Bug 34735

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User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT; ISM 2000)


Pump uses the -h (hostname) option when getting an initial dhcp lease, but 
always uses the hostname for renewal.

For instance, the hostname is "rocky", butthe network is Win2K with DDNS, 
and I need to specify that the hostname for dhcp/dns purposes is "lab01" 
(e.g. "nslookup lab01.our.domain" returns this box's dhcp assigned address)

setting DHCP_HOSTNAME="lab01" in /etc/rc.d/init.d/network-scripts/ifcfg-
eth0 works on the initial lease, but then pump reverts to "rocky" on the 
renewal.



Reproducible: Always
Steps to Reproduce:
(tcpdumps of the traffic to the dhcp server included)

1. ifconfig eth0 down
2. pump -h lab01 -i eth0

----
- 09:41:36.896988 eth0 > 0.0.0.0.bootpc > 255.255.255.255.bootps:
-    xid:0x9eb5257c ether 0:50:da:7c:d0:2 vend-rfc1048 DHCP:DISCOVER 
-    HN:"lab01^@"
- 09:41:40.008061 eth0 > 0.0.0.0.bootpc > 255.255.255.255.bootps:
-    xid:0x9eb5257c secs:1024 ether 0:50:da:7c:d0:2 vend-rfc1048
-    DHCP:DISCOVER HN:"lab01^@"
---

3. nslookup <the leased ip> (works - returns lab01.our.domain)
4. pump -R

---
- 09:41:53.040446 eth0 > lab01.our.domain.bootpc >
-    dhcpsrv.our.domain.bootps:
-    xid:0x8fb5257c C:dhcpsrv.our.domain ether 0:50:da:7c:d0:2 
-    vend-rfc1048 DHCP:REQUEST HN:"rocky^@" LT:3232235520
- 09:41:53.042603 eth0 < dhcpsrv.our.domain.bootps >
-    lab01.our.domain.bootpc:
-    xid:0x8fb5257c Y:lab01.our.domain -ether 0:50:da:7c:d0:2 
-    vend-rfc1048 DHCP:ACK RN:134676480 RB:1309409280 LT:269352960
-    SID:dhcpsrv.our.domain -SM:255.255.255.0
---

5. nslookup <the leased ip> (returns rocky.our.domain !!!!)


Actual Results:  On the initial nslookup, the name from the pump -h was 
returned.  (lab01)

After the forced renewal, the hostname and not the -h parameter was used.  
This also happens when the renewal happens because lease time has expired

Expected Results:  If -h is used with pump, I believe it should always use 
that value for the interface.  It should never use the machine's local 
hostname if a different value in -h is given. 

This is confirmed to still be a problem in pump-0.8.11-1