are globally routable that both ISPs will route to me via my world facing globally routable IPs that

Hi List, FYI. We have been using CentOS 6.4 and have 2 vpn/gre tunnels to separate cisco rtrs using ospf. with kernel 2.6.32-358.23.2 We have upgraded to 6.5 bit using kernel 2.6.32-431.5.1 and the exact same configuration scripts for our vpn/gre tunnels. What I see is the first gre tunnel works great and I get an ospf neighbor. The second tunnel comes up and I can ping across it and I see

All, With the dual-ISP support in the latest versions of Shorewall, is it also possible to setup dual-VPN with something like OpenVPN? If so, what are the high levels steps that would need to be completed? Aaron

Hi folks, At work, we're considering the idea to replace the presente router with a stardard box with CentOS as a SO and GNU Zebra as a routing software. The line is a 4Mbps SDSL. ?What do you think about Zebra and what are your experiencies with it? Any feedback will be so appreciated. TIA.

Hello All, Ive been doing more and more research on trying to setup a cluster/load balancer for Asterisk. All the Asterisk boxes would be using a config that is the same between them all (via a DB), but we want one location to point the phones to, and from there that machine/device will send it to a Asterisk server so the call can be processed. I know you cant balance the whole call, ie: once the

I''m getting an error when shorewall is trying to add the default routes for my multi-isp configuration. I''ve attached a shorewall dump... If anyone can give some input I''d appreciate it. RTNETLINK answers: Invalid argument ERROR: Command "ip -4 route replace default scope global table 254 nexthop via 67.110.119.245 dev eth3 weight 1 nexthop via 66.29.181.113

Hello, Can anyone tell me why the maximum number of members in a multicast group is set at 20? Are there issues with increasing this number? Any information would be greatly appreciated. Thanks, Steve Clark -- "They that give up essential liberty to obtain temporary safety, deserve neither liberty nor safety." (Ben Franklin) "The course of history shows that as a

Hi, With kernel 2.4 I was able to use equalize to send our outgoing packets to two different routers (our isp supports this setup), like this: ip route add default src ip.a.dd.rr equalize nexthop via <router1> weight 1 nexthop via <router2> weight 1 The two routes were used equally on a per packet basis, not per flow or per cached route, but per packet, each line has 800k upload

Hello! I have trouble with multipath routing. Those options are enabled in kernel: [*] IP: policy routing [*] IP: equal cost multipath [*] IP: equal cost multipath with caching support (EXPERIMENTAL) <*> MULTIPATH: round robin algorithm But issuing: ip r a 1.2.3.0/23 scope global equalize nexthop via 80.245.176.11 \ dev eth0 weight 1 nexthop via 80.245.176.13 dev eth0

Greetings List Members, I''ll firstly apologise if this isn''t the place that I should be posting this message but here goes. What I want to do is have a VPN (PPTP/IPSEC/CIPE/etc) server, but it must support more than one simultaneous connection. I currently have a PPTP VPN server setup that has port 1723 and protocol 47 DNAT''d through to the internal IP

Hi, I have recently updated one of my systems from CentOs 6.4 to CentOS 6.5. This systems is used as a RIPv2 routing server with quagga which is the termination point of some GRE tunnels. While running CentOS 6.4 I see the multicast packages arriving at the eth0 and the GRE tunnel interface. While running under CentOs 6.5 I can see the multicast packages arriving at the eth0 but not on the GRE

I need to send multicast traffic through a GRE tunnel between two Linux routers. The tunnel works for normal IP packets, but I can''t see how to make it work for multicast. Here''s the setup: 10.10.10.0/24 LAN-B--------------RtrB-------------RtrC--------------LAN-C 192.168.2.0/24 192.168.1.0/24 RtrB interfaces: eth0