Are you doing some NAT (Masquerading) ? Check out source code sometimes packets are counted twice because of passing an interface like ip-chains or other. hope this helps. alx On Fri, 7 Dec 2001, Kenneth Stephen wrote: > Hi, > > Here is the results of 'ifconfig > file; netstat -s >> file' on my > system : > > eth0 Link encap:Ethernet HWaddr 00:20:78:05:EA:0B > inet addr:X.Y.54.140 Bcast:X.Y.54.191 Mask:255.255.255.192 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:9813111 errors:0 dropped:0 overruns:0 frame:0 > TX packets:11709191 errors:1 dropped:0 overruns:1 carrier:0 > collisions:0 txqueuelen:100 > Interrupt:15 Base address:0xa000 > > eth1 Link encap:Ethernet HWaddr 00:03:6D:1C:E3:3F > inet addr:X.Y.19.1 Bcast:X.Y.19.31 Mask:255.255.255.224 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:696141 errors:0 dropped:0 overruns:0 frame:0 > TX packets:661248 errors:1 dropped:0 overruns:1 carrier:0 > collisions:0 txqueuelen:100 > Interrupt:5 Base address:0x9000 > > eth1:0 Link encap:Ethernet HWaddr 00:03:6D:1C:E3:3F > inet addr:X.Y.19.2 Bcast:X.Y.19.31 Mask:255.255.255.224 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > Interrupt:5 Base address:0x9000 > > lo Link encap:Local Loopback > inet addr:127.0.0.1 Mask:255.0.0.0 > UP LOOPBACK RUNNING MTU:3924 Metric:1 > RX packets:72 errors:0 dropped:0 overruns:0 frame:0 > TX packets:72 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:0 > > tr0 Link encap:16/4 Mbps Token Ring HWaddr 00:20:35:86:65:5A > inet addr:X.Y.83.1 Bcast:X.Y.83.31 Mask:255.255.255.224 > UP BROADCAST RUNNING MULTICAST MTU:2000 Metric:1 > RX packets:11122600 errors:0 dropped:0 overruns:0 frame:0 > TX packets:9222364 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:100 > Interrupt:9 Base address:0x9100 > > Ip: > 21583882 total packets received <----- Shouldnt this be 11122600 + > 696141 + 981311 = 21631852 ? > 21540362 forwarded > 0 incoming packets discarded > 12767 incoming packets delivered <----- What is this number? > 16868 requests sent out > 200 fragments failed <----- Is this a problem? > Icmp: > 554 ICMP messages received > 0 input ICMP message failed. > ICMP input histogram: > destination unreachable: 1 > echo requests: 526 > echo replies: 27 > 889 ICMP messages sent > 0 ICMP messages failed > ICMP output histogram: > destination unreachable: 338 > time exceeded: 25 > echo replies: 526 > Tcp: > 7 active connections openings > 0 passive connection openings > 0 failed connection attempts > 0 connection resets received > 1 connections established > 11130 segments received <--|______ What are these numbers? > 15656 segments send out <--| > 34 segments retransmited > 0 bad segments received. > 29 resets sent <----- Is this a problem? > Udp: > 352 packets received > 1 packets to unknown port received. <----???? > 0 packet receive errors > 354 packets sent > TcpExt: > SockMallocOOM: 0 > > > Why does the total packets received number not match up to whats > coming from 'ifconfig'? I'm running stock kernel 2.2.20 on a Debian distro > . netstat --version reports : > > net-tools 1.54 > netstat 1.38 (1999-04-20) > > ifconfig --version reports : > > net-tools 1.54 > ifconfig 1.39 (1999-03-18) > > If it helps, here is the routing table : > > Destination Gateway Genmask Flags Metric Ref Use > Iface > X.Y.19.0 0.0.0.0 255.255.255.224 U 0 0 0 > eth1 > X.Y.83.0 0.0.0.0 255.255.255.224 U 0 0 0 > tr0 > X.Y.54.128 0.0.0.0 255.255.255.192 U 0 0 0 > eth0 > 192.168.0.0 0.0.0.0 255.255.0.0 U 0 0 0 > eth1 > 0.0.0.0 X.Y.54.129 0.0.0.0 UG 0 0 0 > eth0 > > Any ideas / answers would be appreciated. > > Thanks, > Kenneth > > - > : send the line "unsubscribe linux-net" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Alexandre Dulaunoy adulau@conostix.com http://www.conostix.com/ - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
