On Mon, 14 Jul 2014 07:53:06 +0530 - Hide quoted text - rajiv chavan <rc214...@gmail.com> wrote:
> Mon, 14 Jul 2014 07:26:20 +0530 > > Thank you Mett. > Traceroute packets from another host dropped by ISP netwoek at > 218.248.0.0 > > >netstat -rn > > Destination Gateway Genmask Flags MSS Window > irtt Iface 0.0.0.0 0.0.0.0 0.0.0.0 U > 0 0 0 ppp0 117.0.0.0 0.0.0.0 255.0.0.0 > U 0 0 0 eth0 117.222.8.1 0.0.0.0 > 255.255.255.255 UH 0 0 0 ppp0 127.0.0.0 > 0.0.0.0 255.0.0.0 U 0 0 0 lo > 192.168.1.0 0.0.0.0 255.255.255.0 U 0 > 0 0 eth0 224.0.0.0 0.0.0.0 240.0.0.0 > U 0 0 0 eth0 > > ifconfig eth0:0 yields: > >ip a > > 2: eth0: > link/ether > inet 192.168.1.2/24 brd 192.168.1.255 scope global eth0 > inet 117.222.15.189/8 brd 117.255.255.255 scope global eth0:0 > 3: ppp0: > link/ppp > inet 117.222.15.189 peer 117.222.8.1/32 scope global ppp0 > > This is a lone host - no network. > Address 117.222.15.189 does not map to modem-router. Nmap on modem > returns ports 23,80,5431 open. All ports on 117.222.15.189 filtered. > The state may not be reproducible. Oftentiimes eth0 gets only > 192.168.1.2 address (which can be pinged ),and ppp0 does not exist. > > > On 7/14/14, mett <m...@pmars.jp> wrote: > > On Mon, 14 Jul 2014 00:31:43 +0530 > > rajiv chavan <rc214...@gmail.com> wrote: > > > >> Sun, 13 Jul 2014 23:34:41 +0530 > >> > >> ip a output on an adsl+ (pppoe) client: > >> =snip= > >> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc > >> pfifo_fast state UP group default qlen 1000 > >> inet 192.168.1.2/24 brd 192.168.1.255 scope global eth0 > >> 3: ppp0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1460 qdisc > >> pfifo_fast state UNKNOWN group default qlen 3 > >> link/ppp > >> inet 117.222.15.189 peer 117.222.8.1/32 scope global ppp0 > >> =snip= > >> Can ping 127.0.0.1 and 192.168.1.1 but not 117.222.15.189 nor > >> 192.168.1.2 tcpdump on eth0 detcts pppoe packets from > >> 117.222.15.189 to hosts except 192.168.1.1-2 > >> nmap reports 117.222.15.189 ip but all posrt 1-1000 filtered. > >> > >> > > > > Hi, > > > > Everything is on the same interface? > > I don't think Eth0 can be routing for your local network and at the > > same time become ppp0 and route for a global network. > > I think you'll need some kind of subinterfaces if you want to use > > only one physical interface for your local network and the outside > > one. > > > > Maybe try a traceroute and you'll see where the packets are going. > > Also, check the routes(netstat -nr or route -ne). > > > > You might give a try one by one to see at what point it stops > > working: -try only the local network first and once it's working > > try to set up your pppoe link. > > > > hth > > > > > > -- > > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > > with a subject of "unsubscribe". Trouble? Contact > > listmas...@lists.debian.org > > Archive: > > https://lists.debian.org/20140714091211.3c1fd4cd@asus.tamerr > > > > No prob, by the way, better to answer to the list than PM to my address, as sby who might have same problem can see this thread and benefit of the info as well. Also, on this mailing list, generally you post down the thread, like this other persons reading the thread can get an idea of the whole thing, easily by scrolling down. Regarding the issue, if this is a lone host and you are not NATing, one easy way of trblshooting would be : -no manual ip address at all on eth0 -no manual routes as well, -then run pppoeconf, it's quite straight forward and tells you if it finds an aggregator on your ISP side. With the following top. PC----modem-----Internet Did you try to set up route manually, as I can see many routes under netstat -nr ? By the way, I never tried with subinterfaces on same phy for outside and inside, but I don't understand why you have a route for multicast(224 smtg) and also a route for the 117.0.0.0 network and at the same time one for 192.168, all that on eth0. Even if eth0 is showing eth0:0, I don't think you need a route for 117.0.0.0., neither one for multicast(224). Try to remove them and see what happened but would be better, faster and easier to just run pppoeconf with an eth0 interface without any IP address. Also, I was talking about traceroute from your host to outside. If it doesn't go anywhere, you will be sure the problem is on your side. Also, you said your host is alone, no network but eth0 on 192.168.1.2 can be pinged. I don't understand how that is possible. As a ref, I paste mine down here # netstat -nr Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface ISP.AGG.IP.ADD 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 0.0.0.0 0.0.0.0 0.0.0.0 U 0 0 0 ppp0 Thing is I have 2 phy interfaces, so ppp0 is not running on eth0 but eth1, that you cannot see here. I only ran pppoeconf, did not install any routes or ip address on the ppp0 interface. then ip a 2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:22:cf:6b:68:0d brd ff:ff:ff:ff:ff:ff 3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:07:95:d5:2f:da brd ff:ff:ff:ff:ff:ff inet 192.168.1.1/24 brd 192.168.1.255 scope global eth0 190: ppp0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1454 qdisc pfifo_fast state UNKNOWN qlen 3 link/ppp inet PUB.LIC.IP.ADD peer ISP.AGG.IP.ADD/32 scope global ppp0 hth ==== Mon, 14 Jul 2014 13:38:51 +0530 one interface eth0. + adsl modem-router Three possible states: 1 (Rare) output normal as in your eth0,ppp0 ppp0 address can be used to connect to host on all ports. 2 Usual,: only eth0 address 192.168.1.2 is visible, modem will be on 192.168.1.1 No ppp link: traceroute to some address first hops at 192.168.1.1 second hop at ppp-peer (117.x.x.1). 192.168.1.1-2 can be pinged. Public IP address maps to modem-router(ISP-provided). Can check with nmap Host unreachable on ssh, cannot be pinged from other hosts. Tcpdump cannot capture any packet tp/from public-ip addr: probably ppp0 on router itself (bridged mode) Public ip addr visible on modem web interface as WAN IP address ( and to interent hosts as ENV{REMOTE_ADDR}) >route -n Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 224.0.0.0 0.0.0.0 240.0.0.0 U 0 0 0 eth0 3 Infrequent: Public ip 117.222.13.120 (ppp0) /192.168.1.2 cannot be pinged. 192.168.1.1(modem) can be pinged Pulblic ip (ppp0) does not map to modem-router/localhost. Nmap returns all ports filtered. Traceroute to other hosts - first hop at 117.222.8.1.( ppp peer) Tcpdump detects pppoe session traffic from/to ppp0 [ether header absent - this is not localhost] >netstat -rn 117.0.0.0 routed thro' eth0 192.168.1.0 routed thro' ppp0 - - - Second and Third state : cannot connect to host from other hosts[ ssh telnet} Only localhost can initiate connection. DHCP lease is <24 hours. Can be a few hours or few minutes at times. Connectivity loss is random and frequent. pppoe stats on modem: Service VPI/VCI Protocol Interface Received Transmitted Bytes Pkts Errs Drops Bytes Pkts Errs Drops pppoe_0_35_1 0/0/35 PPPoE ppp_0_0_35_1 3162509 4204 0 0 312523 3994 0 0 br_0_32 0/0/32 Bridge nas_0_0_32 0 0 0 0 3992916 56909 0 283 br_0_100 0/0/100 Bridge nas_0_0_100 0 0 0 0 3992902 56909 0 282 br_8_81 0/8/81 Bridge nas_0_8_81 0 0 0 0 3993320 56910 0 280 br_8_35 0/8/35 Bridge nas_0_8_35 0 0 0 0 3992951 56909 0 280 br_14_34 0/14/34 Bridge nas_0_14_34 0 0 0 0 3992951 56909 0 279 br_1_41 0/1/41 Bridge nas_0_1_41 0 0 0 0 3993377 56910 0 277 Modem replacement does not alter the options. ==== Apologies for all earlier errors ==== -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/calm+mzrvnvpv5+2keqwss06khr3ov0cczgkeo-9zuay3ec8...@mail.gmail.com
