之前一直尝试用virtualbox，找到一个支持64位虚拟化的机器，导入virtualbox，还是报错，出来的提示符居然是db> ，连FreeBSD的操作系统都没有进，于是在网上搜索想看看是否有什么方法解决，无意中看到如下链接：http://forum.gns3.net/topic7711.html，说GNS中需要设置网卡Qemu options: -smp 2 -device vmxnet3 ，于是抱着试一试的想法，测试了一下，之前一直不能出现的网卡终于出现了!!!!

root@% ifconfig
lsi:    encaps: (null); framing: pseudo
        flags=0x3/0x8000 <PRESENT|RUNNING>

dsc:    encaps: (null); framing: pseudo
        flags=0x3/0x8010 <PRESENT|RUNNING/POINTOPOINT>

lo0:    encaps: loopback; framing: local
        flags=0x103/0x8000 <PRESENT|RUNNING|LOOPBACK>
lo0.16384:      flags=0x8000 <UP|MULTICAST>
        inet mtu 4294967295 local=127.0.0.1
lo0.16385:      flags=0x8000 <UP|MULTICAST>
        inet mtu 4294967295 local=128.0.0.4
        inet6 mtu 4294967295 local=fe80::2aa:f:fcd5:ab00
lo0.32768:      flags=0x0 <UP|MULTICAST>

em0:    encaps: ether; framing: ether
        flags=0x3/0x8000 <PRESENT|RUNNING>
        curr media: i802 0:aa:0:d5:ab:0
em0.0:  flags=0x8000 <UP|MULTICAST>
        inet primary mtu 1500 local=10.1.1.1 dest=10.1.1.0/24 bcast=10.1.1.255

em1:    encaps: ether; framing: ether
        flags=0x3/0x8000 <PRESENT|RUNNING>
        curr media: i802 0:aa:0:d5:ab:1

gre:    encaps: (null); framing: <error>
        flags=0x3/0x8010 <PRESENT|RUNNING/POINTOPOINT>

ipip:   encaps: (null); framing: <error>
        flags=0x3/0x8000 <PRESENT|RUNNING>

tap:    encaps: other; framing: pseudo
        flags=0x3/0x8000 <PRESENT|RUNNING>

pime:   encaps: (null); framing: <error>
        flags=0x3/0x8000 <PRESENT|RUNNING>

pimd:   encaps: (null); framing: <error>
        flags=0x3/0x8000 <PRESENT|RUNNING>

em5:    encaps: ether; framing: ether
        flags=0x3/0x8000 <PRESENT|RUNNING>
        curr media: i802 0:0:ab:16:7d:5

em4:    encaps: ether; framing: ether
        flags=0x3/0x8000 <PRESENT|RUNNING>
        curr media: i802 0:0:ab:b:7e:4

em3:    encaps: ether; framing: ether
        flags=0x3/0x8000 <PRESENT|RUNNING>
        curr media: i802 0:0:ab:79:c1:3

em2:    encaps: ether; framing: ether
        flags=0x3/0x8000 <PRESENT|RUNNING>
        curr media: i802 0:0:ab:9:94:2

mtun:   encaps: (null); framing: <error>
        flags=0x3/0x8000 <PRESENT|RUNNING>

demux0: encaps: (null); framing: pseudo
        flags=0x3/0x8010 <PRESENT|RUNNING/POINTOPOINT>

cbp0:   encaps: ether; framing: ether
        flags=0x3/0x8000 <PRESENT|RUNNING>
        curr media: i802 0:5:86:71:ca:11

pip0:   encaps: ether; framing: ether
        flags=0x3/0x8000 <PRESENT|RUNNING>
        curr media: i802 0:5:86:71:cd:e0

pp0:    encaps: (null); framing: <error>
        flags=0x3/0x8010 <PRESENT|RUNNING/POINTOPOINT>

irb:    encaps: ether; framing: ether
        flags=0x3/0x8000 <PRESENT|RUNNING>
        curr media: i802 0:5:86:71:ce:20

root@% cli
root> ping 10.1.1.1  
PING 10.1.1.1 (10.1.1.1): 56 data bytes
64 bytes from 10.1.1.1: icmp_seq=0 ttl=64 time=4.904 ms
^C
--- 10.1.1.1 ping statistics ---
1 packets transmitted, 1 packets received, 0% packet loss
round-trip min/avg/max/stddev = 4.904/4.904/4.904/0.000 ms

root>

简单描述一下步骤：

1. 获得OVA文件
   

2. 用winrar将ova文件解压

3. 将解压后的最大文件，用转换工具转换成GNS能识别的二进制文件img（因为是很早之前转换的，具体怎么转忘记了，网上应该能搜到链接）

4. 在GNS的qemu中JUNOS中添加转换后的img文件，并添加Qemu options: -smp 2 -device vmxnet3

本文出自 “httpyuntianjxxll.spac..” 博客，请务必保留此出处http://333234.blog.51cto.com/323234/1560385

终于在GNS中跑SRX有网卡了，纪念一下！