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...ian/patches/broadcast_dhcp_send.patch found here: https://launchpad.net/ubuntu/+archive/primary/+files/klibc_2.0.4-8ubuntu1.debian.tar.xz It would be nice if it is correctly fixed upstream. as this bug affects lot of distros. Basically the function dhcp_send() at dhcp_proto.c mistakenly define bootp.yiaddr = dev->ip_addr; when in a client originated DHCP DHCPREQUEST(RFC2131 Page 36) it should be bootp.yiaddr = INADDR_ANY; // "0" and also it forgets to define the flags bootp.flags = htons(0x800); Best, Patrick Signed-off-by: Patrick Masotta <masottaus at yahoo.com> --...

i am using tftp-hpa 0.32 to transfer boot image files of an aix 5.2 system. packets begin to go across the network and then they stop at about 4200 packets. when i boot from aix bootp server 15227 packets are transfered. i have tried with both xinetd and standalone modes with many different options. i am not sure why it is failing to transfer the entire image. are there certain options with in.tftp that i should be using? is it not possible to use a linux tftp server to serve a...

Is there any way to prevent the BOOTP client from injecting a default route? When I originally set things up our DHCP server would not send a default route because there was no gateway, local only. If you leave out the default route, the server will try proxy-arp when ends up putting a default route to itself in the routing t...

...lso connects to adept the DHCP (172.16.1.7). This net (172.16.1.0) shall be connected to 172.16.2.0 using the other NIC 172.16.2.1 (eth0, not in DNS). Attached to it is my WLAN access point (ymir, 172.16.2.12). And this is what happens: #> dhcrelay -i eth0 adept.mgr #> tcpdump -i any port bootpc or port bootps 09:42:09.996479 172.16.1.12.bootpc > 255.255.255.255.bootps: xid:0x960f0000 flags:0x8000 [|bootp] 09:42:09.997009 surtur.mgr.bootps > adept.mgr.bootps: (request) xid:0x960f0000 flags:0x8000 G:172.16.2.1 ether 0:9:5b:68:19:fb [|bootp] (DF) 09:42:09.997603 adept.mgr.bootps &...

...7 insertions(+), 1 deletion(-) diff --git a/usr/kinit/ipconfig/dhcp_proto.c b/usr/kinit/ipconfig/dhcp_proto.c index ebf79cc..d5b759b 100644 --- a/usr/kinit/ipconfig/dhcp_proto.c +++ b/usr/kinit/ipconfig/dhcp_proto.c @@ -201,8 +201,14 @@ static int dhcp_send(struct netdev *dev, struct iovec *vec) bootp.hlen = dev->hwlen; bootp.xid = dev->bootp.xid; bootp.ciaddr = INADDR_ANY; - bootp.yiaddr = dev->ip_addr; + /* yiaddr should always be set to 0 for the messages we're likely + * to send as a DHCP client: DHCPDISCOVER, DHCPREQUEST, DHCPDECLINE, + * DHCPINFORM, DHCPRELEASE + * cf....

...s included. Dis. Req. Client 35 47 ipconfig(master of git) 64p 64p isc-dhclient(4.1.1-P1 in Debian-squeeze) 64p 73 WindowsXP 32bit(my x86 PC) 64p 76 WindowsVista 64bit(my amd64 PC) I referred to RFC2131, RFC1541 and RFC951 for the length of 'options' (called 'vend' in BOOTP) field of DHCP Discover and Request packet. Basing on RFC, if the length is ... 64 octets: BOOP server which may be able to interpret DHCP too and DHCP server which can interpret 'options' of variable length will reply. 312 octets: DHCP server which can not interpret 'options' o...

...y understanding this confirms DHCP request of guest / domain: ld4004:~ # tcpdump -r /tmp/virbr0.pcap reading from file /tmp/virbr0.pcap, link-type EN10MB (Ethernet) 17:10:31.433263 IP6 :: > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 28 17:10:31.434772 IP 0.0.0.0.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 52:54:00:31:dd:59 (oui Unknown), length 300 17:10:31.435007 IP 192.168.100.1.bootps > 192.168.100.52.bootpc: BOOTP/DHCP, Reply, length 313 17:10:31.513284 IP6 :: > ff02::16: HBH ICMP6, multicast listener report v2, 2 group record(s), leng...

Using PXELINUX and MEMDISK I started a MS-DOS-Diskimage. How can I get the DHCP-Options or BOOTP-Tags from within MS-DOS?? (Like bppatch from 3com.) Thanks! _______________________________________________________________________ Jetzt neu! Sch?tzen Sie Ihren PC mit McAfee und WEB.DE. 3 Monate kostenlos testen. http://www.pc-sicherheit.web.de/startseite/?mc=022220

Hi, Here are two fixes for ipconfig/dhcp, the second of them being required for my dhcp3 server to accept ipconfig's requests. Thanks, Louis Louis Rilling (2): ipconfig: Fix missing dhcp_end field ipconfig: Fix null ciaddr on DHCPREQUEST during SELECTING state usr/kinit/ipconfig/dhcp_proto.c | 4 ++-- usr/kinit/ipconfig/packet.c | 2 +- 2 files changed, 3

...ts that I bring up only for installation and configuration I tried the following configuration. subnet 192.168.1.0 netmask 255.255.255.0 { pool { range 192.168.1.101 192.168.1.150; default-lease-time 86400; max-lease-time 604800; } pool { range dynamic-bootp 192.168.1.151 192.168.1.180; default-lease-time 600; max-lease-time 86400; next-server 192.168.1.231; filename "pxelinux.0"; } } in the hope that bootp-clients would get an IP from the second IP range. Documentation of dhcpd doesn't say if using t...

...| grep -v ssh | grep 10.0.5.187 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on virbr1, link-type EN10MB (Ethernet), capture size 96 bytes 17:57:29.809278 IP 10.0.5.50 > 10.0.5.187: ICMP echo request, id 189, seq 0, length 28 17:57:30.181841 IP 10.0.5.50.bootps > 10.0.5.187.bootpc: BOOTP/DHCP, Reply, length: 300 17:57:32.744740 IP 10.0.5.187.bootpc > 255.255.255.255.bootps: BOOTP/DHCP, Request from 00:95:12:7e:ee:71 (oui Unknown), length: 548 17:57:32.755528 IP 10.0.5.50.bootps > 10.0.5.187.bootpc: BOOTP/DHCP, Reply, length: 300 17:57:32.782129...

...86_CPU cpu I686_CPU ident SERGEY hints "DISKLESS.hints" # Default places to look for devices. makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols options KDB options KDB_TRACE options DDB options DDB_NUMSYM options GDB options BOOTP # Use BOOTP to obtain IP address/hostname # Requires NFSCLIENT and NFS_ROOT options BOOTP_NFSROOT # NFS mount root filesystem using BOOTP info options BOOTP_NFSV3 # Use NFS v3 to NFS mount root options BOOTP_COMPAT # Workaro...

...ch type of linux). I'm trying to boot the system from the network and it seems to be getting to downloading pxelinux.0 but then nothing happens after that.... I'm using ISC dhcpd V3.0pl2, tftp-hpa 0.34 and pxelinux 2.04. Here is a tcpdump of what's happening: 21:59:14.792397 0.0.0.0.bootpc > 255.255.255.255.bootps: xid:0x64c4edbb secs:4 flags:0x8000 [|bootp] 21:59:14.793743 sole2.bootps > 255.255.255.255.bootpc: xid:0x64c4edbb secs:4 fl ags:0x8000 Y:musica S:sole2 [|bootp] [tos 0x10] 21:59:16.795384 0.0.0.0.bootpc > 255.255.255.255.bootps: xid:0x64c4edbb secs:4 flags:0x8...

...ain INPUT (policy ACCEPT) target prot opt source destination ACCEPT udp -- anywhere anywhere udp dpt:domain ACCEPT tcp -- anywhere anywhere tcp dpt:domain ACCEPT udp -- anywhere anywhere udp dpt:bootps ACCEPT tcp -- anywhere anywhere tcp dpt:bootps ACCEPT udp -- anywhere anywhere udp dpt:domain ACCEPT tcp -- anywhere anywhere tcp dpt:domain ACCEPT udp -- anywhere anywhere udp dpt:b...

Hi All, Has anyone gotten the polycoms or the linksys phones to accept oprtion 66 on the dhcp request for the address of the tftp config server? We have the dhcp server issuing the proper IP of the tftp server, but the phones just sit there and never try to contact the tftp server for their configs. We can see the proper option going from the dhcp to the phones with ethereal trace. Thanks JR

----- Original Message ----- From: Gene Cumm <gene.cumm at gmail.com> > It's been a while since I used Yahoo but I didn't think I had > that issue.? GMail does default to top-posting Doing it manually... didn't find that option. > Perhaps also try -o 43.x=01:04:0a:d7:90:3c:ff (which will set the > mtftp option) in addition to -W. Tried it but still the same error.

...,22,20,21,25,109,110,143,10000 - ACCEPT masq fw udp 53 - ACCEPT masq fw tcp 80,443,53,22,20,21,25,109,110,143,10000 - ACCEPT loc fw udp 53 - ACCEPT loc fw tcp 80,443,53,22,20,21,25,109,110,143,10000 - ACCEPT masq fw tcp domain,bootps,http,https,631,imap,pop3,smtp,nntp,ntp - ACCEPT masq fw udp domain,bootps,http,https,631,imap,pop3,smtp,nntp,ntp - ACCEPT fw masq tcp 631,137,138,139 - ACCEPT fw masq udp 631,137,138,139 - ACCEPT fw net tcp 4661,4662 - ACCEPT fw ne...

This is what I'm seeing on my DHCP server: # tcpdump -i eth0 -vvv -s 1500 '(port 67 or port 68)' tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 1500 bytes 13:24:05.679950 IP (tos 0x0, ttl? 20, id 0, offset 0, flags [none], proto: UDP (17), length: 576) 0.0.0.0.bootpc > 255.255.255.255.bootps: [udp sum ok] BOOTP/DHCP, Request from 00:24:54:d9:d4:2f (oui Unknown), length 548, xid 0x55d9d42f, secs 4, Flags [ Broadcast ] (0x8000) ????????? Client-Ethernet-Address 00:24:54:d9:d4:2f (oui Unknown) ????????? Vendor-rfc1048 Extensions ??????????? Magic Cookie 0x6382...

>On Sat, Sep 12, 2015 at 6:37 PM, Gene Cumm <gene.cumm at gmail.com> wrote: >> >... > >> Something like this would be preferable except it's not quite so >> simple. We'd need to not store BOOTP siaddr before parsing. Store a >> pointer to the string during parsing if serverip is unset. After all >> parsing, if the pointer is set, attempt to resolve then set serverip. >> Last, if serverip is not set, copy siaddr to serverip. > >Perhaps a more important question is...

...for them is fine, so there''s no general networking problem. I use the xen 3.2 packages for CentOS on CentOS 5.1. There was a public IP address on eth0 and a private IP address on eth0:0. I changed that around after I discovered with tcpdump that dhcpd was replying on eth0 like publicip.bootps -> privateip.bootpc. This isn''t a problem for all other packets, but apparently for DHCP. Bridging is setup with the standard Xen 3.2 network-bridge script by xend like this: bridge name bridge id STP enabled interfaces eth0 8000.000c6e101f84...